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WO1998030512A1 - Liant inorganique - Google Patents

Liant inorganique Download PDF

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Publication number
WO1998030512A1
WO1998030512A1 PCT/EP1998/000042 EP9800042W WO9830512A1 WO 1998030512 A1 WO1998030512 A1 WO 1998030512A1 EP 9800042 W EP9800042 W EP 9800042W WO 9830512 A1 WO9830512 A1 WO 9830512A1
Authority
WO
WIPO (PCT)
Prior art keywords
binder according
binder
esp
production
marl
Prior art date
Application number
PCT/EP1998/000042
Other languages
German (de)
English (en)
Inventor
Jürgen KEPPNER
Alfred Lehnen
Original Assignee
Deutsche Rockwool Mineralwoll-Gmbh
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 Deutsche Rockwool Mineralwoll-Gmbh filed Critical Deutsche Rockwool Mineralwoll-Gmbh
Priority to AU57657/98A priority Critical patent/AU5765798A/en
Publication of WO1998030512A1 publication Critical patent/WO1998030512A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/32—Aluminous cements
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • C03C1/02—Pretreated ingredients
    • C03C1/026—Pelletisation or prereacting of powdered raw materials
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C13/00—Fibre or filament compositions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C13/00—Fibre or filament compositions
    • C03C13/06—Mineral fibres, e.g. slag wool, mineral wool, rock wool
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2213/00—Glass fibres or filaments
    • C03C2213/02—Biodegradable glass fibres

Definitions

  • the invention relates to a binder for the production, in particular solidification, of shaped bodies which serve as a raw material for the production of artificial mineral fibers.
  • artificial mineral fibers for example fiber insulation materials for sound and heat insulation
  • natural or artificial rock is used as starting products.
  • This rock is melted in an oven and then fed as a melt to a fiberizing device, so that the melt can be deposited in the form of fibers on a conveyor belt, which conveyor belt feeds the fibers to various processing stations, such as compression stations, cutting stations or the like.
  • the fibers are placed on the conveyor belt in such a way that, for example, an endless mineral fiber mat is created.
  • stones are used as primary raw materials, with artificial stones being increasingly used, which are produced from production residues and / or recycling products. For this, the production backlogs and / or recycling backlogs are processed, i.e. crushed and shaped as artificial stones.
  • binders for example a mixture of calcined bauxite and cement being mixed to produce secondary raw materials from recycled materials. to shape cling processes as well as internal production residues in a pelletizing process to artificial stones.
  • this known binder is particularly well suited for pelleting processes, it is not particularly suitable for briquetting processes which are intended in particular in the production of artificial stones of larger dimensions.
  • the invention is based on the objective of creating a generic binder which is suitable both for pelleting and for briquetting molded bodies which serve as a melt raw material for the production of synthetic mineral fibers.
  • the binder i.a. consists of raw bauxite and marl sintered in a furnace, preferably a shaft or rotary tube furnace and then ground, as starting materials.
  • Such a binder has the advantage that the mixture of raw bauxite and marl enables the briquetting of raw materials and residues for the manufacturing process of mineral wool production. Residues are both internal production residues and external residues, so-called secondary raw materials, which are generated by recycling dismantled mineral fibers.
  • the raw material base for the binder according to the invention are bauxite, clays, other alumina carriers, lime, dolomite, marl and white tere suitable secondary raw materials are provided.
  • the advantages of this binder according to the invention are in particular the reduction in the use of briquettes, the substitution of the cement by up to 100% with this binder and the partial substitution of the calcined bauxite by more than 40%.
  • the binder according to the invention has the advantage that emissions of S0 2 and H 2 S are significantly reduced both in its manufacture and in its intended use, so that the costs for the desulfurization of the exhaust gases produced in this process can also be significantly reduced.
  • This binder is particularly suitable for bio-lent fibers which are advantageous in terms of their further processing in the melting process described at the beginning and their processing on construction sites with regard to substances which are hazardous to health.
  • the production of the artificial stones with the binder according to the invention is considerably more economical than the previous procedures.
  • the binder according to the invention is suitable for processing residual materials from steelworks, foundries, glass factories, thermal power plants and / or garbage incineration plants.
  • the bauxite and marl have Starting materials have a BLAINE value of more than 3000 cm 2 / g after they have been ground. This BLAINE value has been shown to be advantageous for the briquetting of the moldings, the cement used in the prior art being able to be completely replaced and the calcined bauxite used being partially replaced.
  • the ratio A1 2 0 3 to CaO is in the range between 0.5 and 1.8, preferably between 0.8 and 1.65.
  • the melting point of the binder is preferably about 1,300 ° C.
  • Ti0 2 0.1 - 4 preferably ⁇ 3
  • MgO 0 - 5 preferably ⁇ 4
  • this binder is particularly suitable for briquette-shaped articles.
  • the shaped bodies are preferably formed from raw materials and / or residues for the production process of mineral wool production, the residues being designed in particular as recycling stocks.
  • the binder according to the invention is characterized in particular by its high A1 2 0 3 content.
  • the result of an X-ray diffractometric phase examination of the binder according to the invention is shown in the table below.
  • the phase distribution of the binder in silicate chemical notation shows a CA portion that is mainly responsible for the rapid hydration, which is twice as high as that of the known binders.
  • CA 2 responsible for slow hydration.
  • all other identified phases recede quantitatively. Brown millerite and pleochroit are no longer detectable in the binder according to the invention.
  • REPLACEMENT BLADE (RULE 26) with approximately the same position of the maximum in the rough range, a shift of the maximum in the fine range to higher values for the binder according to the invention.
  • a maximum limit of 8% residue on a 0.09 mm screen fabric is reached with a measured residue of 0.2%.
  • FIG. 1 The grain size analysis of the binder according to the invention in comparison with a known binder and Portland cement is shown in FIG. 1, the solid line representing the particle size distribution in the binder according to the invention, the dashed line representing a known binder and the dotted line Portland cement.
  • FIG. 2 shows the grain size analysis according to FIG. 1 as a bar chart for the binder according to the invention.
  • the binder according to the invention is particularly suitable for the production of moldings in the course of a briquetting process.
  • the composition of the binder according to the invention means that a higher degree of stiffness can be achieved after a shorter time than known binders or Portland cement. This behavior is of particular advantage for the production of shaped stones in the field of mineral wool production.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

