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Pyrophyllite-based composite titanium white powder and preparation method thereof

A technology of composite titanium dioxide and rutile titanium dioxide, which is applied in the field of powder pigments, can solve the problems of high power consumption, high equipment investment cost, pollution, etc., and achieve the effects of increasing production, reducing investment cost, and good hiding power

Active Publication Date: 2010-10-06
浙江皓翔矿业有限公司
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Problems solved by technology

But at present, there are two main problems in the production of titanium dioxide pigments: first, the shortage of titanium resources in the production of titanium dioxide; second, the traditional preparation process of titanium dioxide produces relatively large environmental pollution
[0005] The composite titanium dioxide prepared by the above process has good hiding power, but the process is too cumbersome, the power consumption is large, and the equipment investment cost is high

Method used

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  • Pyrophyllite-based composite titanium white powder and preparation method thereof
  • Pyrophyllite-based composite titanium white powder and preparation method thereof
  • Pyrophyllite-based composite titanium white powder and preparation method thereof

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Embodiment Construction

[0024] A pyrophyllite-based composite titanium dioxide, including pyrophyllite and rutile titanium dioxide, the mass ratio of pyrophyllite to rutile titanium dioxide is 50-90:50-10, and the blue-white luminosity of pyrophyllite is 75 -84, pyrophyllite powder is 100-2000 mesh.

[0025] In the embodiment of the present invention, a modifying agent for modifying the surface of pyrophyllite can also be added, the modifying agent can be sodium stearate, or stearic acid, sodium stearate and pyrophyllite and The mass ratio of rutile titanium dioxide is 50-90:50-10:0.5-2.5, and the mass ratio of stearic acid to pyrophyllite and rutile titanium dioxide is also 50-90:50-10:0.5-2.5. And the concentrations of stearic acid and sodium stearate are both 0.5%-2.5%.

[0026] like figure 2 Shown preparation method of the present invention, concrete steps are as follows:

[0027] 1) pulping: making the pyrophyllite into a slurry with a concentration of 15%-35%;

[0028] 2) mixing: mixing th...

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Abstract

The invention relates to a powder pigment, in particular to a pyrophyllite-based composite titanium white powder and a preparation method thereof. The invention provides the following technical scheme that: the pyrophyllite-based composite titanium white powder comprises pyrophyllite and rutile-type titanium white powder which have the mass ratio of 50-90:50-10, and the blue-white luminosity of the pyrophyllite is 75-84. By adopting the technical scheme, the invention provides the pyrophyllite-based composite titanium white powder which has low cost and simple technique, and the preparation method thereof.

Description

technical field [0001] The invention relates to a powder pigment, in particular to a pyrophyllite-based composite titanium dioxide and a preparation method thereof. Background technique [0002] Titanium dioxide (TiO 2 ) is one of the chemical raw materials with a wide range of uses. It is mainly used in coatings, plastics, paper industry, enamel, rubber, ink and textile, chemical fiber, cosmetics and other industries. As well as high smoothness and strong weather resistance, it also has properties such as chemical inertness, non-toxicity, and harmlessness to the human body, so it has become the best white pigment so far. But at present, there are two main problems in the production of titanium dioxide pigments: first, the shortage of titanium resources in the production of titanium dioxide; second, the traditional preparation process of titanium dioxide produces relatively large environmental pollution. At the same time, the problem of single titanium dioxide in applicati...

Claims

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Application Information

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IPC IPC(8): C09C1/40C09C1/36C09C3/08C09C3/04
Inventor 陈雄春盛嘉伟张津瑞蒋坤润
Owner 浙江皓翔矿业有限公司
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