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WO1986006983A1 - Nouveaux collecteurs pour le flottage selectif dans de la mousse de mineraux a base de sulfure - Google Patents

Nouveaux collecteurs pour le flottage selectif dans de la mousse de mineraux a base de sulfure Download PDF

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Publication number
WO1986006983A1
WO1986006983A1 PCT/US1986/000350 US8600350W WO8606983A1 WO 1986006983 A1 WO1986006983 A1 WO 1986006983A1 US 8600350 W US8600350 W US 8600350W WO 8606983 A1 WO8606983 A1 WO 8606983A1
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WO
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Prior art keywords
sulfide
metal containing
collector
minerals
mineral
Prior art date
Application number
PCT/US1986/000350
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English (en)
Inventor
Richard R. Klimpel
Robert D. Hansen
Edwin J. Strojny
Original Assignee
The Dow Chemical Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by The Dow Chemical Company filed Critical The Dow Chemical Company
Priority to BR8606705A priority Critical patent/BR8606705A/pt
Publication of WO1986006983A1 publication Critical patent/WO1986006983A1/fr
Priority to FI870368A priority patent/FI80834C/fi
Priority to SE8700376A priority patent/SE500499C2/sv
Priority to NO870393A priority patent/NO168992C/no

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/004—Organic compounds
    • B03D1/012—Organic compounds containing sulfur
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/02—Collectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2203/00—Specified materials treated by the flotation agents; Specified applications
    • B03D2203/02—Ores

