CN102583408B - Method for utilizing ion implantation technology to modify serpentine - Google Patents
Method for utilizing ion implantation technology to modify serpentine Download PDFInfo
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- CN102583408B CN102583408B CN 201210075141 CN201210075141A CN102583408B CN 102583408 B CN102583408 B CN 102583408B CN 201210075141 CN201210075141 CN 201210075141 CN 201210075141 A CN201210075141 A CN 201210075141A CN 102583408 B CN102583408 B CN 102583408B
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Abstract
本发明涉及一种利用离子注入技术对蛇纹石进行改性的方法，属于物理技术材料改性技术领域。本发明的特点是将蛇纹石粉末放入离子注入机中，并对离子注入机的腔体进行抽真空，真空度要求为1×10-3-1×10-6Torr；以离子形式注入NH3，离子注入能量为30-60kev；注入通量为1×1017cm-2；注入时间为3-20min；最后将经离子注入后的样品取出，即获得有“N”元素注入的蛇纹石样品。The invention relates to a method for modifying serpentine by ion implantation technology, and belongs to the technical field of physical technology material modification. The feature of the present invention is that the serpentine powder is put into the ion implanter, and the cavity of the ion implanter is vacuumed, and the vacuum degree is required to be 1×10 -3 -1×10 -6 Torr; it is implanted in the form of ions NH 3 , the ion implantation energy is 30-60kev; the implantation flux is 1×10 17 cm -2 ; the implantation time is 3-20min; finally, the sample after ion implantation is taken out, and the snake implanted with "N" element is obtained Stone samples.
Description
Technical field
The present invention relates to a kind of ion implantation technique of utilizing to the method that serpentine carries out modification, belong to physical technique material modification technical field.
Background technology
China is one of big country that has serpentine mineral resource, serpentine (Mg
3[Si
2O
3] (OH)
4Or 3MgO2SiO
22H
2O) resource is very abundant, the mineral reserve enormous amount, and only the explored reserves in Anhui Province just have more than 1,000,000,000 tons.China's serpentine mineral resource distributes wide, and with Anhui, Jiangxi, Sichuan, Henan reserves maximum, ground such as Shandong, Jiangsu, Shaanxi, Inner Mongol take second place.Because serpentine ore has foliated lamellar or phosphorus tabular crystal, the differentiation layer is bigger, and China is strip mining transformation, produces a large amount of broken ores in recovery process, and granularity＜2～3cm is commonly referred to as serpentine fine ore or mine tailing, accounts for 1/3～1/2 of produced quantity.The fine ore of this granularity is unwell to fires fused(calcium magnesium)phosphate, often is taken as waste material and abandons, as the annual exploitation about 20 * 10 of Henan serpentine ore
4T, abandoned fine ore about 10 * 10
4T, fine ore accumulation has reached more than 200 ten thousand tons over 20 years, has not only wasted Mineral resources but also has long-pendingly accounted for production face and farmland, causes serious environmental to pollute, and influence is produced.
Before the nineties, the main application of serpentine is to produce fused(calcium magnesium)phosphate as flux and phosphorus ore by blast-furnace smelting and shrend technology.Because the national industry structural adjustment, the scale operation of new and effective phosphorus ammonia composite fertilizer has replaced fused(calcium magnesium)phosphate, thereby causes serpentine resource will become an abandoned mine.Although serpentine still can be used as the additive of refractory materials, malthoid filler, mineral manure and the flux of smelting, it does not almost have economic benefit.Therefore, the resource utilization of serpentine ore has been extremely urgent, and its comprehensive utilization awaits the appearance of new technology and novel process.
The kaolinite organic intercalation composition is as emerging mineral material, and the distinctive adsorptivity of its existing clay mineral, dispersiveness, rheological, porousness and surface acidity have changeable functional group and the reactive behavior of organic compound again.Its these excellent properties make it be widely used in fields such as catalyzer, sorbent material, functional materials, stupalith, nano composite material and environmental engineering materials.People such as Chen Jiebin study ultrasonic aid preparation kaolin/hydrazine intercalation composite material, with NH
2-NH
2(hydrazine) inserts in the kaolin, adopts infrared spectra (Fr-IR), X-ray diffraction (XRD), thermogravimetric analysis (TG) etc. that the structure of matrix material is characterized.The result shows: (1) utilizes ultrasonic aid preparation kaolin, and the hydrazine intercalation composite material has shortened the intercalation time greatly, and the time that originally needed tens hours even several days is shortened to 3-4h, has improved efficient greatly.(2) have littler particle diameter and narrower size distribution through the kaolin after the hydrazine intercalation processing, its form is more regular, improved stable, the even dispersive ability of particle to a certain extent, and interlamellar spacing becomes big behind the intercalation.
