Rare earth composite coated titanium dioxide as well as preparation method and application thereof

A rare earth composite, titanium dioxide technology, applied in the application, chemical instruments and methods, household appliances, etc., can solve the problems of insufficient light resistance, yellowing, etc., and achieve the effect of good dispersion
CN112143262AInactive Publication Date: 2020-12-29ANHUI JXTB GRP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ANHUI JXTB GRP
Publication Date
2020-12-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses rare earth composite coated titanium dioxide as well as a preparation method and application thereof, and belongs to the technical field of titanium dioxide production. The method comprises the following steps: a titanium dioxide crude product is crushed by a rolling mill and then enters a pulping tank, desalted water and a dispersing agent are added at the same time, uniform stirring is performed to prepare titanium dioxide crude product slurry, and the obtained slurry is subjected to wet grinding by a ball mill; grinding the slurry by a sand mill; transferring the ground slurry into a surface treatment tank for inorganic surface treatment; transferring the obtained slurry into a plate-and-frame filter press for filter pressing, and washing with desalted water to obtain a filter cake; and drying the filter cake to obtain a titanium dioxide material, and carrying out organic coating on the titanium dioxide material through a jet milling process to obtain a titanium dioxide finished product. Compared with a conventional product, the titanium dioxide prepared by the preparation method disclosed by the invention is better in whiteness and stronger in light resistance, and has better application performance in an application system.
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Description

technical field

[0001] The invention belongs to the technical field of titanium dioxide production, and more specifically relates to a rare-earth composite-coated titanium dioxide and its preparation method and application. Background technique

[0002] TiO 2 Commonly known as titanium dioxide, it is the most widely used high-grade white pigment in the world, mainly used in coatings, plastics, papermaking, chemical fiber, food and daily chemicals and other fields. The crystal forms of titanium dioxide include the following three types: rutile, anatase and brookite. Among them, the rutile type is the most stable crystal form of titanium dioxide. Its structure is compact, and compared with other crystal types, it has a wider range of applications and a better reputation. Because of its excellent optical properties, rutile type titanium dioxide has become the best white pigment.

[0003] However, since titanium dioxide is extracted from titanium ore, impurity ions are indispe...

Claims

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