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A kind of rutile titanium dioxide salt accelerator and its application

A technology of rutile titanium dioxide and accelerators, which is applied in the direction of titanium dioxide, titanium oxide/hydroxide, etc., can solve the problems of whiteness and weather resistance that do not meet the requirements, so as to reduce the calcination temperature, increase the conversion rate of crystal form, and improve the whiteness. The effect of degree and weather resistance

Active Publication Date: 2021-10-01
GUANGDONG HUI YUN TITANIUM IND CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conversion temperature, conversion rate, whiteness and weather resistance of the final rutile titanium dioxide still do not meet the requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] A kind of rutile titanium dioxide salt accelerator of embodiment 1

[0074] The salt treatment agent is a mixture of zinc salt, potassium salt, phosphoric acid / phosphate, barium salt and lithium salt;

[0075] The addition amount is: zinc oxide, the addition amount is calculated as zinc oxide as 0.3% of the titanium dioxide content; potassium sulfate, the addition amount is calculated as potassium oxide is 0.2% of the titanium dioxide content; phosphoric acid, the addition amount is calculated as phosphorus pentoxide as the titanium dioxide content 0.15% of barium chloride; the addition amount of barium chloride is 0.05% of the titanium dioxide content; lithium chloride, the addition amount of lithium oxide is 0.03% of the titanium dioxide content.

Embodiment 2

[0076] A kind of rutile titanium dioxide salt promotor of embodiment 2

[0077] The salt treatment agent is a mixture of zinc salt, potassium salt, phosphoric acid / phosphate, barium salt and lithium salt;

[0078] The addition amount is: zinc carbonate, the addition amount is calculated as zinc oxide as 0.8% of the titanium dioxide content; potassium hydroxide, the addition amount is calculated as potassium oxide is 0.4% of the titanium dioxide content; potassium dihydrogen phosphate, the addition amount is phosphorus pentoxide Calculated as 0.4% of the titanium dioxide content; for barium chloride, the added amount is calculated as barium oxide as 0.25% of the titanium dioxide content; for lithium chloride, the added amount is calculated as lithium oxide for 0.08% of the titanium dioxide content.

Embodiment 3

[0079] Embodiment 3 a kind of rutile titanium dioxide salt promotor

[0080] The salt treatment agent is a mixture of zinc salt, potassium salt, phosphoric acid / phosphate, barium salt and lithium salt;

[0081] The addition amount is: zinc oxide, the addition amount is calculated as zinc oxide as 0.6% of the titanium dioxide content; potassium hydroxide, the addition amount is calculated as potassium oxide is 0.36% of the titanium dioxide content; phosphoric acid, the addition amount is calculated as phosphorus pentoxide as titanium dioxide content of 0.48%; barium nitrate, the addition of barium oxide is 0.24% of the titanium dioxide content; lithium chloride, the addition of lithium oxide is 0.06% of the titanium dioxide content.

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Abstract

The invention provides a rutile titanium dioxide salt accelerator and application thereof, belonging to the technical field of rutile titanium dioxide production. The salt treatment agent includes one or more of zinc salt, potassium salt, phosphoric acid / phosphate, magnesium salt, barium salt and lithium salt. In the implementation process, the present invention obtains the claimed salt treatment agent by studying the components of the rutile titanium dioxide salt treatment agent. By changing the type of salt treatment agent and the content of various salt treatment agents, the calcining temperature is reduced, and the The conversion rate of rutile crystal form, and found that the addition order of salt treatment agents will affect the whiteness and anti-aging performance of rutile titanium dioxide, and the whiteness of rutile titanium dioxide is improved by controlling the addition order of various salt treatment agents during the preparation process and weather resistance.

Description

technical field [0001] The invention belongs to the technical field of rutile titanium dioxide production, and in particular relates to a rutile titanium dioxide salt accelerator and an application thereof. Background technique [0002] Titanium dioxide in nature exists in three crystal forms: brookite, anatase and rutile. The property state of plate titanium dioxide is unstable; the anatase titanium dioxide has a high reflectivity to ultraviolet rays, and it is easy to excite electronic energy band transitions to generate photogenerated charge carriers, which in turn promotes the occurrence of photocatalytic reactions. This feature is widely used in air purification , wastewater degradation treatment, etc.; rutile titanium dioxide is the most stable crystal form, has more stable physical and chemical properties and excellent pigment performance, and is usually used as an important inorganic chemical raw material in the production process of paint, food, cosmetics, etc. Agr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G23/047
CPCC01G23/047C01P2002/30C01P2006/65C01P2006/80
Inventor 何明川黄建文赵平陈湘涛李缉勇
Owner GUANGDONG HUI YUN TITANIUM IND CORP LTD
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