Definitions

  • This invention concerns novel collectors for the recovery of metal containing sulfide minerals and sulfidized metal containing oxide minerals from ores by froth flotation.
  • Flotation is a process of treating a mixture of finely divided mineral solids, e.g., a pulverulent ore, suspended in a liquid whereby a portion of such solids is separated from other finely divided solids, e.g., clays and other like materials present in the ore, by introducing a gas (or providing a gas in situ) in the liquid to produce a frothy mass containing certain of the solids on the top of the liquid, and leaving suspended (unfrothed) other solid components of the ore.
  • a gas or providing a gas in situ
  • Flotation is based on the principle that introducing a gas into a liquid containing solid particles of different materials suspended therein causes adherence of some gas to certain suspended solids and not to others and makes the particles having the gas thus adhered thereto lighter than the liquid. Accordingly, these particles rise to the top of the liquid to form a froth.
  • collectors for sulfide minerals including xanthates, thionocarbamates and the like; frothers which impart the property of forming a stable froth, e.g., natural oils such as pine oil and eucalyptus oil; modifiers such as activators to induce flotation in the presence of a collector, e.g., copper sulfate; depressants, e.g., sodium cyanide, which tend to prevent a collector from functioning as such on a mineral which it is desired to retain in the liquid, and thereby discourage a substance from being carried up and forming a part of the froth; pH regulators to produce optimum metallurgical results, e.g., lime, soda ash and the like.
  • frothers which impart the property of forming a stable froth, e.g., natural oils such as pine oil and eucalyptus oil
  • modifiers such as activators to induce flotation in the presence of a collector, e.g.,
  • additives of the hereinbefore described types are selected for use according to the nature of the ore, the mineral(s) sought to be recovered, and the other additaments which are to be used in combination therewith.
  • the flotation principle is applied in a number of mineral separation processes among which is the selective separation of such metal sulfide minerals as those containing copper, zinc, lead, nickel, molybdenum, and other metals from iron containing sulfide minerals such as pyrite and pyrrhotite.
  • collectors commonly used for the recovery of metal containing sulfide minerals or sulfidized metal containing oxide minerals are xanthates, dithiophosphates, and thionocarbamates.
  • Other collectors commonly recognized as useful in the recovery of metal containing sulfide minerals or sulfidized metal containing oxide minerals are mercaptans, disulfides
  • the conversion of metal containing sulfide minerals or sulfidized metal containing oxide minerals to the more useful pure metal state, is often achieved by smelting processes. Such smelting processes can result in the formation of volatile sulfur compounds. These volatile sulfur compounds are often released to the atmosphere through smokestacks, or are removed from such smokestacks by expensive and elaborate scrubbing equipment. Many nonferrous metal containing sulfide minerals or metal containing oxide minerals are found naturally in the presence of iron containing sulfide minerals such as pyrite and pyrrhotite.
  • the xanthates, thionocarbamates, and dithiophosphates do not selectively recover nonferrous metal containing sulfide minerals in the presence of iron containing sulfide minerals.
  • collectors collect and recover all metal containing sulfide minerals.
  • the mercaptan collectors have an environmentally undesirable odor and are very slow kinetically in the flotation of metal containing sulfide minerals.
  • the disulfides and polysulfides when used as collectors, give low recoveries with slow kinetics. Therefore, the mercaptans, disulfides, and polysulfides are not generally used commercially. Furthermore, the mercaptans, disulfides and polysulfides do not selectively recover nonferrous metal containing sulfide minerals in the presence of iron containing sulfide minerals.
  • This invention concerns a froth flotation process for selectively recovering nonferrous metal containing sulfide minerals or sulfidized metal containing oxide minerals from ores.
  • this invention concerns a process for recovering metal containing sulfide minerals or sulfidized metal containing oxide minerals from an ore which comprises subjecting the ore, in the form of an aqueous pulp, to a froth flotation process in the presence of a flotating amount of a flotation collector wherein the collector has a hydrocarbon containing one or more monosulfide units, wherein the carbon atoms to which the sulfur atom(s) are bound are aliphatic or cycloaliphatic carbon atoms, and the total carbon content of the hydrocarbon portion of the collector is such that the collector has sufficient hydrophobic character to cause the metal containing sulfide mineral or sulfidized metal containing oxide mineral particles to be driven to the air/bubble interface, under conditions such that the metal containing sulfide mineral or sulfidized metal containing oxide mineral is recovered in the froth.
  • novel collectors of this invention result in surprisingly high recovery of nonferrous metal containing sulfide minerals or sulfidized metal containing oxide minerals, and a surprisingly high selectivity toward such nonferrous metal containing sulfide minerals and sulfidized metal containing oxide minerals when such metal containing sulfide minerals or sulfidized metal containing oxide minerals are found in the presence of iron containing sulfide minerals.
  • These collectors demonstrate good recovery and good kinetics.
  • the novel collector of this invention is a hydrocarbon which contains one or more monosulfide units wherein the sulfur atoms of the sulfide units are bound to non-aromatic carbon atoms, i.e., aliphatic or cycloaliphatic carbon atoms.
  • Monosulfide unit refers herein to a unit wherein a sulfur atom is bound to two carbon atoms of a hydrocarbon moiety only.
  • Such hydrocarbon compounds containing one or more monosulfide units, as used herein, include such compounds which are substituted with hydroxy, cyano, halo, ether, hydrocarbyloxy and hydrocarbyl thioether moieties.
