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Continuous production oxidation furnace and production method of highly pure titanium dioxide

A titanium dioxide, high-purity technology, applied in the direction of titanium oxide/hydroxide, titanium dioxide, chemical industry, etc., can solve the problems of many impurities in production, low production efficiency, large waste, etc., to save energy, improve use efficiency, improve The effect of purity

Active Publication Date: 2016-01-27
仙桃市中星电子材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides an oxidation furnace for continuous production of high-purity titanium dioxide and its production method, which are used to solve the existing technical problems of low production efficiency, low output, large waste, and many impurities produced.

Method used

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  • Continuous production oxidation furnace and production method of highly pure titanium dioxide
  • Continuous production oxidation furnace and production method of highly pure titanium dioxide

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Experimental program
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Embodiment

[0030] Embodiment: adopt the method for continuous production of high-purity titanium dioxide to be:

[0031] 1. Preheating: Toluene and oxygen are introduced into the oxidation furnace, and the toluene combustion section 3 of the furnace body heats the oxygen due to the heat generated by the toluene combustion, so that the temperature in the furnace reaches 1800°C, which is the most favorable environment for the production of titanium dioxide. The calcination time is 30 minutes. Air pressure 10000Pa;

[0032] 2. Reaction: Inject titanium tetrachloride into 6 places in the bathroom section of the oxidation furnace, spray chlorine

[0033] Potassium, potassium chloride is one-thousandth of titanium tetrachloride, which can control the calcination process of titanium dioxide, so that the particle size and particle softness are moderate. At the same time, the salt treatment agent also acts as a crystal form accelerator; in the commutator Under the action of 25, a violent oxida...

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Abstract

A continuous production oxidation furnace of highly pure titanium dioxide comprises a furnace body, the furnace body is formed by an inner container and a pressure container wrapping the inner container, and the furnace body is sequentially divided into a toluene burning segment, a bathroom segment and a scar beating salt segment. The furnace has the characteristics of energy saving, purity improvement and efficiency increase. The material of the inner container is ceramic, and the ceramic has extremely high oxidation resistance, avoids various chemical reaction oxidations and guarantees smooth implementation of reactions; and hot oxygen rings improve full oxygen and promote combustion, cooling water is used to cool a product obtained after a reaction, and a nucleation gas added in the bathroom segment can control the quality of TiO2 particles generated after oxidation, so a generated gas-solid mixture is cooled, and scabbing of an oxidation reactor is prevented. A production method also disclosed in the invention has the advantages of tail gas recycling, gas recycling, use efficiency improvement and resource waste reduction.

Description

technical field [0001] The invention belongs to the field of titanium dioxide production equipment, in particular to an oxidation furnace for continuous production of high-purity titanium dioxide and a production method thereof. Background technique [0002] Titanium dioxide( chemical formula : TiO?), white solid or powdery amphoteric oxide, molecular weight: 79.87, is a white inorganic pigment with non-toxicity, best opacity, best whiteness and brightness, and is considered to be the best performance in the world One of the best white paints. Widely used in paint, plastic, paper, printing ink, chemical fiber, rubber, cosmetics and other industries. [0003] China's titanium dioxide industry started in the mid-1950s, but the output of titanium dioxide was seriously insufficient, importing nearly 200,000 tons per year, and most of my country's titanium concentrates are rock ore, with many harmful components and miscellaneous elements, which are difficult to produce. Separat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/047
CPCY02P20/10
Inventor 赵中友黄敏吴兵生管国锋王敏张业昌秦欢
Owner 仙桃市中星电子材料有限公司
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