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Extinction barium and preparation method thereof

A technology of extinction barium and allyl phenoxyacetate, applied in chemical instruments and methods, inorganic pigment treatment, dyeing physical treatment, etc., can solve the problems of harmful substances, high product cost, and large consumption of raw materials, and reduce production Cost, low cost, and the effect of improving product quality

Active Publication Date: 2011-07-06
杭州富阳白玉化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing extinction barium consumes a lot of raw materials in the production process, and may produce harmful substances to the body, causing pollution, which is not conducive to environmental protection, and the product cost is relatively high.
[0003] For example, the Chinese invention patent application with application number CN200810048340.6 provides a preparation method of precipitated barium sulfate, which is to add a nano-scale filter cloth to filter the traditional preparation method to obtain a refined solution, and then combine and separate, adjust acid, dry, Evaporation, the main content of barium sulfate in the product is increased from 98% to 98.6-99%, and the finished particles reach 900-1000 mesh, NA 2 The iron content of the S product is below 30PPM, but the process is very complicated, and harmful substances need to be added in the production process, which is not conducive to environmental protection, and the production cost is high

Method used

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  • Extinction barium and preparation method thereof
  • Extinction barium and preparation method thereof
  • Extinction barium and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1-3

[0028] The preparation method of extinction barium, the specific steps are as follows: select the barite with a barium content of more than 95% to select, wash, dry, and after crushing, carry out ray milling on a ray mill to make the fineness reach about 400 meshes to obtain A . Add polyacrylic acid sodium salt dispersant and allyl phenoxyacetate to A, the proportion of each raw material is shown in Table 1, and then grind with a sand mill, the particle diameter of the mixture is controlled at about 5 μm, to obtain B; add carbonic acid to B Calcium, titanium dioxide and allyl phenoxyacetate are fully mixed to obtain the high-gloss barium product, and the ratio of each raw material is shown in Table 2.

Embodiment 4-6

[0030] The preparation method of extinction barium, the specific steps are as follows: select the barite with a barium content of more than 95% to select, wash, dry, and after crushing, carry out ray milling on a ray mill to make the fineness reach about 450 meshes to obtain A . Add polyacrylic acid sodium salt dispersant and allyl phenoxyacetate to A, the ratio of each raw material is shown in Table 1, and then use a sand mill to grind, the particle diameter of the mixture is controlled within the range of 6-8 μm to obtain B; Calcium carbonate, titanium dioxide and allyl phenoxyacetate were added to the mixture to obtain the high-gloss barium product through thorough mixing. The ratio of each raw material is shown in Table 2.

Embodiment 7-9

[0032] The preparation method of extinction barium, the specific steps are as follows: select the barite with a barium content of more than 95% to select, wash, dry, and after crushing, carry out ray milling on a ray mill to make the fineness reach about 500 meshes to obtain A . Add polyacrylic acid sodium salt dispersant and allyl phenoxyacetate to A, the ratio of each raw material is shown in Table 1, and then use a sand mill to grind, the particle diameter of the mixture is controlled within the range of 9 to 10 μm to obtain B; Calcium carbonate, titanium dioxide and allyl phenoxyacetate were added to the mixture to obtain the high-gloss barium product through thorough mixing. The ratio of each raw material is shown in Table 2.

[0033] As an alternative product of precipitated barium sulfate, it is compounded by adding calcium carbonate, titanium dioxide and related additives to barite ultrafine powder. The market price of relevant components is cheaper than precipitated b...

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Abstract

The invention belongs to the field of metallic barium compounds, and particularly relates to a preparation method of extinction barium, which comprises the following steps: a. selecting barite with the barium content of higher than 95%, cleaning, and airing; b. pulverizing the aired barite, carrying out Raymond milling on a Raymond mill to obtain a product A of which the granularity is up to 400-500 meshes; c. adding sodium polyacrylate dispersing agent and allyl phenoxyacetate into the product A, and milling with a sand mill while controlling the particle diameter of the mixture within 5-10 mu m, thereby obtaining a product B; and d. adding calcium carbonate, titanium dioxide and allyl phenoxyacetate into the product B, and thoroughly mixing to obtain the extinction barium product. The method provided by the invention does not need heating, thereby saving the burning coal and being beneficial to energy saving and emission reduction; and no toxic or harmful substances are generated inthe production process. Compared with the prior art, the high-dispersivity precipitated barium sulfate provided by the invention has the advantages of small granularity, high dispersivity, low cost, and low environmental pollution in the production process.

Description

Technical field [0001] The present invention belongs to the field of metal rigidized compounds, which are specifically a method of glory and its preparation. Background technique [0002] Anti-glory is a type of precipitated sulfuric acid (English name: Pre-Cipital Barium Sulfate). It is an ultra-fine powder formed by chemical purification and ultra-fine processing. The chemical properties are quite stable and have the ability to block and absorb high-energy rays.Such products have a good gap barrier capacity for titanium white and other pigment particles, so it can save the cost of coatings. Because of its good particle size distribution and decentralization, it can often surpass the use effect of precipitated sulfuric acid in some applications fields.EssenceThe existing preparation method is generally mixed with the sulfur sulfur solution with the mix of lucifer solution after the addition of calcium and magnesium, and reacts at 80 ° C to generate precipitation. After pumping, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/02C09C3/04C09C3/06C09C3/08C09C3/10
Inventor 潘玉兵
Owner 杭州富阳白玉化工有限公司
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