Method and device for treating dimethyldichlorosilane hydrolysate
A technology of dimethyldichlorosilane and hydrolyzate, applied in chemical instruments and methods, chemical/physical process, chemical/physical/physical-chemical process, etc., can solve problems such as utilization effect and water is not easy to remove
Pending Publication Date: 2022-02-01
XINJIANG JINGSHUO NEW MATERIALS CO LTD +1
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[0003] The purpose of the embodiments of the present invention is to provide a treatment method and device for dimethyldichlorosilane hydrolyzate, to solve the problem that the water contained in the HCl gas coming out of the tower top during the hydrolysis of dimethyldichlorosilane is not easy to remove, Issues that will affect subsequent use
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[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0040] The terms "first", "second" and the like in the description and claims of the present invention are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the data so used can be interchanged under appropriate circumstances such that the embodiments of the invention can be practiced in sequences other than those illustrated or described herein. In addition, "and / or" in the s...
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The invention discloses a method and a device for treating dimethyldichlorosilane hydrolysate, and the method comprises the following steps: performing hydrolysis reaction on dimethyldichlorosilane and concentrated hydrochloric acid to obtain a hydrolysate; separating the hydrolysate, and obtaining a first mixture, wherein the first mixture comprises water-containing hydrogen chloride; and absorbing water in the first mixture by using a high-boiling-point substance, wherein the high-boiling-point substance contains chlorosilane. According to the treatment method of the dimethyldichlorosilane hydrolysate, the hydrolysate of dimethyldichlorosilane and concentrated hydrochloric acid is separated to obtain the first mixture, the first mixture comprises water-containing hydrogen chloride, water in the first mixture can be absorbed by using the high-boiling-point substance, the high-boiling-point substance contains chlorosilane, the high-boiling-point substance is high in boiling point and difficult to volatilize, and chlorosilane in the high-boiling-point substance is quickly hydrolyzed when encountering water, so that water in hydrogen chloride can be removed, the water removal efficiency is high, the water removal effect is good, and no new impurity is introduced.
Description
technical field [0001] The invention belongs to the technical field of organic silicon, and in particular relates to a treatment method and device for a dimethyldichlorosilane hydrolyzate. Background technique [0002] In the production of organic silicon, during the hydrolysis process of dimethyldichlorosilane, the HCl gas from the top of the tower contains a small amount of water. After the recovery of HCl, it needs to be dehydrated and then participate in the synthesis of methyl chloride. Due to the presence of water, it will affect the subsequent Utilization has an impact, the existing water removal effect is not good, and the cost is high. Contents of the invention [0003] The purpose of the embodiments of the present invention is to provide a treatment method and device for dimethyldichlorosilane hydrolyzate, to solve the problem that the water contained in the HCl gas coming out of the tower top during the hydrolysis of dimethyldichlorosilane is not easy to remove,...
Claims
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IPC IPC(8): B01J19/00C01B7/07
CPCB01J19/00C01B7/07B01J2219/00006
Inventor 陆家兴陈国辉李军杨银银杜鹃鲜杨玲
Owner XINJIANG JINGSHUO NEW MATERIALS CO LTD