L'invention concerne un liant s'utilisant pour préparer, notamment pour solidifier des corps de moulage qui servent de matière première en fusion pour produire des fibres minérales synthétiques. Afin de créer un liant de ce type, convenant aussi bien au pastillage qu'à l'agglomération de corps de moulage qui servent de matière première en fusion pour produire des fibres minérales synthétiques, il est prévu que le liant se compose de marne et de bauxite brute frittée dans un four, de préférence un four vertical ou un four tubulaire rotatif, puis moulue.
PCT/EP1998/000042 1997-01-11 1998-01-07 Liant inorganique WO1998030512A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU57657/98A AU5765798A (en) 1997-01-11 1998-01-07 Inorganic binder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19700744.9 1997-01-11
DE19700744 1997-01-11

Publications (1)

Publication Number Publication Date
WO1998030512A1 true WO1998030512A1 (fr) 1998-07-16

Family

ID=7817173

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/000042 WO1998030512A1 (fr) 1997-01-11 1998-01-07 Liant inorganique

Country Status (3)

Country Link
AU (1) AU5765798A (fr)
DE (1) DE19800409A1 (fr)
WO (1) WO1998030512A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000076929A1 (fr) * 1999-06-10 2000-12-21 Rockwool International A/S Briquettes, leur utilisation dans la fabrication de fibres minerales et leur production

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB233698A (en) * 1924-05-06 1926-06-17 Urbain Bellony Voisin Process for the manufacture of an aluminous cement of high initial strength
US3194673A (en) * 1961-08-29 1965-07-13 Licencia Talalmanyokat Hydraulic cement and process for making same
US3257219A (en) * 1962-11-01 1966-06-21 Klein Alexander High-alumina cement
CA1132759A (fr) * 1979-05-30 1982-10-05 Ivan A. Semchenko Melange servant a la fabrication de clinkers
JPH01192743A (ja) * 1988-01-27 1989-08-02 Nippon Steel Chem Co Ltd ブリケット及びロックウールの製造方法
EP0819660A1 (fr) * 1996-07-17 1998-01-21 ITALCEMENTI S.p.A. Ciment à prise rapide contenant du clinker à base de calcium fluoraluminate mélangé avec la chaux

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB233698A (en) * 1924-05-06 1926-06-17 Urbain Bellony Voisin Process for the manufacture of an aluminous cement of high initial strength
US3194673A (en) * 1961-08-29 1965-07-13 Licencia Talalmanyokat Hydraulic cement and process for making same
US3257219A (en) * 1962-11-01 1966-06-21 Klein Alexander High-alumina cement
CA1132759A (fr) * 1979-05-30 1982-10-05 Ivan A. Semchenko Melange servant a la fabrication de clinkers
JPH01192743A (ja) * 1988-01-27 1989-08-02 Nippon Steel Chem Co Ltd ブリケット及びロックウールの製造方法
EP0819660A1 (fr) * 1996-07-17 1998-01-21 ITALCEMENTI S.p.A. Ciment à prise rapide contenant du clinker à base de calcium fluoraluminate mélangé avec la chaux

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 67, no. 22, 27 November 1967, Columbus, Ohio, US; abstract no. 102548, S.STRASZAK ET AL: "cement clinker" XP002061451 *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 487 (C - 649) 6 November 1989 (1989-11-06) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000076929A1 (fr) * 1999-06-10 2000-12-21 Rockwool International A/S Briquettes, leur utilisation dans la fabrication de fibres minerales et leur production

Also Published As

Publication number Publication date
DE19800409A1 (de) 1998-07-16
AU5765798A (en) 1998-08-03

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