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Fine particulate oxide composition containing titanium oxide, and preparing method and use thereof

A technology containing titanium oxide and a manufacturing method, which is applied in the directions of titanium oxide/hydroxide, titanium dioxide, chemical instruments and methods, etc., can solve the problems of long process and infeasibility.

Inactive Publication Date: 2005-10-05
SHOWA DENKO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is not feasible due to the long process steps and since the combustion requires a large amount of flammable solvent

Method used

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  • Fine particulate oxide composition containing titanium oxide, and preparing method and use thereof
  • Fine particulate oxide composition containing titanium oxide, and preparing method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] use figure 1 The coaxial parallel flow nozzle shown has a reaction tube with an inner diameter of 20 mm.

[0094] Gas-like titanium tetrachloride 11.8Nm containing 100% by volume 3 / hour (N refers to the standard state. The same below) preheat to 1100 ℃, put 8Nm 3 / hour of oxygen and 20Nm 3 The mixed gas of water vapor per hour is preheated to 1000°C, and the titanium tetrachloride is introduced into the inner tube of the coaxial parallel flow nozzle at the flow speed of 53m / s and 50m / s respectively, and oxygen and water vapor are introduced into the outer tube. mixed composition. In addition, 3.7 kg / hour of a 20% aqueous solution of zirconium oxychloride was sprayed from the outer peripheral portion of the coaxial parallel flow nozzle.

[0095] The calculated value of the flow velocity in the tube at a reaction temperature of 900° C. in the reaction tube was 10 m / sec. After the reaction was carried out so that the high-temperature residence time in the reaction t...

Embodiment 2

[0099] use as figure 1 The inner pipe diameter of the coaxial parallel flow nozzle shown is a reaction tube of 20mm, and the gaseous titanium tetrachloride 10.6Nm 3 / hour and nitrogen 6.0Nm 3 / hour of gas mixed to form the raw material gas containing titanium tetrachloride preheated to 1,100 ° C, 8Nm 3 / hour of oxygen and 30Nm 3 The mixed gas of water vapor per hour is preheated to 1,100°C, and the gas containing titanium tetrachloride is introduced into the inner tube of the coaxial parallel flow nozzle at the flow rate of 74m / s and 66m / s respectively, and oxygen and oxygen are introduced into the outer tube. Mixture of water vapor. In addition, 7.1 kg / hour of a 20% aqueous solution of chromium trichloride was sprayed from the outer peripheral portion of the coaxial parallel flow nozzle.

[0100] The calculated value of the flow velocity in the tube at a reaction temperature of 1,000° C. in the reaction tube was 10 m / sec. After the reaction was carried out so that the hi...

Embodiment 3

[0103] use as figure 1 The inner pipe diameter of the coaxial parallel flow nozzle shown is a reaction tube of 24mm, and the gaseous titanium tetrachloride 10.6Nm 3 / hour and nitrogen 10.0Nm 3 / hour of gas mixed to form the raw material gas containing titanium tetrachloride preheated to 1,050 ° C, 8Nm 3 / hour of oxygen and 30Nm 3 The mixed gas of water vapor per hour is preheated to 1,100°C, and the gas containing titanium tetrachloride is introduced into the inner tube of the coaxial parallel flow nozzle at the flow rate of 64m / s and 36m / s respectively, and oxygen and oxygen are introduced into the outer tube. Mixture of water vapor. In addition, 6.5 kg / hour of a 20% aqueous solution of magnesium nitrate was sprayed from the outer peripheral portion of the coaxial parallel flow nozzle.

[0104] The calculated value of the flow velocity in the tube at a reaction temperature of 1,000° C. in the reaction tube was 10 m / sec. After the reaction was carried out so that the high...

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Abstract

A process for the vapor-phase production of an oxide composite containing titanium oxide, characterized by preheating a feed gas comprising titanium tetrachloride and an oxidizing gas to 700 DEG C or higher and reacting them with a solution or slurry of a salt containing a metal element to produce a finely particulate oxide composite having a BET specific surface area of 5 to 200 m<2> / g; a titanium oxide-containing oxide composite obtained by the process; and a composition containing the composite. Thus, a finely particulate oxide composite which contains titanium oxide and has a practical value can be produced by the industrially advantageous and simple process.

Description

technical field [0001] The present invention relates to a method for preparing an oxide complex containing titanium oxide by a gas phase method. More specifically, it relates to a method for producing a titanium oxide-containing particulate oxide composite by a vapor phase method using a salt solution or slurry containing titanium tetrachloride and a metal element as a raw material, and a titanium oxide-containing oxide composite obtained by the method. The fine particulate oxide composite body, and the composition containing the composite body. Background technique [0002] The field of industrial application of fine particle titanium oxide has been continuously expanding in recent years. For example, researches on high-performance dielectric materials, ultraviolet shielding materials, additives in silicone rubber, and photocatalytic applications have been ongoing. [0003] The use as a raw material for a perovskite-type dielectric will be described below. [0004] As sh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G23/00C01G23/07C09C1/36
CPCC01P2006/12C01G23/07C01G23/00C01P2004/84C01P2006/13C01P2004/64C09C1/3661C01P2004/62B82Y30/00
Inventor 田中淳富川伸一郎
Owner SHOWA DENKO KK
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