Summary of the invention
As emerging mineral material, organic intercalation can make mineral possess some special performances at existing kaolin organic intercalation composition, thereby enlarges the new purposes of mineral.The present invention adopts ion implantation technique with NH
3Be injected in the serpentine, change the performance of serpentine, thereby enlarge the purposes of serpentine.
A kind of ion implantation technique of utilizing of the present invention is characterized in that having following process and step to the method that serpentine carries out modification:
A, get a certain amount of serpentine sample, through pulverizing and ball milling, obtain particle diameter less than the serpentine breeze of 100 μ m; This serpentine powder is put into the cavity of ion implanter, and the cavity of ion implanter is vacuumized; It is 1 * 10 that vacuum tightness requires
-3-1 * 10
-6Torr;
B, inject NH with ionic species
3, ion implantation energy is 30-60 kev; Injecting flux is 1 * 10
17Cm
-2Injection length is 3-20min;
C, at last the sample after the injection of above-mentioned ion is taken out from ion implanter, obtain to be inserted with the serpentine sample of " N " element.
Mechanism of the present invention and characteristics:
The present invention utilizes ion implantation technique with NH
3Be inserted in the serpentine; Serpentine minerals belongs to oblique system, and lattice is laminate structure, i.e. the layer silicate mineral that is composited by silicon-oxy tetrahedron and hydrogen magnesium octahedron; Be ionic linkage in the layer, interlayer is molecular linkage, and the output form often is the fine and close ore deposit of phanerocrystalline-adiagnostic shape aggregate.With ion implantation technique with NH
3Be inserted in the serpentine, with hydrogen evolution N-H key in the hydrogen magnesium octahedron, make serpentine ore have high adsorptivity.The characteristics of this method are that cost is low, treatment process simply, environment is not caused secondary pollution, thereby arrive the effect of the new functionalization of mineral material, finally realize the purpose of mineral wealthization.
Embodiment
After now specific embodiments of the invention being described in.
Embodiment:
Get a certain amount of serpentine sample, through pulverizing and ball milling, obtain particle diameter less than the serpentine powder of 100 μ m; Take by weighing serpentine powdered sample 50g, put into the cavity of ion implanter, and begin to vacuumize; It is 1 * 10 that vacuum tightness requires
-6Torr.
Ionic species injects NH
3, ion implantation energy is 30 kev; Injection rate is 1 * 10
17Cm
-2Injection length is 5min.At last above-mentioned ion implantation sample is taken out from the cavity of ion implanter, be inserted with the serpentine sample of " N " element.
The test of absorption phosphorus:
The phosphorus that ion implantation serpentine sample is used for the absorption phosphorus-containing wastewater; The starting point concentration of phosphorus is 25mg/L in waste water, pH=6, and its clearance reaches 99%.Phosphorus content in the waste water＜0.5 mg/L has reached the primary standard of China's waste water comprehensive discharge.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210075141 CN102583408B (en) | 2012-03-21 | 2012-03-21 | Method for utilizing ion implantation technology to modify serpentine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210075141 CN102583408B (en) | 2012-03-21 | 2012-03-21 | Method for utilizing ion implantation technology to modify serpentine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102583408A CN102583408A (en) | 2012-07-18 |
| CN102583408B true CN102583408B (en) | 2013-09-04 |
Family
ID=46472771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210075141 Expired - Fee Related CN102583408B (en) | 2012-03-21 | 2012-03-21 | Method for utilizing ion implantation technology to modify serpentine |
Country Status (1)
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6472286B1 (en) * | 2000-08-09 | 2002-10-29 | Taiwan Semiconductor Manufacturing Company | Bipolar ESD protection structure |
-
2012
- 2012-03-21 CN CN 201210075141 patent/CN102583408B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6472286B1 (en) * | 2000-08-09 | 2002-10-29 | Taiwan Semiconductor Manufacturing Company | Bipolar ESD protection structure |
Non-Patent Citations (4)
| Title |
|---|
| 李世青等.蛇纹石石棉煅烧改性研究.《矿产综合利用》.2008,(第3期),第25-27页. |
| 李桂金等.蛇纹石粉体表面改性研究.《硅酸盐通报》.2008,第27卷(第6期),第1091-1095页. |
| 蛇纹石石棉煅烧改性研究;李世青等;《矿产综合利用》;20080630(第3期);第25-27页 * |
| 蛇纹石粉体表面改性研究;李桂金等;《硅酸盐通报》;20081231;第27卷(第6期);第1091-1095页 * |
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|---|---|
| CN102583408A (en) | 2012-07-18 |
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