Titania coating kaolinite compound powder and method for preparing same

A composite powder and kaolin technology, applied in chemical instruments and methods, inorganic pigment treatment, fibrous fillers, etc., can solve the problems of weak binding force between titanium oxide and kaolin, large final powder particles, etc., and achieve a small particle size distribution range. , The effect of uniform whiteness and cost reduction
CN101250337AInactive Publication Date: 2008-08-27中国高岭土有限公司
1 Cites 14 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
中国高岭土有限公司
Publication Date
2008-08-27
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

Titanium oxide coating kaolin composite powder belongs to a process for producing composite white pigment powder through the inorganic treatment method. The raw material formulation is formed by following components with percentage by weight: 12%-18% titanium sulfate, 6%-9% kaolin, 10%-19% carbamide, 0.15%-0.30% sodium hexametaphosphate, 0.5%-1.2% starch, 0.04%-0.08% water-soluble carbonate, 0.01%-0.05% phosphorus acid and rest amount of water. The preparation process comprises the steps of coating reacting, water scouring, salt treatment, acid treatment, dispersion, drying and calcination. The titanium oxide coating kaolin composite powder which is prepared through adopting the homogenous precipitation method has the advantages of even whiteness and small particle size distribution range, and each index all approximates to the index of titanium white powder.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method for producing composite white pigment powder by an inorganic treatment method, in particular to a titanium oxide-coated kaolin composite powder and a preparation method thereof. Background technique

[0002] Titanium dioxide is a white pigment with excellent heat resistance, weather resistance, chemical stability, easy dispersion and good hiding power. With the merger and reorganization of the titanium dioxide industry, the high concentration and monopoly of titanium dioxide production, and the shortage of titanium ore resources, the production capacity of titanium dioxide is greatly restricted. Today, with the accelerated progress of society, the demand for titanium dioxide in coatings, plastics, paper, cosmetics and other industries is also increasing. These factors lead to the shortage of titanium dioxide, which keeps the price of titanium dioxide high. Therefore, the concept of using cheap materials such as kaoli...

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
Login to View More