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Composite fine barium sulfate and manufacturing method thereof

A barium sulfate, fine technology, applied in dyeing organosilicon compound treatment, dyeing low-molecular-weight organic compound treatment, dyeing physical treatment, etc. Good durability, corrosion resistance and stability

Active Publication Date: 2013-11-20
刘虎成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The content and whiteness of this production method are relatively high, but chemical synthesis is easy to cause environmental pollution, many operating procedures, and the sales price is very expensive, resulting in high cost for users after use, the fineness is not refined enough, the uniformity is not enough, and the gloss is not high enough

Method used

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  • Composite fine barium sulfate and manufacturing method thereof

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Embodiment Construction

[0022] Composite fine barium sulfate, including barium sulfate and kaolin, the barium sulfate is crushed and sieved from heavy gold stone, after mineral processing and purification, the content and whiteness are both above 90%, and then through ultrafine grinding and fine classification. - Barium sulfate particles of 20 microns, then fully mixed with kaolin at a weight ratio of 6:1-12:1, and finally added a small amount of surface modifier and coupling agent to mix.

[0023] In this embodiment, the content and whiteness of the barium sulfate obtained through ore dressing and purification are between 93%-98%, preferably about 95%; the surface modifier is silane, and the coupling agent is titanate; The weight ratio of the barium sulfate to kaolin is preferably 9:1.

[0024] like figure 1 Shown, the manufacture method of composite fine barium sulfate may further comprise the steps:

[0025] 1. Heavy metal crushing and screening

[0026] Choose barite raw ore size 150*250mm, ba...

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Abstract

The invention relates to composite fine barium sulfate and a manufacturing method thereof. The manufacturing method comprises the following steps of carrying out barite crushing, screening and mineral-separation purification to obtain barium sulfate particles having content and whiteness of about 95%, carrying out ultrafine comminution and fine grading to obtain barium sulfate particles having the sizes of 3-20 micrometers, fully mixing the barium sulfate particles and kaolin according to a weight ratio of 6: 1-12: 1, and adding a small amount of a surface modifier and a coupling agent into the mixture to obtain the composite fine barium sulfate, wherein the surface modifier is silane and the coupling agent is titanate. The manufacturing method comprises barite crushing and screening, mineral-separation purification, ultrafine comminution and fine grading, blending, and surface modification treatment. The composite fine barium sulfate has the characteristics of radiation resistance, weatherability, corrosion resistance and good stability, and can be used for paint, printing ink pigment, plastic, rubber, papermaking ceramic, weaving chemical fibers, glass and sealing materials.

Description

technical field [0001] The invention relates to inorganic non-metal mineral powder, especially a kind of barium sulfate powder, which is widely used in paint coating, ink pigment, plastic and rubber. Background technique [0002] Barium sulfate can be used as paint, ink, plastic, rubber and glass fillers, as a protective wall material for radiation protection, and in industries such as ceramics, enamel, spices and pigments. [0003] At present, the technical methods of domestic production of barium sulfate include: [0004] ①Barium stone direct grinding method: the primary ore is manually washed, hand-selected, screened, and crushed. These relatively rough physical methods make the barium sulfate content and whiteness relatively low, and the fineness is relatively coarse, irregular, and uneven. , poor dispersion, easy to precipitate. [0005] ② Glauber's salt black ash method: Barium sulfate raw material is mixed with Glauber's salt solution after removing calcium and magn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/02C09C3/04C09C3/12C09C3/08
Inventor 刘虎成
Owner 刘虎成
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