  • Non-aromatic carbon atom refers herein to a carbon atom which is not part of an aromatic ring.
  • Preferred hydrocarbons containing monosulfide units include those corresponding to the formula
  • R 1 and R 2 are independently a hydrocarbyl radical or a hydrocarbyl radical substituted with one or more hydroxy, cyano, halo, ether, hydrocarbyloxy or hydrocarbyl thioether moieties;
  • R 1 and R 2 may combine to form a heterocyclic ring structure with S; with the proviso that S is bound to an aliphatic or cycloaliphatic carbon atom; with the further proviso that the total carbon content of the sulfide collector be such that the sulfide collector has sufficient hydrophobic character to cause the metal sulfide particles to be driven to the air/bubble interface.
  • R 1 and R 2 are independently an aliphatic, cycloaliphatic or aralkyl moiety, unsubstituted or substituted with one or more hydroxy, cyano, halo, OR 3 , or SR 3 moieties, wherein R 3 is a hydrocarbyl radical; wherein R 1 and R 2 may combine to form a heterocyclic ring with S.
  • R 1 and R 2 are more preferably an aliphatic or cycloaliphatic moiety, unsubstituted or substituted with one or more hydroxy, cyano, halo, OR 3 , or SR 3 moieties; wherei.n R 1 and R 2 may combine to form a heterocyclic ring with S.
  • R 1 and R 2 do not combine to form a heterocyclic ring with S
  • R 1 and R 2 are alkyl, alkenyl, alkynyl, cycloalkyl or cycloalkenyl, unsubstituted or substituted with one or more hydroxy, halo, cyano, OR 3 or SR 3 moieties, wherein R 3 is ali.phatic or cycloaliphatic.
  • R 1 and R 2 are independently alkyl or alkenyl, particularly R 1 is methyl or ethyl and R 2 is a C 6-11 alkyl or C 6-11 alkenyl group.
  • R 1 and R 2 are not the same hydrocarbon moiety, that is, the monosulfide is asymmetrical.
  • R 3 is preferably aliphatic or cycloaliphatic.
  • R 3 is more preferably alkyl, alkenyl, cycloalkyl or cycloalkenyl.
  • the total carbon content of the hydrocarbon portion of the hydrocarbon monosulfide collector must be such that the sulfide collector has sufficient hydrophobic character to cause the metal containing sulfide mineral or sulfidized metal containing oxide mineral particles to be driven to the air/bubble interface.
  • the total carbon content of the hydrocarbon monosulfide collector is such that the minimum carbon number is 4, more preferably 6, and most preferably 8.
  • the maximum carbon content is preferably 20, more preferably 16, and most preferably 12. Examples of cyclic compounds useful in this invention include the following structures.
  • R 4 is independently aryl, alkaryl, aralkyl, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, hydroxy, cyano, halo, OR 3 or SR 3 , wherein the aryl, alkaryl, aralkyl, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl may optionally be substituted with a hydroxy, cyano, OR 3 or SR 3 moi.ety, and the like; and R 5 is a straight- or branched-alkylene, -alkenylene, or
  • the collectors of this invention correspond to the formula
  • R 6 is independently hydrocarbyl, or hydrocarbyl substituted with a hydroxy, cyano, halo, ether, hydrocarbyloxy or hydrocarbyl thioether moiety; wherein two R 6 moieties may combine to form a cyclic ring or heterocyclic ring with the sulfur atom; n is an integer of 0, 1, 2 or 3; with the proviso that the total carbon content of the hydrocarbon portion of the collector is such that the collector has sufficient hydrophobic character to cause the metal containing sulfide mineral or sulfidized metal containing oxide mineral particles to be driven to the air/bubble interface.
  • R 6 is aliphatic, cycloaliphatic, aryl, alkaryl or aralkyl, unsubstituted or substituted with a cyano, hydroxy, halo, OR 3 or SR 3 moiety, wherein
  • R 3 is as hereinbefore defined. More preferably, R 6 is an aliphatic or cycloaliphatic moiety, unsubstituted or substituted with a hydroxy, cyano, halo, aliphatic ether, cycloaliphatic ether, aliphatic thioether or cycloaliphatic thioether moiety. Even more preferably,
  • R 6 is an alkyl, alkenyl, cycloalkyl or cycloalkenyl moiety. Most preferably, one -C(H) n (R 6 ) 3-n is a methyl or ethyl moiety, and the other is a C 6-11 alkyl or C 6-11 alkenyl moiety. Preferably, n is 1, 2 or 3, and more preferably 2 or 3.
  • R 1 -S-R 2 The preferred hydrocarbon containing monosulfide units of the formula R 1 -S-R 2 , wherei.n R 1 and R 2 are defined as above, are prepared by standard methods known in the art, e.g. reacting R 2 -H with R 1 -SH, where R 1 and R 2 are defined as above.
  • Examples of compounds within the scope of this invention include methylbutyl sulfide, methylpentyl sulfide, methylhexyl sulfide, methylheptyl sulfide, methyloctyl sulfide, methylnonyl sulfide, methyldecyl sulfide, methylundecyl sulfide, methyldodecyl sulfide, methylcyclopentyl sulfide, methylcyclohexyl sulfide, methylcycloheptyl sulfide, methylcyclooctyl sulfide, ethylbutyl sulfide, ethylpentyl sulfide, ethylhexyl sulfide, ethylheptyl sulfide, ethyloctyl sulfide, ethy
  • More preferred sulfides include methylhexyl sulfide, methylheptyl sulfide, methyloctyl sulfide, methylnonyl sulfide, methyldecyl sulfide, ethylhexyl sulfide, ethylheptyl sulfide, ethyloctyl sulfide, ethylnonyl sulfide, ethyldecyl sulfide, dibutyl sulfide, dipentyl sulfide, dihexyl sulfide, diheptyl sulfide, and dioctyl sulfide.
  • Hydrocarbon means herein an organic compound containing carbon and hydrogen atoms.
  • the term hydrocarbon includes the following organic compounds: alkanes, alkenes, alkynes, cycloalkanes, cycloalkenes, cycloalkynes, aromatics, aliphatic and cycloaliphatic aralkanes and alkyl-substituted aromatics.
  • Aliphatic refers herein to straightand branched-chain, and saturated and unsaturated, hydrocarbon compounds, that is, alkanes, alkenes or alkynes. Cycloaliphatic refers herein to saturated and unsaturated cyclic hydrocarbons, that is, cycloalkenes and cycloalkanes.
  • Cycloalkane refers to an alkane containing one, two, three or more cyclic rings.
  • Cycloalkene refers to mono-, di- and polycyclic groups containing one or more double bonds.
  • Hydrocarbyl means herein an organic radical containing carbon and hydrogen atoms. The term hydrocarbyl includes the following organic radicals: alkyl, alkenyl, alkynyl, cycloalkyl, cyclo- alkenyl, aryl, aliphatic and cycloaliphatic aralkyl and alkaryl.
  • aryl refers herein to biaryl, biphenylyl, phenyl, naphthyl, phenanthrenyl, anthra- cenyl and two aryl groups bridged by an alkylene group.
