CN115746580A - Preparation method of barium sulfate white filler for paint production - Google Patents
Preparation method of barium sulfate white filler for paint production Download PDFInfo
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- CN115746580A CN115746580A CN202211478515.3A CN202211478515A CN115746580A CN 115746580 A CN115746580 A CN 115746580A CN 202211478515 A CN202211478515 A CN 202211478515A CN 115746580 A CN115746580 A CN 115746580A
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- CN
- China
- Prior art keywords
- barium sulfate
- barite powder
- paint production
- white filler
- barite
- 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.)
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- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 title claims abstract description 133
- 239000000945 filler Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 239000003973 paint Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000000227 grinding Methods 0.000 claims abstract description 17
- 238000001354 calcination Methods 0.000 claims abstract description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 12
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 claims abstract description 6
- 235000019345 sodium thiosulphate Nutrition 0.000 claims abstract description 6
- 239000002253 acid Substances 0.000 claims abstract description 5
- 238000004061 bleaching Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 229910052601 baryte Inorganic materials 0.000 claims description 10
- 239000010428 baryte Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 abstract description 2
- 238000005554 pickling Methods 0.000 abstract 1
- -1 titanic acid ester Chemical class 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000003049 inorganic solvent Substances 0.000 description 3
- 229910001867 inorganic solvent Inorganic materials 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 159000000009 barium salts Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008395 clarifying agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Paints Or Removers (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention belongs to the field of barium sulfate filler, and discloses a preparation method of barium sulfate white filler for paint production, which comprises the steps of raw material selection (barite powder ore with BaSO4 content of more than or equal to 98, whiteness of more than or equal to 92 and density of more than or equal to 4.3g/cm & lt 3 & gt is selected as a raw material), calcination, ore grinding and acid pickling (the barite powder is added into hydrochloric acid solution with mass concentration of 10-15% and is stirred and mixed for 15-20 minutes and then filtered, and the filtered product is dried at 55-60 ℃ to obtain barite powder for later use), bleaching (the dried barite powder is added into sodium thiosulfate solution with mass concentration of 2-3% and is stirred for B time and then filtered, and the filtered product is dried at 40-45 ℃ to obtain the barite powder for later use), and modification (the dried barite powder is added into titanic acid ester solution with mass concentration of 0.3-0.5% and is stirred for C time and then filtered, and the filtered product is dried at 60-70 ℃ to obtain the barium sulfate white filler for paint production).
Description
Technical Field
The invention belongs to the technical field of barium sulfate fillers, and particularly relates to a preparation method of a barium sulfate white filler for paint production.
Background
Barium sulfate is almost insoluble in water, ethanol and acid, has a high melting point, a high refractive index and a white color, and has a certain covering power, so that barium sulfate is widely applied to raw materials or fillers of paint, coating, printing ink, plastics, rubber and storage batteries; surface coating agents for printing paper and copperplate paper; sizing agents for the textile industry; the glass product is used as a clarifying agent, has the functions of defoaming and increasing luster, can be used as a protective wall material for preventing radiation, is also used in industries such as porcelain, enamel, dye and the like, and is also a raw material for preparing other barium salts.
The barium sulfate is used as raw materials or fillers for different purposes, and the requirements of different industries on barium sulfate products are different, and when the barium sulfate is used as a paint filler, the barium sulfate is required to be coated on the surface of a protected or decorated object and can form a firmly-attached continuous film with the coated object to improve the heat insulation performance or the corrosion resistance of paint. This requires not only good physicochemical properties of other solvents, but also good physicochemical properties of barium sulfate as filler.
