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Production device and process of methanol alkali metal salts

A technology for alkali metal salt of methanol and production device, which is applied in the preparation of alcohol metal, chemical instruments and methods, preparation of organic compounds, etc., can solve problems such as high energy consumption, and achieve reduction of steam consumption, reduction of steam consumption, and reduction of steam consumption. amount of effect

Active Publication Date: 2013-11-13
重庆渝化新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide a production device and process of an alkali metal methanol salt with high efficiency and low energy consumption, thereby overcoming the defect of high energy consumption existing in the production process of an alkali metal methanol salt in the prior art

Method used

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  • Production device and process of methanol alkali metal salts
  • Production device and process of methanol alkali metal salts

Examples

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Embodiment 1

[0046] Add solid alkali metal hydroxide (sodium hydroxide or potassium hydroxide) into the alkali-dissolving tank, use a feed pump to drive a certain amount of methanol into the alkali-dissolving tank, and dissolve the solid alkali in circulation, and use circulating water to control the dissolution. The temperature in the alkali tank is kept at 50°C, and the alkali metal hydroxide content in the alkali alcohol solution reaches 20%, forming a qualified alkali solution for future use.

[0047] Pass industrial methanol (methanol 99.5%, water 0.5%, temperature 40°C, flow rate 165kg / h) into the methanol evaporator 5, when the liquid level reaches 90%, enter the jacket with 0.6Mpa, temperature 160°C saturated steam Heating, injecting methanol into rectifying tower 1 after heating, making methanol gasify in rectifying tower 1 tower kettle. After the tower top pressure reaches slightly positive pressure, methanol no longer enters the rectification tower 1 from the evaporator 5, but e...

Embodiment 2

[0052] Add solid alkali metal hydroxide (sodium hydroxide or potassium hydroxide) into the alkali-dissolving tank, use a feed pump to drive a certain amount of methanol into the alkali-dissolving tank, and dissolve the solid alkali in circulation, and use circulating water to control the dissolution. The temperature in the alkali tank is kept at 50°C, and the alkali metal hydroxide content in the alkali alcohol solution reaches 20%, forming a qualified alkali solution for future use.

[0053] Pass industrial methanol (methanol 99.5%, water 0.5%, temperature 40°C, flow rate 165kg / h) into the methanol evaporator 5, when the liquid level reaches 90%, enter the jacket with 0.6Mpa, temperature 160°C saturated steam Heating, injecting methanol into rectifying tower 1 after heating, making methanol gasify in rectifying tower 1 tower kettle. After the tower top pressure reaches slightly positive pressure, methanol no longer enters the rectification tower 1 from the evaporator 5, but e...

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Abstract

The invention relates to a production device and a preparation process of methanol alkali metal salts. The production device comprises a rectifying tower (1) and a reaction tower (3), wherein after methanol steam generated from the top of the rectifying tower (1) is compressed through at lease one steam compressor, one part of the methanol steam is introduced into a reboiler (2) to heat low-temperature materials circulated out of the bottom of the rectifying tower (1), while the other part of the methanol steam is separated by a gas-liquid separator (11) and then introduced into the reaction tower (3) to react with an alkali liquor; the steam on the top of the reaction tower (3) is introduced into the rectifying tower (1) and thereby recycled. According to the invention, the rectifying system and the reaction system are combined organically; the compressed methanol steam is utilized rationally, so that steam consumption at the rectifying stage and the reaction stage in the traditional process is greatly reduced; compared with the traditional process, the steam consumption of the production device and the preparation process per hour is more than 20% lower than that of the previous process.

Description

technical field [0001] The invention relates to a production device and a process of an alkali metal salt in the field of chemical product preparation, in particular to a production device and a preparation process of a methanol alkali metal salt. Background technique [0002] Methanol alkali metal salt is a common reagent in the field of medicine and chemical industry. It is used as a condensation agent, chemical reagent, and catalyst for edible oil treatment in organic synthesis. The traditional methanol alkali metal salt preparation process is to mix the solid alkali metal hydroxide and methanol solution to prepare a certain concentration of lye, and then react the prepared lye with methanol gas in the reaction tower to keep the lye in the reaction system. Stabilize the reaction, and the generated methanol alkali metal salt product enters the receiving tank. [0003] Through research and analysis, it is found that the traditional methanol alkali metal salt prepar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C31/30C07C29/70C07C29/80
Inventor 韦异勇覃玉芳郑浩刘桢
Owner 重庆渝化新材料有限责任公司