  • Alkaryl refers herein to an alkyl-, alkenyl- or alkynyl- -substituted aryl substituent, wherein aryl is as defined hereinbefore.
  • Aralkyl means herein an alkyl group, wherein aryl is as defined hereinbefore.
  • C 1-20 alkyl includes straight- and branched-chain methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl and eic ⁇ syl groups.
  • Halo means herein a chloro, bromo, or iodo group.
  • the process of this invention is useful for the recovery, by froth flotation, of metal containing sulfide minerals and sulfidized metal containing oxide minerals from ores.
  • An ore refers herein to the material as it is taken out of the ground and includes the desired metal containing minerals in admixture with the gangue. Gangue refers herein to that portion of the material which is of no value and needs to be separated from the desired metal containing minerals.
  • metal containing sulfide minerals are recovered.
  • metal sulfide containing minerals containing copper, nickel, lead, zinc, or molybdenum are recovered.
  • sulfide minerals containing copper are recovered.
  • metal sulfide containing minerals are those which have high natural hydrophobicity in the unoxidized state.
  • hydrophobicity in the unoxidized state applies to a freshly ground mineral or a mineral having a fresh surface which demonstrates a tendency to float without collector addition.
  • Ores for which these compounds are useful include sulfide mineral ores containing, copper, zinc, molybdenum, cobalt, nickel, lead, arsenic, silver, chromium, gold, platinum, uranium and mixtures thereof.
  • lead-bearing minerals such as, for example, galena (PbS).; antimony-bearing minerals such as, for example, stibnite (Sb 2 S 3 ); zinc-bearing minerals such as, for example, sphalerite (ZnS); silver-bearing minerals such as, for example, stephanite (Ag 5 SbS 4 ), and argentite (Ag 2 S); chromium-bearing minerals such as, for example, daubreelite (FeSCrS,); nickel-bearing minerals such as, for example, pentlandite [(FeNi) 9 S 8 ]; molybdenum-bearing minerals such as for example, molybdenite (MoS 2 ) ; arid platinum- and palladium-bearing minerals such as
  • Sulfidized metal containing oxide minerals are minerals which are treated with a sulfidization chemical, so as to give such minerals sulfide mineral characteristics, so the minerals can be recovered in froth flotation using collectors which recover sulfide minerals. Sulfidization results in oxide minerals having sulfide characteristics. Oxide minerals are sulfidized by contact with compounds which react with the minerals to form a sulfur bond or affinity. Such methods are well-known in the art. Such compounds include sodium hydrosulfide, sulfuric acid and related sulfur containing salts, such as sodium sulfide.
  • Sulfidized metal containing oxide minerals for which this process is useful include oxide minerals containing copper, aluminum, iron, tungsten, molybdenum, magnesium, chromium nickel, titanium, manganese, tin, uranium, and mixtures thereof.
  • iron- and titanium-containing minerals such as ilmenite; magnesium- and aluminum-containing minerals, such as spinel; iron-chromium-containing minerals, such as chromite; titanium-containing minerals, such as rutile; manganese-containing minerals, such as pyrolusite; tin-containing minerals, such as cassiterite; and uranium-containing minerals, such as uraninite; and uranium-bearing minerals such as, for example, pitchblende [U 2 O 5 (U 3 O 8 )] and gummite (UO 3 nH 2 O).
  • the collectors of this invention can be used in any concentration which gives the desired recovery of the desired minerals.
  • concentration used is dependent upon the particular mineral(s) to be recovered, the grade of the ore to be subjected to the froth flotation process, the desired quality of the mineral to be recovered, and the particular mineral which is being recovered.
  • the collectors of this invention are used in concentrations of 0.001 kg to 1.0 kg per metric ton of ore, more preferably between about 0.010 kg and 0.2 kg of collector per metric ton of ore to be subjected to froth flotation.
  • Frothers are preferably used in the froth flotation process of this invention. Any frother well-known in the art, which results in the recovery of the desired mineral is suitable.
  • Frothers useful in this invention include any frothers known in the art which give the recovery of the desired mineral. Examples of such frothers include C 5-8 alcohols, pine oils, cresols, C 1-4 alkyl ethers of polypropylene glycols, dihydroxylates of polypropylene glycols, glycols, fatty acids, soaps, alkylaryl sulfonates , and the like . Furthermore, blends of such frothers may also be used. All frothers which are suitable for beneficiation of ores by froth flotation can be used in this invention.
  • collectors of this invention can be used in mixtures with other collectors well-known in the art.
  • Collectors known in the art, which may be used in admixture with the collectors of this invention are those which will give the desired recovery of the desired mineral.
  • collectors useful in this invention include alkyl monothiocarbonates, alkyl dithiocarbonates, alkyl trithiocarbonates, dialkyl dithiocarbonates, alkyl thionocarbamates, dialkyl thioureas, monoalkyl dithiophosphates, dialkyl and diaryl dithiophosphates, dialkyl monothiophosphates, dialkyl and diaryl thiophosphonyl chlorides, dialkyl and diaryl dithiophosphonates, alkyl mercaptans, xanthogen formates, xanthate esters, mercapto benzothiazoles, fatty acids and salts of fatty acids, alkyl sulfuric acids and salts thereof, alkyl and alkaryl sulfonic acids and salts thereof, alkyl phosphoric acids and salts thereof, alkyl and aryl phosphoric acids and salts thereof, sulfosuccinates, sulfosuccinamates, primary amine
  • ⁇ is the fractional amount of mineral recovered at time t
  • k is the rate constant for the rate of recovery
  • R ⁇ is the calculated fractural amount of the mineral which would be recovered at infinite time. The amount recovered at various times is determined experimentally and the series of values are substituted into the equation to obtain the R ⁇ and k. The above formula is explained in Klimpel, "Selection of Chemical Reagents for Flotation", Chapter 45, pp. 907-934, Mineral Processing Plant Design, 2nd Ed., 1980, AIME (Denver).