Disclosure of Invention
In view of the problems raised by the above background art, the present invention is directed to: aims to provide a preparation method of barium sulfate white filler for paint production, which realizes that barium sulfate has good physical and chemical properties and can be dissolved with other solvents to obtain better paint performance.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a preparation method of a barium sulfate white filler for paint production is characterized by comprising the following steps: the preparation method comprises the following steps of,
s1, selecting raw materials, namely selecting barite powder ore with BaSO4 content of more than or equal to 98, whiteness of more than or equal to 92 and density of more than or equal to 4.3g/cm & lt 3 & gt as the raw materials;
s2, calcining the barite powder ore for 1 to 1.5 hours at 960 to 980 ℃ through calcining equipment;
s3, grinding, namely grinding the calcined barite by using an ore grinding machine to obtain barite powder with the grinding fineness of-1250 meshes accounting for 95-100%;
s4, acid washing, namely adding barite powder into a hydrochloric acid solution with the mass concentration of 10-15%, stirring and mixing for A time, filtering, and drying a filtered product at 55-60 ℃ to obtain barite powder for later use;
s5, bleaching, namely adding the dried barite powder into a sodium thiosulfate solution with the mass concentration of 2-3%, stirring for B time, filtering, and drying a filtered product at 40-45 ℃ to obtain barite powder for later use;
s6, modifying, namely adding the dried barite powder into a titanate solution with the mass concentration of 0.3-0.5%, stirring for C time, filtering, and drying a filtered product at the temperature of 60-70 ℃ to obtain the barium sulfate white filler for paint production.
Further, in the S2, the calcined barite fine ore is 1 to 2 parts.
Further, in S3, the adopted ore mill is a ceramic ball planetary ore mill.
In the step S4, the time A is 15 to 20 minutes.
In the step S5, the time B is 15 to 20 minutes.
In the step S6, the time C is 15 to 20 minutes.
The invention has the beneficial effects that:
1. the preparation method of the barium sulfate white filler for paint production can be well dissolved with other organic and inorganic solvents through the working procedures of calcining, grinding, acid washing, bleaching and modifying, thereby integrally realizing the purpose of high dispersion and solving the defects of poor dispersion and uneven mixing of barium sulfate;
2. the preparation method of the white barium sulfate filler for paint production has the advantages of shortened production process and production period, simple process, convenient operation, less production processes such as high temperature, high pressure and the like, energy consumption reduction, production economic cost reduction and good economic benefit of enterprises.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a flow chart of an embodiment of a method of making a white barium sulfate filler for paint manufacture according to the present invention;
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
Example I
S1, selecting BaSO 4 The content is more than or equal to 98, the whiteness is more than or equal to 92, and the density is more than or equal to 4.3g/cm 3 The barite powder ore is used as a raw material;
s2, calcining 1 part of barite fine ore for 1 hour at 960 ℃ through calcining equipment;
s3, grinding the calcined barite by using a ceramic ball planetary ore grinding machine to obtain barite powder with the grinding fineness of-1250 meshes accounting for 95%;
s4, adding the barite powder into a hydrochloric acid solution with the mass concentration of 10%, stirring and mixing for 15 minutes, filtering, and drying a filtered product at 55 ℃ to obtain the barite powder for later use;
s5, adding the dried barite powder into a sodium thiosulfate solution with the mass concentration of 2%, stirring for 15 minutes, filtering, and drying a filtered product at 40 ℃ to obtain barite powder for later use;
s6, adding the dried barite powder into a titanate solution with the mass concentration of 0.3%, stirring for 10 minutes, filtering, and drying a filtered product at 60 ℃ to obtain the barium sulfate white filler No. 1 for paint production.
Example II
S1, selecting barite fine ore with BaSO4 content of more than or equal to 98, whiteness of more than or equal to 92 and density of more than or equal to 4.3g/cm3 as a raw material;
s2, calcining 1 part of barite fine ore for 1.2 hours at 970 ℃ through calcining equipment;
s3, grinding the calcined barite by using a ceramic ball planetary ore mill to obtain barite powder with the grinding fineness of-1250 meshes accounting for 98%;
s4, adding the barite powder into a hydrochloric acid solution with the mass concentration of 13%, stirring and mixing for 18 minutes, filtering, and drying a filtered product at 58 ℃ to obtain the barite powder for later use;
s5, adding the dried barite powder into a sodium thiosulfate solution with the mass concentration of 2.5%, stirring for 18 minutes, filtering, and drying a filtered product at 45 ℃ to obtain the barite powder for later use;
s6, adding the dried barite powder into a titanate solution with the mass concentration of 0.4%, stirring for 13 minutes, filtering, and drying a filtered product at 65 ℃ to obtain the barium sulfate white filler No. 2 for paint production.
