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Preparation method of titanium oxide and its application

A technology of titanium oxide and titanium hydroxide, applied in the directions of titanium dioxide, titanium oxide/hydroxide, fibrous filler, etc., can solve the problems of film peeling, film non-uniformity, large consumption of funds, etc. performance, low cost

Inactive Publication Date: 2003-09-17
广东奥因环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the basic material of the coated film is greatly limited, and it is difficult to obtain a uniform film
In addition, there is also a method of directly using anatase-type titanium dioxide mixed with a certain amount of tackifier to form a coating liquid, but the prepared coating liquid is coated on the substrate, although it shows its catalytic function, the effect is not good. Unsatisfactory, for example, when manufacturing the coating liquid, it consumes a lot of money, and the formed film is easy to fall off from the substrate and loses its photocatalytic effect
Secondly, since the coating solution contains a certain amount of tackifier and other compounds, it will release harmful gas when heated and pollute the environment.
Moreover, the obtained film is not uniform or forms a porous film
So there are many inconveniences in actual use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Preparation of raw material liquid for product manufacturing:

[0041] (1) Dilute a titanium tetrachloride solution with a concentration of 50% by weight 60 times with deionized water, and then treat it with an ionic membrane to convert it into an aqueous solution of titanium oxychloride.

[0042] (2) Dilute ammonia water with a concentration of 25% by weight 10 times with deionized water, mix it with the solution obtained in (1) at a volume ratio of 1:6, and neutralize.

[0043] (3) After the neutralization reaction, the pH of the solution was adjusted to 6.8, and after standing for 30 minutes, the water in the upper layer was removed with a centrifuge, and the remaining Ti(OH) 4 The precipitate continued to be washed with deionized water until the conductivity of the supernatant was 10 μS·CM -2 Until then, stop cleaning.

[0044] (2) After dissolving the washed titanium hydroxide precipitate obtained in (1) in deionized water, treat it with malic acid as a stabi...

Embodiment 2

[0047] Ferromagnetite powder, tourmaline powder and copper sulfate equivalent to 0.8% by weight of the obtained solution can be added to the anatase titanium oxide solution obtained in Example 1 to improve the catalytic effect.

Embodiment 3

[0049] The surfactant sodium phosphate of each 0.2 mg / gram titanium hydroxide and the tackifier sodium carboxymethyl cellulose and the tackifier can be added in the solution obtained in Example 2 to adjust the coating between the substrate and the solution. wetness.

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Abstract

A process for preparing titanium oxide includes such steps as converting the Ti-contained aqueous solution to titanium hydroxide, adding hydrogen peroxide and generating thermal reaction to obtain the solution of anatase-type titanium oxide solution with complex group, and drying. It can be used to prepare coating solution, while has high adhesion and no corrosion to substrate.

Description

technical field [0001] The invention belongs to surface coating materials, and more specifically relates to a preparation method and application of titanium oxide used in coatings. Background technique [0002] In the past, the coating solution of titanium oxide was formulated with inorganic or organic titanium compounds. After adding a certain amount of tackifier and other compounds to form a coating solution, it must be heated to about 500-600°C before it is denatured into anatase. type of chemical structure. In this case, the basic material of the film to be coated is greatly limited, and it is difficult to obtain a uniform film. In addition, there is also a method of directly using anatase-type titanium dioxide mixed with a certain amount of tackifier to form a coating liquid, but the prepared coating liquid is coated on the substrate, although it shows its catalytic function, the effect is not good. Unsatisfactory, for example, when manufacturing the coating liquid, i...

Claims

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Application Information

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IPC IPC(8): C01G23/04C01G23/047C09C1/36C09D1/00
Inventor 陈焕光刘文杰葛祖光
Owner 广东奥因环保科技有限公司
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