  • the collector was added to the float cell (8 g/metric ton), followed by a conditioning time of one minute, at which time the frother, DOWFROTH ® 250, was added (18 g/metric ton). After an additional one-minute conditioning time, the air to the float cell was turned on at a rate of 4.5 liters per minute and the automatic froth removal paddle was started. The froth samples were taken off at 0.5, 1.5, 3, 5 and 8 minutes. The froth samples were dried overnight in an oven, along with the flotation tailings. The dried samples were weighed, divided into suitable samples for analysis, pulverized to insure suitable fineness, and dissolved in acid for analysis. The samples were analyzed using a DC Plasma Spectrograph. The results are compiled in Table I .
  • the collectors of this invention demonstrate better rates and equilibrium recovery than mercaptan and polysulfide collectors.
  • Bags of homogeneous ore containing chalcopyrite and molybdenite minerals were prepared with each bag containing 1200 g.
  • the rougher flotation procedure was to grind a 1200 g charge with 800 ml of tap water for 14 minutes in a ball mill having a mixed ball charge (to produce approximately a 13 percent plus 100 mesh grind). This pulp was transferred to an Agitair 1500 ml flotation cell outfitted with an automated paddle removal system. The slurry pH was adjusted to 10.2 using lime. No further pH adjustments were made during, the test.
  • the standard frother was methyl isobutyl carbinol (MIBC). A four-stage rougher flotation scheme was then followed.
  • MIBC methyl isobutyl carbinol
  • STAGE 2 Collector 0.0021 kg/metric ton MIBC 0.005 kg/metric ton condition - 0.5 minute float - collect concentrate for 1.5 minutes
  • STAGE 3 Collector - 0.0016 kg/metric ton MIBC - 0.005 kg/metric ton
  • 1 - R-7 is the experimental fractional recovery after 7 minutes
  • 2 - Grade is the fractional content of the specified metal in total weight collected in the froth
  • the use of the collectors of this invention has a significant influence both on improving the overall concentrate grade (the fraction of desired metal containing sulfide mineral in the final flotation product) as well as a significant lowering of pyrite in the concentrate as measured by the lowering of the Fe assay of the product. This is true regardless of the dosage being used. This means less mass being fed to smelters and less sulfur emissions per unit of metal being produced.
  • the collectors of this invention give a copper recovery comparable to sodium amyl xanthate; the collectors of this invention result in much higher rates of flotation.
  • the collectors of this invention result in a lower nickel recovery than sodium amyl xanthate, but also provide a much lower recovery of undesired iron sulfide pyrrhotite. This is indicated by the R 12 value of pyrrhotite and the about 50 percent increase in selectivity of nickel sulfide mineral over the undesired iron sulfide mineral pyrrhotite.
  • Uniform 1000 g samples of ore were prepared.
  • the ore contained galena, sphalerite, chalcopyrite, and argentite minerals.
  • a sample was added to a rod mill along with 500 ml of tap water and 7.5 ml of SO 2 solution.
  • Six and one-half minutes of mill time were used to prepare a feed of 90 percent less than 200 mesh (75 microns).
  • the contents were transferred to a cell fitted with an automated paddle for froth removal, and the cell was attached to a standard Denver flotation mechanism.
  • Stage II A two-stage flotation was then performed.
  • a copper/lead/silver rougher float was carried out
  • Stage II a zinc rougher float was carried out.
  • 1.5 g/kg Na 2 CO 3 was added (pH of 9 to 9.5), followed by the addition of collector(s).
  • the pulp was then conditioned for 5 minutes with air and agitation. This was followed by a 2-minute condition period with agitation only. MIBC frother was then added (standard dose of 0.015 ml/kg). Concentrate was collected for 5 minutes of flotation and labeled as copper/lead rougher concentrate.
  • the Stage II flotation consisted of adding 0.5 kg/metric ton of CuSO 4 to the cell remains of Stage I.
  • the pH was then adjusted to 10.5 with lime addition. This was followed by a condition period of 5 minutes with agitation only. pH was then rechecked and adjusted back to 10.5 with lime. At this point, the collector(s) were added, followed by a 5-minute condition period with agitation only. MIBC frother was then added (standard dose of 0.020 ml/kg). Concentrate was collected for 5 minutes and labeled as zinc rougher concentrate.
  • a 500 g quantity of a copper/molybdenum ore from South America was placed in a rod mill having one-inch (2.5 cm) rods along with 257 g of deionized water and a quantity of lime.
  • the mixture was ground for 360 revolutions at a speed of 60 rpm to produce a size distribution of suitable finess (about 25 percent less than 100 mesh).
  • the float cell was agitated at 1150 rpm and the pH was adjusted to 8.5 by the addition of either lime or hydrochloric acid.
  • the collector was added to the float cell (45 g/metric ton), followed by a conditioning time of one minute, at which time the frother, DOWFROTH ® 250, was added (36.4 g/metric ton). After an additional conditioning time of one minute, the air to the float cell was turned on at a rate of 4.5 liters per minute and the automatic froth removal paddle was started. Samples of the froth were collected at 0.5, 1.5, 3, 5, and 8 minutes. The froth samples were dried overnight in an over along with the flotation tailings. The dried samples were weighed, divided into suitable samples for analysis, pulverized to insure suitable fineness, and dissolved in acid for analysis on a DC Plasma Spectrograph. The results are compiled in Table V.
  • the collectors of this invention show a significant increase in molybdenum recovery over the standard reagent; however, there is a decrease in the copper recovery. Also a very significant desired decrease is shown in the recovery of iron-bearing sulfide minerals.
  • Example 1 When the procedure of Example 1 was repeated using a relatively high grade chalcopyrite containing ore with little pyrite from a different location in the same mine as Example 1, the following results were obtained as compiled in Table VI .
  • This example illustrates two fractors: 1) the influence of the hydrophobic portion of the collector; 2) the comparison of the compounds of this invention to a simple inorganic sulfide (Na 2 S ) .