Example III
S1, selecting barite powder ore with BaSO4 content of more than or equal to 98, whiteness of more than or equal to 92 and density of more than or equal to 4.3g/cm & lt 3 & gt as a raw material;
s2, calcining 2 parts of barite powder ore for 1.5 hours at 980 ℃ through calcining equipment;
s3, grinding the calcined barite by using a ceramic ball planetary ore mill to obtain barite powder with the grinding fineness of-1250 meshes accounting for 100%;
s4, adding the barite powder into a hydrochloric acid solution with the mass concentration of 15%, stirring and mixing for 20 minutes, filtering, and drying a filtered product at 60 ℃ to obtain the barite powder for later use;
s5, adding the dried barite powder into a sodium thiosulfate solution with the mass concentration of 3%, stirring for 20 minutes, filtering, and drying a filtered product at 45 ℃ to obtain barite powder for later use;
s6, adding the dried barite powder into a titanate solution with the mass concentration of 0.5%, stirring for 15 minutes, filtering, and drying a filtered product at 70 ℃ to obtain the barium sulfate white filler No. 3 for paint production.
The barium sulfate white fillers No. 1, 2 and 3 are respectively dissolved in organic and inorganic solvents, and the observed results show that the barium sulfate white fillers No. 1, 2 and 3 have high dispersity, and the barium sulfate white fillers No. 1, 2 and 3 can be well mixed and dissolved in both organic and inorganic solvents;
in the embodiment, the preparation method of the barium sulfate white filler for paint production has the advantages of short production period, simple process, convenient operation, less production processes such as high temperature, high pressure and the like, energy consumption reduction, production economic cost reduction and good economic benefit of enterprises.
The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Those skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. A preparation method of barium sulfate white filler for paint production is characterized by comprising the following steps: the preparation method comprises the following steps of,
s1, selecting raw materials, namely selecting BaSO 4 The content is more than or equal to 98, the whiteness is more than or equal to 92, and the density is more than or equal to 4.3g/cm 3 The barite fine ore is used as a raw material;
s2, calcining, namely calcining the barite powder ore for 1 to 1.5 hours at 960 to 980 ℃ through calcining equipment;
s3, grinding, namely grinding the calcined barite by using an ore grinding machine to obtain barite powder with the grinding fineness of-1250 meshes accounting for 95-100%;
s4, acid washing, namely adding barite powder into a hydrochloric acid solution with the mass concentration of 10-15%, stirring and mixing for A time, filtering, and drying a filtered product at 55-60 ℃ to obtain barite powder for later use;
s5, bleaching, namely adding the dried barite powder into a sodium thiosulfate solution with the mass concentration of 2-3%, stirring for B time, filtering, and drying a filtered product at 40-45 ℃ to obtain barite powder for later use;
s6, modifying, namely adding the dried barite powder into a titanate solution with the mass concentration of 0.3-0.5%, stirring for C time, filtering, and drying a filtered product at the temperature of 60-70 ℃ to obtain the barium sulfate white filler for paint production.
2. The method for preparing the barium sulfate white filler for paint production according to claim 1, wherein the method comprises the following steps: in S2, 1-2 parts of calcined barite powder ore.
3. The method for preparing the barium sulfate white filler for paint production according to claim 2, wherein the method comprises the following steps: in S3, the adopted ore mill is a ceramic ball planet ore mill.
4. The method for preparing the barium sulfate white filler for paint production according to claim 1, wherein the method comprises the following steps: in the S4, the time A is 15 to 20 minutes.
5. The method for preparing the barium sulfate white filler for paint production according to claim 1, wherein the method comprises the following steps: in the S5, the time B is 15 to 20 minutes.
6. The method for preparing the barium sulfate white filler for paint production according to claim 1, wherein the method comprises the following steps: in the S6, the time C is 15-20 minutes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211478515.3A CN115746580A (en) | 2022-11-23 | 2022-11-23 | Preparation method of barium sulfate white filler for paint production |
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|---|---|---|---|
| CN202211478515.3A CN115746580A (en) | 2022-11-23 | 2022-11-23 | Preparation method of barium sulfate white filler for paint production |
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Application publication date: 20230307 |