CN101186783A - Method for producing polishing powder from kaolin - Google Patents
Method for producing polishing powder from kaolin Download PDFInfo
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- CN101186783A CN101186783A CNA2007103000431A CN200710300043A CN101186783A CN 101186783 A CN101186783 A CN 101186783A CN A2007103000431 A CNA2007103000431 A CN A2007103000431A CN 200710300043 A CN200710300043 A CN 200710300043A CN 101186783 A CN101186783 A CN 101186783A
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- polishing
- kaolin
- polishing powder
- classification
- powder
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Abstract
A process for utilizing and manufacturing polishing powder belongs to the technical field of preparing polishing materials. Provided is a technique for preparing polishing powder by employing the kaolin as raw material. The kaolin is processed via grinding and classification, which enables the maximum particle size of mineral powder to be controlled to be less than 5 micrometers, and further the kaolin is dehydrated, dried and calcined, and then the polishing powder is formed. The kaolin polishing powder manufactured according to the production method of the invention achieves the VI standard scale of the national standard in the aspect of the polishing effect of optical glass, which can meet the need of the polishing of the optical glass, the invention is capable of polishing various materials with polishing rigidity less than 7.0, also capable of mixing the kaolin polishing powder and resin to make polishing blocks which are used in the polishing of stone materials, such as marble, granite and the like.
Description
One, affiliated technical field
Using the method for producing polishing powder from kaolin, belong to the preparing technical field of polishing material, is a kind of technology of utilizing kaolin to prepare polishing powder for starting material.
Two, background technology
Polishing powder mainly is used as the polishing of the article of glossy degree requirements such as jewel, opticglass, artistic glass, TV and graphoscope, medicine equipment and component of machine.At present, polishing powder raw material commonly used mainly is chromic oxide and cerium oxide, and the market price of chromic oxide is 2.0 ten thousand yuan/ton, and the market price of cerium oxide is 2.0～6.0 ten thousand yuan/ton, and product price is relatively more expensive, has limited its use; And existing polishing powder contains heavy metal element more, and the shop floor worker health is had certain injury, and environment is had more serious pollution.
Three, summary of the invention
The technology that the purpose of this invention is to provide a kind of low cost production polishing powder, and the polishing powder compliance with environmental protection requirements of producing.
Use the method for producing polishing powder from kaolin, kaolin is carried out ore grinding and classification processing, the breeze maximum particle diameter is controlled at below the 5 μ m, then it is calcined, form polishing powder; Kaolin is carried out ore grinding and classification processing, and kaolin ore pulp concentration is 3%～5% during centrifugal classification, and dispersion agent operating weight proportioning is 1: 2 sodium polyacrylate and a Sodium hexametaphosphate 99 mixture, and dispersant dosage is 3 ‰ of an ore pulp weight; Ore pulp after the classification is dewatered and dries processing, in weak oxide-weakly reducing atmosphere, the kaolin breeze after the classification is calcined 950 ℃～1150 ℃ of calcining temperatures, calcination time 2～4 hours then.
The kaolin polishing powder of producing according to production method of the present invention, polishing effect to opticglass has reached National Standard GB1185-74 standard-optical element surface spots " regulation the VI grade standard, can satisfy the needs of opticglass polishing, can polish hardness less than 7.0 various materials, also can kaolin polishing powder and resin that produce is mixing, make poliss, be used for the polishing of stone materials such as marble, grouan.
Four, embodiment
Embodiment 1, use the method for producing polishing powder from kaolin, kaolin carried out ore grinding and classification processing, maximum particle diameter is controlled at below the 5 μ m, then to its dewater, dry and calcining, form polishing powder; (1) controls kaolinic granularity: mainly be ore grinding and classification, ore grinding can adopt wet method to stir mill, classification can be selected tubular-bowl centrifuge for use, and when kaolin was carried out classification, the rotating speed of tubular-bowl centrifuge was controlled at 24000～30000 rev/mins, can remove the particle of particle diameter greater than 5 μ m this moment, when using the whizzer classification, pulp density is 3%～5%, and the ore pulp dispersion agent uses the mixture of sodium polyacrylate and Sodium hexametaphosphate 99, its weight proportion is 1: 2, and its consumption is 3 ‰ of an ore pulp weight; (2) calcining: in weak oxide-weakly reducing atmosphere it is calcined, calcining temperature is 950 ℃～1150 ℃, calcination time 2～4 hours, and this moment, the essential mineral of polishing powder was andaluzite and sillimanite mutually.
Polishing powder mainly is used as the polishing of the article of glossy degree requirements such as jewel, opticglass, artistic glass, TV and graphoscope, medicine equipment and component of machine.
Claims (1)
1. use the method for producing polishing powder from kaolin, kaolin is carried out ore grinding and classification processing, maximum particle diameter is controlled at below the 5 μ m, then it is calcined, form polishing powder, it is characterized in that: kaolin carries out ore grinding and classification processing, and pulp density is 3%～5% during centrifugal classification, dispersion agent operating weight proportioning is 1: 2 sodium polyacrylate and a Sodium hexametaphosphate 99 mixture, and dispersant dosage is 3 ‰ of an ore pulp weight; Ore pulp after the classification is dewatered and dries processing, in weak oxide-weakly reducing atmosphere, the kaolin breeze after the classification is calcined 950 ℃～1150 ℃ of calcining temperatures, calcination time 2～4 hours then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103000431A CN101186783A (en) | 2007-12-11 | 2007-12-11 | Method for producing polishing powder from kaolin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103000431A CN101186783A (en) | 2007-12-11 | 2007-12-11 | Method for producing polishing powder from kaolin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101186783A true CN101186783A (en) | 2008-05-28 |
Family
ID=39479411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007103000431A Pending CN101186783A (en) | 2007-12-11 | 2007-12-11 | Method for producing polishing powder from kaolin |
Country Status (1)
| Country | Link |
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| CN (1) | CN101186783A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102898953A (en) * | 2012-10-31 | 2013-01-30 | 上海华明高纳稀土新材料有限公司 | Cerium-based mischmetal polishing material and preparation method thereof |
| CN101671525B (en) * | 2009-09-01 | 2013-04-10 | 湖南皓志新材料股份有限公司 | Method for improving suspension property of rare earth polishing powder |
| CN103952083A (en) * | 2014-04-09 | 2014-07-30 | 贵州亿科新材料有限公司 | Method for producing polishing powder by hard kaolin |
| CN104673099A (en) * | 2015-02-12 | 2015-06-03 | 柳州豪祥特科技有限公司 | Method for producing polishing powder by utilizing kaolin |
-
2007
- 2007-12-11 CN CNA2007103000431A patent/CN101186783A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671525B (en) * | 2009-09-01 | 2013-04-10 | 湖南皓志新材料股份有限公司 | Method for improving suspension property of rare earth polishing powder |
| CN102898953A (en) * | 2012-10-31 | 2013-01-30 | 上海华明高纳稀土新材料有限公司 | Cerium-based mischmetal polishing material and preparation method thereof |
| CN103952083A (en) * | 2014-04-09 | 2014-07-30 | 贵州亿科新材料有限公司 | Method for producing polishing powder by hard kaolin |
| CN103952083B (en) * | 2014-04-09 | 2016-04-27 | 贵州亿科新材料有限公司 | A kind of hard kaoline produces the method for polishing powder |
| CN104673099A (en) * | 2015-02-12 | 2015-06-03 | 柳州豪祥特科技有限公司 | Method for producing polishing powder by utilizing kaolin |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080528 |