CN104673099A - Method for producing polishing powder by utilizing kaolin - Google Patents
Method for producing polishing powder by utilizing kaolin Download PDFInfo
- Publication number
- CN104673099A CN104673099A CN201510072353.7A CN201510072353A CN104673099A CN 104673099 A CN104673099 A CN 104673099A CN 201510072353 A CN201510072353 A CN 201510072353A CN 104673099 A CN104673099 A CN 104673099A
- Authority
- CN
- China
- Prior art keywords
- powder
- kaolin
- ore pulp
- classification
- polishing powder
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/02—Polishing compositions containing abrasives or grinding agents
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention relates to the field of polishing powder preparation and particularly relates to a method for producing polishing powder by utilizing kaolin. The method comprises the steps of adding a whitening additive into soft kaolin ores, mixing, and then, carrying out primary calcination to obtain kaolin powder; adding water and a dispersing agent into the kaolin powder, finely grinding to form ore pulp, and grading; dehydrating and drying, namely dehydrating and drying the graded ore pulp; and carrying out secondary calcination, namely carrying out secondary calcination by adding aluminum hydroxide powder into the dried ore pulp powder to obtain the polishing powder. According to the method, powder with relatively-low hardness can be obtained after primary calcination, and then, the powder is finely ground by using a wet process, so that the energy consumption can be obtained; and then, the finely-ground powder is subjected to secondary calcination by adding aluminum hydroxide, so that pure spinel or mullite polishing powder can be obtained.
Description
Technical field
The present invention relates to polishing powder preparation field, is a kind of method utilizing producing polishing powder from kaolin specifically.
Background technology
Polishing powder is mainly used in the polishing of the article of the glossy requirements such as jewel, opticglass, artistic glass, TV and graphoscope, medicine equipment and component of machine.Its effect body is by the absorption between polished die and polished part and grinding, improves the smooth finish of surface to be machined, is mainly used in the polishing of workpiece fine grinding.Polishing powder is made up of metal oxide components such as cerium oxide, aluminum oxide, silicon oxide, ferric oxide, zirconium white, chromic oxide usually.And since the eighties, coal series kaolinite is found in a large number, it is as a kind of raw material of very important ceramic, and the physicals by means of its excellence occupies very important status always.And because the quality of coal series kaolinite is high, detrimental impurity is few, makes it become desirable feedstock.But only have the enterprise of only a few to produce qualified product at present, most of enterprise is due to aspects such as raw material, technique and equipment, and quality product and product cost are always unsatisfactory.
Summary of the invention
For above-mentioned technical problem, the invention provides a kind of rational technology, the method utilizing producing polishing powder from kaolin that the quality product of production is high.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of method utilizing producing polishing powder from kaolin, and it comprises the following steps:
(1) once calcine, once calcine after adding improver mixing to soft kaolin ore deposit, obtain kaolin powder;
(2) fine grinding classification, adds water in kaolin powder and dispersion agent is finely ground into ore pulp and classification;
(3) dewatered drying, dries the pulp dewatering after classification;
(4) secondary clacining, adds aluminium-hydroxide powder and carries out secondary clacining, obtain polishing powder in the ore pulp powder after oven dry.
As preferably, a described calcining temperature is 400 ~ 800 DEG C.
As preferably, described dispersion agent adopts glyceryl monostearate.
As preferably, the mass ratio of dispersion agent and kaolin powder is 2 ~ 2.5:1000
As preferably, the ore pulp size of powder particles after classification is 3 ~ 5 μm.
As preferably, described secondary clacining temperature is 1200 ~ 1400 DEG C.
As preferably, described improver accounts for 1 ~ 3% of total mass.
As preferably, described improver is mixed by cleaned coal, sodium sulfate and sodium-chlor and forms.
As preferably, described cleaned coal: sodium sulfate: the mass ratio of sodium-chlor is 10: 0.3: 0.2.
As preferably, the mass ratio of described ore pulp powder and aluminium hydroxide is 100: 23.4 or 100:140.5.
As can be known from the above technical solutions, the present invention can obtain the lower powder of hardness after adopting once calcining, then carries out wet method fine grinding to powder, can reduce energy consumption; Then aluminium hydroxide is added to the powder after fine grinding and carry out secondary clacining, pure spinel or mullite polishing powder can be obtained.
Embodiment
Introduce the method for production polishing powder of the present invention in detail below in conjunction with embodiment, it comprises the following steps:
Once calcine, once calcine after adding improver mixing to soft kaolin ore deposit, the whiteness of product can be improved, improver accounts for 1 ~ 3% of total mass, temperature is 400 ~ 800 DEG C, and improver is mixed by cleaned coal, sodium sulfate and sodium-chlor and forms, and cleaned coal: sodium sulfate: the mass ratio of sodium-chlor is 10: 0.3: 0.2, can remove water of constitution like this, the powder obtained is metakaolin.
