CN1138558A - Method for preparing F for anti-corrosion in mfg. process of supermicro barite powder - Google Patents
Method for preparing F for anti-corrosion in mfg. process of supermicro barite powder Download PDFInfo
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- CN1138558A CN1138558A CN 95106400 CN95106400A CN1138558A CN 1138558 A CN1138558 A CN 1138558A CN 95106400 CN95106400 CN 95106400 CN 95106400 A CN95106400 A CN 95106400A CN 1138558 A CN1138558 A CN 1138558A
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- acid
- liters
- corrosion
- lump ore
- water
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Abstract
A fluorine-corrosion-inhibiting method for preparing super-grade ultramicron barite powder with high purity and whiteness, and ultramicron granularity and used for paint, plastics and rubber includes such steps as selecting ore, crushing, addition of acid to remove impurities, washing and drying. During removing impurities, industrial boric acid and hydrochloric acid are added and the resulting mixture is heated to 100+/-5 deg.C while stirred for 40 min. Hydrofluoric acid is not generated with effective prevention of corrosion and removing impurities.
Description
The invention belongs to the anticorrosion new technology of system fluorine in the superfine powder manufacturing process of ultra micro barite.
At present, ultra micro barite purity, whiteness and ultra micro particle diameter in process of production is difficult to improve, this product is to be used for industrial sectors such as colored paint, plastics, rubber, coating, printing ink, makeup, and the good and bad quality product that directly influences its Application Areas of its quality contains fluorite (CaF more in the barite deposit
2) impurity, existing production technique easily forms hydrofluoric acid in use and produces corrosion, influences the bar quality of ultra micro.
The object of the present invention is to provide a kind of hydrofluoric acid, and effective method of removal of contamination, raising ground barium sulfate quality of not producing.
The objective of the invention is to finish in the following way:
This production technique is as follows:
1. by the workman 10cm lump ore is carried out picking in the stock ground and reject impurity;
2. in machine mixer, add water, the dregs impurity on the flushing lump ore;
3. be broken for 325 order powders through jaw crusher and Raymond machine, with 44 μ m by being as the criterion;
4. with 2000 liters in water, 2200 kilograms of 325 order breezes, industrial boric acid (H
3BO
3) 60 kilograms, technical hydrochloric acid 220 liters (d1.19) heat to 100 ± 5 ℃ in 3000 liters of reactors, stirred 40 minutes;
5. at 10m
3Add that water washs in jar, stirring, sedimentation, get rid of acid-bearing wastewater and return the washing lump ore, repeatedly several times to solution ph 6～7, Fe
3+To CNS
-Reaction does not take on a red color;
6. pump into plate-and-frame filter press, remove moisture to slurry with air compressor machine and become cake;
7. belt is carried;
8. in the rotation rapid dryer, make powder drying;
9. with micronizer mill powder is broken for d50＜1.0 μ m;
10. packed sealing weather-proof dressing, warehouse-in.
The present invention has following advantage:
Can be used for containing fluorite (CaF
2) wait the barite deposit of impurity to make in the production technique of super-fine powder, in reaction process, can not produce hydrofluoric acid and reach system fluorine rot-resistant purpose, and can effectively remove impurity, Ba (Sr) SO in the sour bleaching powder body
4Content and R457 mark whiteness significantly improve, and this powder can also make the efficient of ultra micro comminution by gas stream be improved.
When adding hydrochloric acid and industrial boric acid, the chemical reaction of removing impurity is:
BF
3Be lewis' acid, dissociablely in the aqueous solution go out proton
Here M represents divalent metal (as Ca
2+, Mg
2+, Fe
2+Deng), all chemical reaction does not have the HF generation, thus can not produce corrosion to the lass lining on the reactor, thus reaching the rot-resistant purpose, acid is floated can be with the detrimental impurity full scale clearance.