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  • Treatment Of Water By Oxidation Or Reduction (AREA)
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Abstract

Procédé de flottage dans de la mousse destiné à extraire sélectivement du métal non ferreux contenant des minéraux à base de sulfure ou des minéraux d'oxydes contenant du métal sulfuré à partir de minerais. La présente invention consiste plus particulièrement à soumettre le minerais, sous la forme d'une pulpe aqueuse, à un procédé de flottage dans de la mousse en présence d'une certaine quantité de flottage d'un collecteur de flottage comprenant un hydrocarbure contenant une ou plusieurs unités de monosulfure, les atomes de carbone auxquels les atomes de soufre sont liés étant des atomes de carbone aliphatiques ou cyclo-aliphatiques. La teneur totale en carbone de la partie d'hydrocarbure du collecteur est telle que le collecteur est suffisament hydrophobe pour permettre aux minéraux à base de soufre contenant du métal ou aux particules minérales d'oxyde contenant du métal sulfuré d'être conduits à l'interface de l'air ou des bulles, de telle sorte que le minéral à base de sulfure contenant du métal ou le minéral d'oxyde contenant du métal sulfuré est récupéré dans la mousse.
PCT/US1986/000350 1985-05-31 1986-02-18 Nouveaux collecteurs pour le flottage selectif dans de la mousse de mineraux a base de sulfure WO1986006983A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BR8606705A BR8606705A (pt) 1985-05-31 1986-02-18 Novos coletores para a flotacao seletiva em espuma de minerais de sulfureto
FI870368A FI80834C (fi) 1985-05-31 1987-01-28 Nya kollektorer foer selektiv flotation av sulfidmineraler.
SE8700376A SE500499C2 (sv) 1985-05-31 1987-01-30 Förfarande för skumflotation av sulfidmineral
NO870393A NO168992C (no) 1985-05-31 1987-01-30 Fremgangsmaate for utvinning av metallholdige sulfidmineraler eller sulfifiserte metallholdige oksydmineraler fra enmalm

