A kind of preparation method of inorganic composite white pigment with high hiding power

An inorganic composite, white pigment technology, applied in inorganic pigment treatment, chemical instruments and methods, fibrous fillers, etc., can solve the problems of no advantages in production cost and environmental protection, high production cost, large water consumption, etc., to alleviate the problem of titanium dioxide The effect of tight supply of raw materials, alleviation of environmental protection pressure, and simple preparation process
CN101775239BInactive Publication Date: 2011-12-07CHINA UNIV OF MINING & TECH (BEIJING)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF MINING & TECH (BEIJING)
Publication Date
2011-12-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a preparation method of an inorganic composite white pigment with high hiding power. This method uses titanium dioxide and white ore powder or compound white ore powder as raw materials, and uses wet ultra-fine stirring mill or sand mill as composite equipment, by adding a certain amount of pH regulator and dispersant to the titanium dioxide and white ore. The powder is subjected to segmental wet ultrafine grinding and compounding, and then the slurry product after ultrafine grinding and compounding is dried and mechanically dispersed and depolymerized to prepare performance indicators such as particle size, whiteness, hiding power and the particle size and whiteness of titanium dioxide. It is the same or similar to the hiding power index, and can replace the inorganic composite white pigment used in titanium dioxide. The method has simple preparation process, low production cost and clean production process.
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Description

Technical field:

[0001] The invention relates to a preparation method of an inorganic composite white pigment with high hiding power and high whiteness, belonging to the field of material science and engineering or the field of inorganic chemical industry. Background technique:

[0002] Inorganic pigments have good high temperature resistance, chemical stability, weather resistance, etc., and are one of the important functional pigments. Titanium dioxide in inorganic pigments (the main component is TiO 2 ), especially rutile titanium dioxide, which has high hiding power and whiteness, good chemical stability and weather resistance, and is widely used in coatings, inks, plastics, leather, fabrics, cosmetics and other fields. Broad range of high performance white inorganic pigments. With the development of related industries, the market demand for titanium dioxide is increasing year by year. However, the production process of titanium dioxide is relatively complicated. Whet...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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