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Production process of bis(trimethoxysilyl)ethane product

A trimethoxysilyl-based and production technology technology, applied in the field of production technology of diethane products, can solve problems such as difficulty in meeting production and life, difficulty in realizing industrialized production in production technology, low product purity, etc., and achieves easy operation and preparation. The effect of increasing the rate of reaction and the high reaction yield

Inactive Publication Date: 2020-04-17
ZHEJIANG KAIHUA SYNTHETIC MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of production technique of bis(trimethoxysilyl)ethane product, to solve the existing bis(trimethoxysilyl)ethane product production technique proposed in the above-mentioned background technology is difficult to realize industrial production, and the purity of the prepared product is low, it is difficult to meet the needs of production and life

Method used

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  • Production process of bis(trimethoxysilyl)ethane product

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Experimental program
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Effect test

Embodiment 1

[0026] A kind of production technique of two (trimethoxysilyl) ethane products, production technique comprises the following steps:

[0027] S1: Preheat the methanol, and the preheated methanol is esterified with the bis(trichlorosilyl)ethane purified by rectification to generate crude bis(trimethoxysilyl)ethane, HCL gas and a small amount Hydrolyzed polymer;

[0028] S2: After the crude product bis(trimethoxysilyl)ethane and a small amount of hydrolyzed polymer are neutralized by sodium methoxide, they are placed in the crude product tank;

[0029] S3: Use a transfer pump to pump the neutralized crude material into the vacuum rectification tower for separation. The front fraction is extracted from the top of the tower, and bis(trimethoxysilyl)ethane is extracted from the bottom material, and the by-product is high boiling. The material is decolorized through a decolorizing tank;

[0030] S4: packing the bis(trimethoxysilyl)ethane to obtain the finished product.

[0031] Fu...

Embodiment 2

[0039] A kind of production technology of two (trimethoxysilyl) ethane products, production technology comprises the following steps:

[0040] S1: Carry out esterification reaction between methanol and distilled and purified bis(trichlorosilyl)ethane to generate crude bis(trimethoxysilyl)ethane, HCL gas and a small amount of hydrolyzed polymer;

[0041] S2: After the crude product bis(trimethoxysilyl)ethane and a small amount of hydrolyzed polymer are neutralized by sodium methoxide, they are placed in the crude product tank;

[0042] S3: Use a transfer pump to pump the neutralized crude material into the vacuum rectification tower for separation. The front fraction is extracted from the top of the tower, and bis(trimethoxysilyl)ethane is extracted from the bottom material, and the by-product is high boiling. The material is decolorized through a decolorizing tank;

[0043] S4: packing the bis(trimethoxysilyl)ethane to obtain the finished product.

[0044] Further, the react...

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Abstract

The invention discloses a production process of a bis(trimethoxysilyl)ethane product. The production process comprises the following steps: preheating methanol, and carrying out an esterification reaction on the preheated methanol and rectified and purified bis(trimethoxysilyl)ethane to generate crude bis(trimethoxysilyl)ethane, HCL gas and a small amount of a hydrolyzed polymer; neutralizing thecrude bis(trimethoxysilyl)ethane and the small amount of the hydrolyzed polymer with sodium methoxide, and putting the neutralized product into a crude product tank; pumping the neutralized crude product material into a vacuum distillation tower by using a delivery pump, performing separation, extracting a front fraction from the top of the tower, extracting bis(trimethoxysilyl)ethane from a material at the bottom of the tower, and decolorizing a byproduct high-boiling residue by using a decolorizing tank; and packaging the bis(trimethoxysilyl)ethane to obtain the finished product. The methanol is preheated, and esterification, neutralization and rectification are carried out, so that the preparation rate of bis(trimethoxysilyl)ethane is high, and the product purity is good.

Description

technical field [0001] The invention relates to the technical field of organic silicon, in particular to a production process of a bis(trimethoxysilyl)ethane product. Background technique [0002] Bis(trimethoxysilyl)ethane is a colorless liquid, soluble in organic solvents, and belongs to a new type of bissilane, that is, there are two silane structures in the same molecular structure, and there are 6 alkoxy groups in one molecule. Twice that of ordinary silane coupling agents, therefore, BTMSE and BTSE can form higher crosslinking density on the surface of inorganic materials, and at the same time, the silanols formed after hydrolysis of the product are compared with those formed by ordinary silane coupling agents The acidity is stronger, so it can form stronger covalent bonds with the hydroxyl groups on the surface of metals and inorganic materials, and it is not easy to be hydrolyzed. The products are widely used in electrical and electronic industries, automobile indust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/18
CPCC07F7/188
Inventor 陈道伟程利航余晖操伟祥于湛川
Owner ZHEJIANG KAIHUA SYNTHETIC MATERIAL
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