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US74009185A 1985-05-31 1985-05-31
US740,091 1985-05-31

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WO1986006983A1 true WO1986006983A1 (fr) 1986-12-04

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PCT/US1986/000350 WO1986006983A1 (fr) 1985-05-31 1986-02-18 Nouveaux collecteurs pour le flottage selectif dans de la mousse de mineraux a base de sulfure

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JP (1) JPS63100961A (fr)
CN (1) CN1011765B (fr)
AU (1) AU576665B2 (fr)
BR (1) BR8606705A (fr)
CA (1) CA1270076A (fr)
ES (1) ES8800077A1 (fr)
FI (1) FI80834C (fr)
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WO1993004783A1 (fr) * 1991-08-28 1993-03-18 Commonwealth Scientific And Industrial Research Organisation Traitement de minerais
US9505011B1 (en) * 2015-12-28 2016-11-29 Chevron Phillips Chemical Company Lp Mixed decyl mercaptans compositions and use thereof as mining chemical collectors
US9512071B1 (en) 2015-12-28 2016-12-06 Chevron Phillips Chemical Company Lp Mixed decyl mercaptans compositions and methods of making same
US9512248B1 (en) 2015-12-28 2016-12-06 Chevron Phillips Chemical Company Lp Mixed decyl mercaptans compositions and use thereof as chain transfer agents
US10011564B2 (en) 2015-12-28 2018-07-03 Chevron Phillips Chemical Company Lp Mixed decyl mercaptans compositions and methods of making same
US10040758B2 (en) 2015-12-28 2018-08-07 Chevron Phillips Chemical Company Lp Mixed decyl mercaptans compositions and methods of making same
CN109731693A (zh) * 2019-01-28 2019-05-10 西安建筑科技大学 一种三聚硫氰酸饱和溶液硫化浮选铜铅锌氧化矿的方法
US10294200B2 (en) 2015-12-28 2019-05-21 Chevron Phillips Chemical Company, Lp Mixed branched eicosyl polysulfide compositions and methods of making same
CN115213016A (zh) * 2021-04-19 2022-10-21 郑州大学 一种氰化尾渣中硫化矿的浮选回收方法

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US4732667A (en) * 1985-02-20 1988-03-22 Berol Kemi Ab Process and composition for the froth flotation beneficiation of iron minerals from iron ores
ZM1386A1 (en) * 1985-07-12 1988-12-30 Dow Chemical Co Novel collector compositions for froth flotation
CA1268565A (fr) * 1985-11-29 1990-05-01 Richard R. Klimpel Compositions de captage pour la flottation sur mousse de minerais
RU2167001C2 (ru) * 1999-07-06 2001-05-20 ОАО "Норильский горно-металлургический комбинат им. А.П. Завенягина" Способ обогащения сульфидных медно-никелевых руд, содержащих металлы платиновой группы
RU2390382C2 (ru) * 2008-04-15 2010-05-27 Учреждение Российской академии наук Институт проблем комплексного освоения недр РАН (УРАН ИПКОН РАН) Способ извлечения цветных и благородных металлов
RU2368427C1 (ru) * 2008-04-15 2009-09-27 Институт проблем комплексного освоения недр РАН (ИПКОН РАН) Способ флотации благородных металлов
RU2393925C1 (ru) * 2008-11-19 2010-07-10 Александр Юрьевич Хмельник Способ флотационного разделения сульфидов, включающих благородные металлы из полиметаллических железосодержащих руд, и композиционный материал для его реализации
US9302273B2 (en) * 2011-10-18 2016-04-05 Cytec Technology Corp. Froth flotation processes
CN102631993A (zh) * 2012-03-20 2012-08-15 北京矿冶研究总院 一种浮选硫化铜矿的方法
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CN106179767B (zh) * 2016-09-23 2018-04-03 中南大学 一种1，3，4‑噁二唑‑2‑硫酮类浮选捕收剂的应用
CN108057525A (zh) * 2017-11-27 2018-05-22 西北矿冶研究院 一种用于低品位铜矿及铜钼矿提高伴生金的浮选捕收剂及其制备方法
CN108499723B (zh) * 2018-03-06 2020-12-15 昆明理工大学 一种含砷硫精矿除砷及资源综合利用方法
CN109622234B (zh) * 2018-11-16 2021-04-20 西北矿冶研究院 一种适用于尾矿分级再磨的硫化铜矿组合捕收剂
CN109550598B (zh) * 2018-11-21 2019-09-24 中南大学 一种烃氧基丙基硫脲在金属矿浮选中的应用
CN109365138B (zh) * 2018-11-30 2021-03-05 河南城建学院 一种用于硫化铜镍矿浮选的新型复合浮选剂
JP7299592B2 (ja) * 2019-11-05 2023-06-28 国立大学法人九州大学 選鉱方法
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CN111266195B (zh) * 2020-03-05 2021-09-07 中南大学 一种氧化锌矿浮选组合捕收剂及其应用
AU2021330290A1 (en) * 2020-08-27 2023-03-16 Japan Organization for Metals and Energy Security Method for selectively recovering arsenic-containing copper mineral, and flotation agent used in same
CN113369022B (zh) * 2021-06-08 2023-01-10 金川镍钴研究设计院有限责任公司 一种高钙镁型墨铜矿的选矿方法
CN113477393B (zh) * 2021-08-10 2022-10-28 南华大学 一种从含黄铁矿碳酸盐型铀矿石中浸出铀的方法
CN115254437A (zh) * 2022-07-04 2022-11-01 昆明冶金研究院有限公司 一种相界面调控实现含泥硫化铜钼矿低碱度浮选的方法
WO2024172017A1 (fr) * 2023-02-15 2024-08-22 住友化学株式会社 Agent de flottation et procédé de collecte de minéral de cuivre exempt d'arsenic
CN117259016B (zh) * 2023-10-31 2025-09-12 中南大学 浮选捕收剂及其制备方法、组合浮选药剂及其应用