Fine grinding classification, adopts wet method to be finely ground into ore pulp kaolin powder, adds water and dispersion agent during fine grinding, and dispersion agent adopts glyceryl monostearate, and the mass ratio of dispersion agent and kaolinite powder is advisable with 2 ~ 2.5:1000; After fine grinding, ore pulp adopts centrifugal classification, gets particle diameter 3 ~ 5 μm of pulp dewaterings to dry; Due to the burning of organic, fixed carbon and volatilization and the mechanical loss in a calcination process, fine grinding process materials can reduce, and the fine grinding process process that to be a consumed energy more; Due to the minimizing of handled thing doses, reduce energy expenditure from a side.Material after fine grinding is easy to dry dispersion, due to the viscous properties of kaolin self, material is caused to be difficult to after fine grinding be reduced into dry state powder before burning, such material is as easy as rolling off a log in calcination process becomes sintering by bonding originally, particularly when mineral content meltable in material is higher, sintering situation is even more serious, and pole is unfavorable for the dispersion of burning rear material, still needs with ultra-fine equipment ultra-fine once again after thus burning; And after fine grinding process is placed in calcination process, then can avoid this situation; This is because calcined kaolin self no longer has cohesiveness, very easily disperse after oven dry.
Secondary clacining, add aluminium-hydroxide powder and carry out secondary clacining in the ore pulp powder after drying, calcining temperature is 1200 ~ 1400 DEG C, and the mass ratio of ore pulp powder and aluminium hydroxide is 100: 23.4 or 100:140.5; When employing 100: 23.4, aluminium and silicon, in calcination process complete reaction, all generate spinel polishing powder; When employing 100: 140.5, aluminium and silicon, in calcination process complete reaction, all generate mullite polishing powder.
Embodiment 1
The improver that the cleaned coal, sodium sulfate, the sodium-chlor that are 10: 0.3: 0.21 by mass ratio that add 1% in soft kaolin ore deposit form once calcines 1.5h, calcining temperature is 400 ~ 500 DEG C, then the glyceryl monostearate fine grinding of water and 0.2% is added, then centrifugal classification is carried out, get particle diameter 3 μm of pulp dewaterings and dry, add again ore pulp powder and aluminium hydroxide mass ratio be 100: 23.4 aluminium hydroxide carry out secondary clacining, calcining temperature is 1200 DEG C, time 3h, finally obtains the pure spinel polishing powder that whiteness reaches more than 95.
Embodiment 2
The improver that the cleaned coal, sodium sulfate, the sodium-chlor that are 10: 0.3: 0.21 by mass ratio that add 2% in soft kaolin ore deposit form once calcines 1h, calcining temperature is 600 DEG C, then the glyceryl monostearate fine grinding of water and 0.25% is added, then centrifugal classification is carried out, get particle diameter 4 μm of pulp dewaterings and dry, add again ore pulp powder and aluminium hydroxide mass ratio be 100: 23.4 aluminium hydroxide carry out secondary clacining, calcining temperature is 1300 DEG C, time 2.5h, finally obtains the pure spinel polishing powder that whiteness reaches more than 95.
Embodiment 3
The improver that the cleaned coal, sodium sulfate, the sodium-chlor that are 10: 0.3: 0.21 by mass ratio that add 3% in soft kaolin ore deposit form once calcines 1h, calcining temperature is 800 DEG C, then the glyceryl monostearate fine grinding of water and 0.25% is added, then centrifugal classification is carried out, get particle diameter 5 μm of pulp dewaterings and dry, add again ore pulp powder and aluminium hydroxide mass ratio be 100: 140.5 aluminium hydroxide carry out secondary clacining, calcining temperature is 1400 DEG C, time 2h, finally obtains the pure mullite polishing powder that whiteness reaches more than 95.
Above-mentioned embodiment is used for illustrative purposes only, and be not limitation of the present invention, the those of ordinary skill of relevant technical field, without departing from the spirit and scope of the present invention, can also make various change and modification, therefore all equivalent technical schemes also should belong to category of the present invention.
Claims (10)
1. utilize a method for producing polishing powder from kaolin, it comprises the following steps:
(1) once calcine, once calcine after adding improver mixing to soft kaolin ore deposit, obtain kaolin powder;
(2) fine grinding classification, adds water in kaolin powder and dispersion agent is finely ground into ore pulp and classification;
(3) dewatered drying, dries the pulp dewatering after classification;
(4) secondary clacining, adds aluminium-hydroxide powder and carries out secondary clacining, obtain polishing powder in the ore pulp powder after oven dry.
2. method according to claim 1, is characterized in that: a described calcining temperature is 400 ~ 800 DEG C.
3. method according to claim 1, is characterized in that: described dispersion agent adopts glyceryl monostearate.
4. method according to claim 3, is characterized in that: the mass ratio of dispersion agent and kaolin powder is 2 ~ 2.5:1000.
