Method for preparing high quality titanium white

A high-quality, titanium dioxide technology, applied in the direction of titanium dioxide, titanium oxide/hydroxide, etc., can solve the problem of unsatisfactory effect, unsatisfactory solid impurity and colloidal impurity removal method, solid adsorbate removal of mechanical impurities and colloidal particles. The method has no problems such as reports, and achieves the effects of eliminating negative effects, improving whiteness, and improving achromatic power.
CN101357777AInactive Publication Date: 2009-02-04PANGANG GROUP RESEARCH INSTITUTE CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PANGANG GROUP RESEARCH INSTITUTE CO LTD
Publication Date
2009-02-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a method for preparing high-quality titanium dioxide and includes the technological processes of grinding, acid decomposing, settling, residue washing, titanium liquid concentrating, hydrolyzing, washing, salt treating, calcining and crashing of raw materials containing titanium; wherein, a solid filtration medium is adopted to process concentrated titanium liquid with purifying treatment before the hydrolysis to remove colloids and solid impurities in the titanium liquid, and the colloids and solid impurities are produced in the processes of acid decomposition and concentration. As the colloids and solid impurities in the titanium liquid can be better removed with the method, both the achromic ability and whiteness of the prepared high-quality titanium dioxide are obviously improved.
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Description

technical field

[0001] The invention relates to the technical field of titanium dioxide production, in particular to a method for preparing high-quality titanium dioxide. Background technique

[0002] In recent years, international titanium dioxide (TiO 2 ) The industry has undergone tremendous changes and is developing in the direction of high-quality titanium dioxide. Therefore, major manufacturers have continuously launched high-quality titanium dioxide products with excellent performance, and the products are shifting towards a full range of multi-functions. These functions are mainly reflected in good hiding power, high weather resistance and high dispersion. There is a certain gap between the quality of titanium dioxide products produced in my country and foreign products, so all the high-quality titanium dioxide products currently used in my country need to import titanium dioxide products produced abroad.

[0003] The production technology for producing titanium di...

Claims

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