Attached: superfine powder of ultra micro barite and part technological standard control case
| Index | Superfine powder | Process white one-level GB2899-82 | NO1 filler ISO-3262b level (senior) | The fine ground barium sulfate in Hubei |
| Ba(Sr)SO 4(％) | 99.6 | |||
| BaSO wherein 4(％) | 98.1 | 98.0 | 90 | 96 |
| SiO 2(％) | ＜0.3 | Not inspection | ||
| Fe 2O 3(％) | ＜0.01 | ＜0.01 | ||
| Al 2O 3(％) | ＜0.05 | Not inspection | ||
| Water-soluble salt (%) | ＜0.1 | ≤0.2 | 0.5 | 0.35 |
| Salt acid-soluble material (%) | ＜0.1 | (acetate)≤0.6 | ||
| Moisture content (%) | ＜0.1 | ≤0.02 | 0.5 | 0.35 |
| The suspension pH value | 6-8 | 6.5-8.0 | 6-10 | 6.5 |
| Meta particle diameter (μ m) | ＜1.0 | Fineness≤2 μ m 25.0% | Fineness≤2 μ m20.0% | Fineness≤2 μ 25.0% |
| Whiteness (R457 mark) | ＞95 | ～94 | ～85 | 88.3；89.0 |
| Oil number (%) | 15-20 | 15-25 | 8-15 | 11 |
Claims (1)
1. the system fluorine anti-corrosion method in the superfine powder manufacturing process of a ultra micro barite is characterized in that processing step is as follows:
1. by the workman 10cm lump ore is carried out picking in the stock ground and reject impurity;
2. in machine mixer, add water, the dregs impurity on the flushing lump ore;
3. be broken for 325 order powders through jaw crusher and Raymond machine, with 44 μ m by being as the criterion;
4. with 2000 liters in water, 2200 kilograms of 325 order breezes, industrial boric acid (H
3BO
3) 60 kilograms, technical hydrochloric acid 220 liters (d1.19) heat to 100 ± 5 ℃ in 3000 liters of reactors, stirred 40 minutes;
5. at 10m
3Add that water washs in jar, stirring, sedimentation, get rid of acid-bearing wastewater and return the washing lump ore, repeatedly several times to solution ph 6～7, F
3+To CNS
-Reaction does not take on a red color;
6. pump into plate-and-frame filter press, remove moisture to slurry with air compressor machine and become cake;
7. belt is carried;
8. in the rotation rapid dryer, make powder drying;
9. with micronizer mill powder is broken for d50＜1.0 μ m;
10. packed sealing weather-proof dressing, warehouse-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95106400A CN1056820C (en) | 1995-06-14 | 1995-06-14 | Method for preparing F for anti-corrosion in mfg. process of supermicro barite powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95106400A CN1056820C (en) | 1995-06-14 | 1995-06-14 | Method for preparing F for anti-corrosion in mfg. process of supermicro barite powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1138558A true CN1138558A (en) | 1996-12-25 |
| CN1056820C CN1056820C (en) | 2000-09-27 |
Family
ID=5075908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95106400A Expired - Fee Related CN1056820C (en) | 1995-06-14 | 1995-06-14 | Method for preparing F for anti-corrosion in mfg. process of supermicro barite powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1056820C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100375715C (en) * | 2006-06-28 | 2008-03-19 | 上海安亿纳米材料有限公司 | Process for preparing nano barite |
| CN101941730A (en) * | 2010-08-23 | 2011-01-12 | 郧西华悦矿化有限公司 | Technological method for processing high-gloss barium sulfate |
| CN102303890A (en) * | 2011-08-19 | 2012-01-04 | 卢长生 | Production process for converting gray black barite into white barite finished product |
| CN102616824A (en) * | 2012-04-09 | 2012-08-01 | 武汉理工大学 | Method for preparing ultrafine high-whiteness active barite powder |
| CN102909119A (en) * | 2012-11-06 | 2013-02-06 | 贵州省黄平县江润矿业有限责任公司 | Ultra-fine barite powder processing method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1022963C (en) * | 1992-04-16 | 1993-12-01 | 李学博 | Microstrip multi-way non-uniform power distributing and synthesing device |
-
1995
- 1995-06-14 CN CN95106400A patent/CN1056820C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100375715C (en) * | 2006-06-28 | 2008-03-19 | 上海安亿纳米材料有限公司 | Process for preparing nano barite |
| CN101941730A (en) * | 2010-08-23 | 2011-01-12 | 郧西华悦矿化有限公司 | Technological method for processing high-gloss barium sulfate |
| CN102303890A (en) * | 2011-08-19 | 2012-01-04 | 卢长生 | Production process for converting gray black barite into white barite finished product |
| CN102616824A (en) * | 2012-04-09 | 2012-08-01 | 武汉理工大学 | Method for preparing ultrafine high-whiteness active barite powder |
| CN102909119A (en) * | 2012-11-06 | 2013-02-06 | 贵州省黄平县江润矿业有限责任公司 | Ultra-fine barite powder processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1056820C (en) | 2000-09-27 |
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| C14 | Grant of patent or utility model | ||
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