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Method for preparing conductive titanium dioxide

A technology of conductive titanium dioxide and titanium dioxide, applied in chemical instruments and methods, fibrous fillers, dyeing physical treatment, etc., can solve the problems of poor conductivity and complicated process of conductive titanium dioxide

Pending Publication Date: 2022-07-22
贵州胜泽威化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing process is complicated, and the obtained conductive titanium dioxide has poor conductivity

Method used

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  • Method for preparing conductive titanium dioxide
  • Method for preparing conductive titanium dioxide

Examples

Experimental program
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Effect test

Embodiment 1

[0089] S100: Mix the rutile titanium dioxide powder produced by the chlorination process with the desalinated water to make a slurry, and add sodium hexametaphosphate as a dispersant according to 0.3% of the mass fraction of titanium dioxide under stirring to obtain a titanium dioxide slurry with a concentration of 450g / L material;

[0090] S200: wet grinding and dispersing the above-mentioned titanium dioxide slurry using a horizontal sand mill to obtain a titanium dioxide suspension in which the titanium dioxide particles are completely dispersed;

[0091] S310: introducing the above-mentioned titanium dioxide suspension into the coating reaction tank and heating to 70 degrees Celsius by electric heating, and adjusting the pH value of the solution to 10 with sodium hydroxide and sulfuric acid to obtain the titanium dioxide suspension after pH adjustment;

[0092] S320: configure zirconyl sulfate as an aqueous solution with a zirconium dioxide concentration of 200 g / L, contro...

Embodiment 2

[0097] S100: Mix the rutile titanium dioxide powder produced by the chlorination process with the desalinated water to make a slurry, and add sodium hexametaphosphate as a dispersant according to 0.3% of the mass fraction of titanium dioxide under stirring to obtain a titanium dioxide slurry with a concentration of 450g / L material;

[0098] S200: wet grinding and dispersing the above-mentioned titanium dioxide slurry using a horizontal sand mill to obtain a titanium dioxide suspension in which the titanium dioxide particles are completely dispersed;

[0099] S310 : introducing the above-mentioned titanium dioxide suspension into a coating reaction tank and heating to 70 degrees Celsius by electric heating, and adjusting the pH of the solution to 10 with sodium hydroxide and sulfuric acid to obtain a pH-adjusted titanium dioxide suspension.

[0100] S320: configure zirconyl sulfate as an aqueous solution with a zirconium dioxide concentration of 200 g / L, control the reaction te...

Embodiment 3

[0105] S100: Mix the rutile titanium dioxide powder produced by the chlorination process with the desalinated water to make a slurry, and add sodium hexametaphosphate as a dispersant according to 0.3% of the mass fraction of titanium dioxide under stirring to obtain a titanium dioxide slurry with a concentration of 450g / L material;

[0106] S200: wet grinding and dispersing the above-mentioned titanium dioxide slurry using a horizontal sand mill to obtain a titanium dioxide suspension in which the titanium dioxide particles are completely dispersed;

[0107] S310 : introducing the above-mentioned titanium dioxide suspension into a coating reaction tank and heating to 70 degrees Celsius by electric heating, and adjusting the pH of the solution to 10 with sodium hydroxide and sulfuric acid to obtain a pH-adjusted titanium dioxide suspension.

[0108] S320: configure zirconyl sulfate as an aqueous solution with a zirconium dioxide concentration of 200 g / L, control the reaction te...

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Abstract

The invention discloses a method for preparing conductive titanium dioxide, which comprises the following steps: (1) mixing titanium dioxide powder with desalted water and a dispersing agent to obtain titanium dioxide slurry; (2) carrying out wet grinding dispersion treatment on the titanium dioxide slurry so as to obtain a titanium dioxide suspension; (3) carrying out modification treatment on the titanium dioxide suspension and a first modifier so as to obtain a first modified titanium dioxide suspension; (4) carrying out modification treatment on the first modified titanium dioxide suspension and a second modifier, and carrying out pH regulation by using first alkali liquor so as to obtain a second modified titanium dioxide suspension; and (5) carrying out filter pressing, washing, drying, crushing, calcining and cooling treatment on the second modified titanium dioxide suspension to obtain the conductive titanium dioxide. According to the method, the conductive titanium dioxide with a stable, compact and uniform coating layer and excellent dispersity can be obtained, the pigment performance of the titanium dioxide is improved, and meanwhile, the conductive performance of the titanium dioxide is realized.

Description

technical field [0001] The invention belongs to the field of preparation of functional titanium dioxide, in particular, the invention relates to a method for preparing conductive titanium dioxide. Background technique [0002] As a white pigment, titanium dioxide is widely used in many fields such as coatings, plastics, papermaking and inks. With the development of coating technology and the special performance requirements of the use environment, the market demand for functional titanium dioxide is increasing. [0003] Affected by the use environment, such as particles, dust, moisture in the air, etc., it is easy to generate static electricity. When the generated static electricity accumulates to a certain extent, it is very likely to cause safety hazards. To this end, it is necessary to add antistatic pigments in the manufacture of coatings. Titanium dioxide, as the main component in the manufacture of coatings, is required to have a certain conductivity. However, due to ...

Claims

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Application Information

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IPC IPC(8): C09C1/36C09C3/04C09C3/06
CPCC09C1/3661C09C1/3623C09C1/363C09C1/3692C01P2006/40
Inventor 马磊李海艳周立国王照清郭正仙梁馨亓王祥碧武玉蓉韩维玲
Owner 贵州胜泽威化工有限公司
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