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Energy-conserving process for washing and dedusting by methyl monomer synthesis gas

A technology for washing dust and synthesizing gas, which is applied in the chemical industry, climate sustainability, sustainable manufacturing/processing, etc., to achieve the effects of reducing energy consumption, saving cooling consumption, saving heat and cooling consumption

Active Publication Date: 2011-03-16
BEIJING PETROCHEM ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

also known as organochlorosilane

Method used

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  • Energy-conserving process for washing and dedusting by methyl monomer synthesis gas
  • Energy-conserving process for washing and dedusting by methyl monomer synthesis gas

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Experimental program
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Effect test

Embodiment

[0029] The high-temperature organochlorosilane synthesis gas from the fluidized bed reactor for chlorosilane synthesis enters the scrubber 1 from the organochlorosilane synthesis gas inlet 10 below the scrubber after passing through primary and secondary cyclone separators for preliminary dust removal. In the washing tower, the high-temperature organic chlorosilane synthesis gas containing dust and the condensed reflux liquid with a relatively high boiling point are further dedusted through reverse contact to achieve the purpose of dedusting and purification.

[0030] The purified organic chlorosilane synthesis gas obtained from the top of the washing tower 1 enters a condenser 2, and the temperature of the tower top gas after washing and dust removal is about 82.2°C. The first condenser at the top of the washing tower uses 20-40°C circulating water as a cooling medium for cooling and condensation. The temperature of the condensate is controlled at 35-45°C.

[0031] The conden...

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Abstract

The invention relates to a scrubbing dust-removal energy-saving process of organosilicon monomer synthesis gas. Scrubbing gas is processed through first condensation and second condensation; liquor condensate of a condensator with relatively higher boiling point is used for partial reflux, and contacts with high-temperature organic-chlorosilane synthesis gas containing dust in a converse manner so as to perform dust removal purification, so qualified organic-chlorosilane synthesis gas is obtained, and the purpose of energy conservation is served.

Description

technical field [0001] The invention relates to a process for washing and dedusting organic silicon monomer synthesis gas products, in particular to a new energy-saving process for washing and dedusting methyl monomer synthesis gas. Background technique [0002] Methyl monomer is the abbreviation of methyl chlorosilane monomer, including monomethyl dichlorohydrogen silane, dimethyl dichlorosilane, trimethyl monochlorosilane and low boiling and high boiling substances. The synthesis of methyl monomers uses silicon powder and methyl chloride as raw materials to directly synthesize methylchlorosilane under the action of a copper catalyst system. The main target product is dimethyldichlorosilane (dimethyl for short). The synthesis of methylchlorosilane is the core technical part of organosilicon monomer production. Its reaction mechanism is complex, with many side reactions, high dimethyl selectivity and low raw material and energy consumption are the long-term goals of organic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F7/16
CPCY02P20/10
Inventor 孟祥凤谷学谦崔慧王维东伊港赵玉芳
Owner BEIJING PETROCHEM ENG
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