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Ethyl acetate-water system supergravity distillation separation method

A technology of ultra-gravity rectification and ethyl acetate, which is applied in the preparation of carboxylate, chemical instruments and methods, preparation of organic compounds, etc., can solve the problems of low separation efficiency, low separation purity, bulky volume, etc., and achieves a simple process. , improve the purity and recovery efficiency, the effect of low energy consumption

Inactive Publication Date: 2018-06-12
UNIV OF JINAN
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AI Technical Summary

Problems solved by technology

Conventional gas-liquid mass transfer equipment such as packed towers are used to process the equipment by means of rectification. The equipment is bulky, high energy consumption, low separation efficiency, and low separation purity.

Method used

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  • Ethyl acetate-water system supergravity distillation separation method

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0025] A kind of ethyl acetate-water system high-gravity rectification recovery device, such as figure 1 Shown, by ethyl acetate-water storage tank 1, ethyl acetate-water pump 2, ethyl acetate-water flow meter 3, reboiler 4, separating liquid pump 5, baffle type supergravity rectification machine 6, regulator Speed ​​motor 7, finished product storage tank 8, finished product flow meter 9, finished product pump 10, condenser 11, return flow meter 12 and corresponding connecting pipelines.

[0026] A kind of ethyl acetate-water system high-gravity rectification separation method adopts figure 1 The separation process shown:

[0027] (1) The separation system is ethyl acetate-water with a volume fraction of 10-45%, which is transported from the ethyl acetate-water storage tank 1 to the baffle type high-gravity rectifier 6 through the ethyl acetate-water pump 2...

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Abstract

The invention provides an ethyl acetate-water system supergravity distillation separation method. An ethyl acetate-water system supergravity distillation separation device is composed of an ethyl acetate-water storage tank, an ethyl acetate-water pump, an ethyl acetate-water flow meter, a reboiler, a separation liquid pump, a baffling supergravity distillation machine, a speed regulating motor, afinished product storage tank, a finished product flow meter, a finished product pump, a condenser, a reflux flow meter and corresponding connecting pipelines. A continuous separation recycling process using the baffling supergravity distillation machine is adopted, so that separation time can be shortened greatly, purity of recycled ethyl acetate and recycling efficiency are improved, and occupied space of conventional distillation separation equipment is saved. The method is simple in process, low in energy consumption and capable of realizing industrial production.

Description

technical field [0001] The invention relates to the technical field of chemical separation, in particular to an ethyl acetate-water system high-gravity rectification separation method. Background technique [0002] Organic solvents, such as ethyl acetate, methanol, and acetonitrile, are used in the production process of pesticides, medicines, and fine chemicals. After use, organic solvents contain a large amount of water and need to be removed for recycling. Generally, traditional gas-liquid mass transfer equipment such as packed towers are used for rectification. Under the conventional gravity field in the tower equipment, the liquid film flows slowly and the mass transfer coefficient is low, so the equipment is bulky and the space utilization rate is low. , Low production efficiency. [0003] The high-gravity distillation machine is a new type of equipment that uses the principle of high-gravity technology to strengthen the gas-liquid mass transfer process. Its essence is...

Claims

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Application Information

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IPC IPC(8): C07C67/54C07C69/14
CPCC07C67/54C07C69/14
Inventor 陈中合李玉川王瑞
Owner UNIV OF JINAN
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