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Method for prolonging cycle of oparation of pimelinketone device and equipment thereof

A technology of operation cycle and cyclohexanone, applied in chemical instruments and methods, preparation of organic compounds, preparation of carbon-based compounds, etc., can solve problems such as complex process and high investment cost

Active Publication Date: 2008-01-23
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can solve the effective separation of saponification waste lye, it has the disadvantages of complicated process and high investment cost.

Method used

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  • Method for prolonging cycle of oparation of pimelinketone device and equipment thereof
  • Method for prolonging cycle of oparation of pimelinketone device and equipment thereof
  • Method for prolonging cycle of oparation of pimelinketone device and equipment thereof

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Experimental program
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Effect test

Embodiment

[0080] Taking the largest commercial cyclohexanone production base in my country, which was completed and put into operation in April 2005-the waste alkali separation system transformation of the 80,000 tons / year cyclohexanone production unit of the Cyclohexanone Division of Sinopec Baling Petrochemical Co., Ltd. As an example, the implementation effect of this technology will be described.

[0081] (1) Analysis method

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Abstract

A method lengthening the cyclohexanone device continuous running period and equipment are provided. The method can completely and effectively separate the oxidation solution waste alkali of the cyclohexanone and realize the low energy consumption, small investment and pollution, which is suitable for the stable running for long period.

Description

technical field [0001] The invention relates to a method for extending the continuous operation period of a cyclohexanone device. More specifically, it relates to a dealkalization method in which alkaline substances are enriched by injecting water first, and then cyclohexanone is separated from alkaline water, organic acids and esters by cyclohexanone production process. The invention also relates to equipment for extending the continuous operation period of a cyclohexanone plant. Background technique [0002] As an important organic chemical product, cyclohexanone has a wide range of uses, and our country imports cyclohexanone equivalent to 30-50% of domestic production every year. In the production process of cyclohexanone, the oxidation liquid produced by the oxidation process is treated with a strong alkali (3-5% sodium hydroxide) aqueous solution in the decomposition kettle to generate water, sodium hydroxide, organic acid sodium salt, Organic oligomers are the main c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C49/403C07C45/33
Inventor 汪华林周萍白志山马吉杨强钱卓群
Owner EAST CHINA UNIV OF SCI & TECH
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