Apparatus and method for recycling ethyl acetate in waste liquid by using super-gravity bed combining membrane separation technology

Abstract

The invention discloses an apparatus and method for recycling ethyl acetate in waste liquid by using a super-gravity bed combining a membrane separation technology. The recycling apparatus comprises a raw material tank, wherein a feeding pump is arranged below the raw material tank, the raw material tank is provided with a first guide pipe, the raw material tank is fixedly connected with the feeding pump by virtue of the first guide pipe, one side surface of the feeding pump is provided with a second guide pipe, one side of the feeding pump is provided with a stripping section, the feeding pump is fixedly connected with the stripping section by virtue of the second guide pipe, the lower surface of the stripping section is provided with a third guide pipe, the stripping section is fixedly connected with a re-boiler by virtue of the third guide pipe, the re-boiler is arranged below the stripping section, the upper surface of the re-boiler is provided with a fourth guide pipe, and the re-boiler is fixedly connected with the stripping section by virtue of the fourth guide pipe. The apparatus has the beneficial effects that the separation efficiency is higher, the dehydration effect is better, the occupied space is smaller, water obtained by virtue of membrane separation is recyclable, and green and environmental friendliness can be realized.

Description

technical field [0001] The invention belongs to the technical field of solvent recovery, in particular to a device and method for recovering ethyl acetate in waste liquid by using a supergravity bed combined with membrane separation technology. Background technique [0002] Ethyl acetate is a common organic solvent, which is widely used in chemical and electronic industries, and can be used as chemical raw materials, cleaning agents, extraction agents, etc. In recent years, with the rapid development of the electronic industry, the demand for ethyl acetate has also Increasingly, the high-quality requirements of electronic products have put forward higher requirements for the purity of ethyl acetate. [0003] Ultra-clean and high-purity electronic chemicals are key raw materials in the electronics manufacturing industry, and their purity and cleanliness have an important impact on the yield, conductivity, and stability of finished products. The higher the purity of high-puri...

AI Technical Summary

Problems solved by technology

[0006] At present, there are very few studies on the preparation of high-purity ethyl acetate directly from the ethyl acetate waste liquid produced by cleaning in the electronics industry.

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