Methyl chlorosilane synthesis equipment and shutdown method

Abstract

The invention discloses methyl chlorosilane synthesis equipment and a shutdown method. The shutdown method comprises that the adding of reaction raw materials into a fluidized bed reactor is stopped when the reaction temperature of the fluidized bed reactor is lower than a preset temperature; and nitrogen is introduced into the fluidized bed reactor at a first feeding speed to blow the mixture inthe fluidized bed reactor into a recovery system, wherein the recovery system is used for recovering chloromethane and methyl chlorosilane from the mixture. According to the present invention, nitrogen is introduced into the fluidized bed reactor at the first feeding speed to blow the remaining mixture into the recovery system, and the chloromethane and the methyl chlorosilane monomer are recovered by the recovery system, such that the waste of reaction raw materials and reaction products can be reduced.

Description

technical field [0001] The application relates to the technical field of organosilicon chemistry, in particular to methylchlorosilane synthesis equipment and parking methods. Background technique [0002] Methyl chlorosilane is the backbone of the field of organosilicon chemistry. Most of the organosilicon products are polymethyl siloxane obtained by hydrolysis of methyl chlorosilane, and then processed with regulators, crosslinking agents, and capping agents. become. Methylchlorosilane is usually synthesized by batch operation. After the equipment for synthesizing methylchlorosilane has been working continuously for a period of time, the synthesis equipment needs to be shut down, so as to add catalyst or repair the synthesis equipment. [0003] The structural representation of present methyl chlorosilane synthesis equipment is as figure 1 As shown, a fluidized bed reactor 11 and a water washing tower 12 are included. During the shutdown process of the synthesis equipment...

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Problems solved by technology

[0004] The embodiment of the present application provides methyl chlorosilane synthesis equipment and a parking method, which are used to solve the problem of a large amount of waste of reaction raw materials such as remaining silicon powder in the prior art

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