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Preparation method of high activity cuprous chloride catalyst used for organic silicon monomer synthesis

A cuprous chloride, high-activity technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalyst, cupric chloride, etc., can solve the problems of high energy consumption and cumbersome operation process

Inactive Publication Date: 2005-03-23
TSINGHUA UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of cumbersome operation and high energy consumption in the existing preparation process of cuprous chloride catalyst, and propose a preparation process of highly active cuprous chloride catalyst suitable for the production of organosilicon monomers

Method used

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  • Preparation method of high activity cuprous chloride catalyst used for organic silicon monomer synthesis
  • Preparation method of high activity cuprous chloride catalyst used for organic silicon monomer synthesis
  • Preparation method of high activity cuprous chloride catalyst used for organic silicon monomer synthesis

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific examples.

[0020] Such as figure 1 Shown, saturated Na 2 SO 3 Add the solution and a certain amount of dispersant into the first mixer 1 to fully dissolve the dispersant; at the same time, add NaCl and CuSO 4 Add deionized water into the second mixer 2 according to the mass ratio of 0.5-2, and the composition contains 10-30% CuSO 4 , 5 ~ 60% NaCl mixed solution. The solution from the first mixer 1 and the solution from the second mixer 2 are uniformly heated to 30-100°C, optimally 60-90°C, and then enter the final mixer according to the mass ratio of 1:1-5:1 3, fully stirred and mixed, and then the reduction reaction occurred while keeping the temperature constant. The added amount of the dispersant is 0.05-5% of the total mass of the solution in the final mixer 3 . After stirring for 0.5-5 hours, the mixed solution containing the precipitated CuCl is ...

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Abstract

A coprous chloride catalyst used for preparing organosilicon monomer with high activity, selectivity and output rate is prepared through reduction reaction for reducing the mixed solution of Cu and Cl ions by SO3 solution while adding disperser for controlling the granularity and form of product, liquid-solid separation, acid washing, alcohol washing, filtering washing and drying.

Description

technical field [0001] The invention relates to a new process for preparing a high-activity catalyst used in the synthesis of organosilicon monomers, belonging to the technical field of chemical industry. technical background [0002] Silicone refers to a general term for a large class of polymers containing O-Si-O main chains and organic groups bonded to Si atoms. With its special structure and excellent performance, it is widely used in various sectors of the national economy. Organosilicon materials are usually prepared by hydrolysis of organosilicon monomers (mainly methylchlorosilane), while organosilicon monomers are generally synthesized on a large scale by the Rochow direct method. In the Rochow direct method, Si and CH 3 Cl reacts under the action of copper-based catalyst to directly generate various methylchlorosilane monomers. [0003] Cuprous chloride is a widely used copper-based catalyst. The traditional process for preparing cuprous chloride catalyst is to...

Claims

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Application Information

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IPC IPC(8): B01J27/10B01J37/16C01G3/05C07F7/02
Inventor 王金福罗务习王光润
Owner TSINGHUA UNIV
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