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993004783A1 (fr) * 1991-08-28 1993-03-18 Commonwealth Scientific And Industrial Research Organisation Traitement de minerais
US9938237B2 (en) 2015-12-28 2018-04-10 Chevron Phillips Chemical Company Lp Mixed decyl mercaptans compositions and methods of making same
US10040758B2 (en) 2015-12-28 2018-08-07 Chevron Phillips Chemical Company Lp Mixed decyl mercaptans compositions and methods of making same
US9512248B1 (en) 2015-12-28 2016-12-06 Chevron Phillips Chemical Company Lp Mixed decyl mercaptans compositions and use thereof as chain transfer agents
US9631039B1 (en) 2015-12-28 2017-04-25 Chevron Phillips Chemical Company Lp Mixed decyl mercaptans compositions and use thereof as chain transfer agents
WO2017116542A1 (fr) * 2015-12-28 2017-07-06 Chevron Phillips Chemical Company Lp Compositions de décyle-mercaptans mélangées et leur utilisation en tant que collecteurs de produits chimiques d'extraction minière
US9738601B2 (en) 2015-12-28 2017-08-22 Chevron Phillips Chemical Company Lp Mixed decyl mercaptans compositions and methods of making same
US9512071B1 (en) 2015-12-28 2016-12-06 Chevron Phillips Chemical Company Lp Mixed decyl mercaptans compositions and methods of making same
US10000590B2 (en) 2015-12-28 2018-06-19 Chevron Phillips Chemical Company Lp Mixed decyl mercaptans compositions and use thereof as chain transfer agents
US9879102B2 (en) 2015-12-28 2018-01-30 Chevron Phillips Chemical Company Lp Mixed decyl mercaptans compositions and use thereof as chain transfer agents
US10011564B2 (en) 2015-12-28 2018-07-03 Chevron Phillips Chemical Company Lp Mixed decyl mercaptans compositions and methods of making same
US9505011B1 (en) * 2015-12-28 2016-11-29 Chevron Phillips Chemical Company Lp Mixed decyl mercaptans compositions and use thereof as mining chemical collectors
AU2016382447B2 (en) * 2015-12-28 2020-09-03 Chevron Phillips Chemical Company Lp Mixed decyl mercaptans compositions and use thereof as mining chemical collectors
US10294200B2 (en) 2015-12-28 2019-05-21 Chevron Phillips Chemical Company, Lp Mixed branched eicosyl polysulfide compositions and methods of making same
CN109731693A (zh) * 2019-01-28 2019-05-10 西安建筑科技大学 一种三聚硫氰酸饱和溶液硫化浮选铜铅锌氧化矿的方法
CN115213016A (zh) * 2021-04-19 2022-10-21 郑州大学 一种氰化尾渣中硫化矿的浮选回收方法

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FI80834B (fi) 1990-04-30
ZM1286A1 (en) 1988-12-30
PH23738A (en) 1989-11-03
PL147849B1 (en) 1989-08-31
AU576665B2 (en) 1988-09-01
AU5456486A (en) 1986-12-24
ZA861169B (en) 1987-10-28
FI870368A0 (fi) 1987-01-28
PL257991A1 (en) 1987-12-14
JPS63100961A (ja) 1988-05-06
RO100591B1 (en) 1992-01-28
ZW4086A1 (en) 1987-09-09
SE8700376D0 (sv) 1987-01-30
ES552027A0 (es) 1987-10-16
SU1582978A3 (ru) 1990-07-30
FI80834C (fi) 1990-08-10
SE500499C2 (sv) 1994-07-04
BR8606705A (pt) 1987-08-11
SE8700376L (sv) 1987-01-30
CN86101682A (zh) 1987-01-28
YU45768B (sh) 1992-07-20
ES8800077A1 (es) 1987-10-16
YU23286A (en) 1988-06-30
FI870368A7 (fi) 1987-01-28
CA1270076A (fr) 1990-06-05
CN1011765B (zh) 1991-02-27

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