5. method according to claim 1, is characterized in that: the ore pulp size of powder particles after classification is 3 ~ 5 μm.
6. method according to claim 1, is characterized in that: described secondary clacining temperature is 1200 ~ 1400 DEG C.
7. method according to claim 1, is characterized in that: described improver accounts for 1 ~ 3% of total mass.
8. method according to claim 7, is characterized in that: described improver is mixed by cleaned coal, sodium sulfate and sodium-chlor and forms.
9. method according to claim 8, is characterized in that: described cleaned coal: sodium sulfate: the mass ratio of sodium-chlor is 10: 0.3: 0.2.
10. method according to claim 1, is characterized in that: the mass ratio of described ore pulp powder and aluminium hydroxide is 100: 23.4 or 100:140.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510072353.7A CN104673099A (en) | 2015-02-12 | 2015-02-12 | Method for producing polishing powder by utilizing kaolin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510072353.7A CN104673099A (en) | 2015-02-12 | 2015-02-12 | Method for producing polishing powder by utilizing kaolin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104673099A true CN104673099A (en) | 2015-06-03 |
Family
ID=53308708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510072353.7A Pending CN104673099A (en) | 2015-02-12 | 2015-02-12 | Method for producing polishing powder by utilizing kaolin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104673099A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186783A (en) * | 2007-12-11 | 2008-05-28 | 河南理工大学 | Method for producing polishing powder from kaolin |
| CN102862995A (en) * | 2012-10-11 | 2013-01-09 | 唐山麦迪逊高岭土有限公司 | Preparation method of calcined kaolin with low abrasion value |
| CN104310416A (en) * | 2014-09-26 | 2015-01-28 | 浙江鸿延矿业科技有限公司 | Method for preparing high-brightness superfine calcined kaolin |
-
2015
- 2015-02-12 CN CN201510072353.7A patent/CN104673099A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186783A (en) * | 2007-12-11 | 2008-05-28 | 河南理工大学 | Method for producing polishing powder from kaolin |
| CN102862995A (en) * | 2012-10-11 | 2013-01-09 | 唐山麦迪逊高岭土有限公司 | Preparation method of calcined kaolin with low abrasion value |
| CN104310416A (en) * | 2014-09-26 | 2015-01-28 | 浙江鸿延矿业科技有限公司 | Method for preparing high-brightness superfine calcined kaolin |
Non-Patent Citations (1)
| Title |
|---|
| 汤红伟: "高岭土生产抛光粉的技术研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2036958B1 (en) | Process for producing kaolin product for paper coating | |
| CN109279615B (en) | A kind of preparation method of the high whiteness calcination of talc of low cost | |
| CN110577225B (en) | Preparation method of high-whiteness calcined kaolin with ultrahigh oil absorption | |
| CN101921101B (en) | Production technology of zircon-alumina composite ceramic bead | |
| CN110483010A (en) | A kind of processability is good, high-strength large size ceramic plate and preparation method thereof | |
| CN113400442B (en) | Method for manufacturing glazed tile by using solid powder | |
| CN107935007A (en) | The method that after baking prepares alumina with high temperature and low sodium | |
| CN110589844A (en) | High-whiteness wollastonite powder and preparation method thereof | |
| CN106395839B (en) | A kind of technique preparing electrophoretic paint calcined kaolin with gangue | |
| CN102303890A (en) | Production process for converting gray black barite into white barite finished product | |
| CN107805043B (en) | Method for preparing kaolin for medium-high grade ceramics from fine tailings and poor-quality kaolin | |
| CN109824340A (en) | A kind of processing technology of abrasive media | |
| CN102604438B (en) | Iron oxide yellow pigment with low oil absorption | |
| CN102491356B (en) | Preparation method of calcined kaolin with high oil absorption | |
| CN108102433B (en) | Method for preparing high-thermal stability clay mineral-iron red hybrid pigment by utilizing coprecipitation technology | |
| CN109748286A (en) | High whiteness high oil absorption value calcined kaolin and preparation method thereof | |
| CN108298964A (en) | High-purity fine grain wear-resisting alumina liner plate and preparation method thereof | |
| CN110330309B (en) | High-whiteness kaolin and preparation method and application thereof | |
| CN104673099A (en) | Method for producing polishing powder by utilizing kaolin | |
| CN101186783A (en) | Method for producing polishing powder from kaolin | |
| CN104446500B (en) | Compound ceramic nozzle of a kind of boron nitride/silicon powder and preparation method thereof | |
| CN103468206B (en) | Ultrafine grinding media for calcium carbonate powder and preparation method of ultrafine grinding media | |
| CN108046783B (en) | Cordierite-corundum hollow sphere sagger, preparation method and application thereof | |
| CN103360030A (en) | Method for producing high-plasticity ceramic kaolin (ball clay) by mine surface soil | |
| CN109455750A (en) | A kind of modified abrasive light calcium and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150603 |
|
| RJ01 | Rejection of invention patent application after publication |