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Solvent extraction method and solvent extraction device

An extraction equipment and extraction agent technology, applied in the field of mass transfer and separation, can solve the problems of high energy consumption for stirring or pulse, back-mixing, waste of tower height, etc., and achieve the effect of reducing material consumption, less back-mixing, and lower height

Inactive Publication Date: 2020-02-18
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the input of energy, it also leads to serious back-mixing between the two phases, waste of up to 90% of the tower height, and high energy consumption for stirring or pulses.

Method used

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  • Solvent extraction method and solvent extraction device
  • Solvent extraction method and solvent extraction device
  • Solvent extraction method and solvent extraction device

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0028] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The embodiment of the invention provides a solvent extraction method and a solvent extraction device, and relates to the field of mass transfer separation. The method comprises the following steps: discharging a mixed liquid phase formed by mixing a mixed solution and an extraction agent from a mixing container, and introducing the mixed liquid phase into a clarification container to carry out two-phase separation. The device comprises the mixing container and a clarification container, wherein the mixing container is provided with a mixed liquid inlet, an extracting agent inlet and a mixed liquid phase outlet; the clarification container is provided with a light phase outlet, a heavy phase outlet and a mixed liquid phase inlet; and the mixed liquid phase outlet is communicated with the mixed liquid phase inlet. According to the method and device, the mixing mass transfer process and the clarification process are conducted in the two independent tank bodies of the mixing container andthe clarification container respectively and do not interfere with each other, back mixing can be reduced, the extraction efficiency can be improved, and the treatment amount can be increased.

Description

technical field [0001] The invention relates to the field of mass transfer separation, in particular to a solvent extraction method and solvent extraction equipment. Background technique [0002] Solvent extraction is a mass transfer separation method widely used in petrochemical, nuclear industry, medicine, environmental protection and other fields. Its working principle is to add an immiscible or partially miscible liquid extractant to the mixed liquid to be separated to form a mixed The liquid-extractant two-phase system uses the distribution difference of each component in the mixed liquid in the two phases to make some components in the mixed liquid enter into the extraction phase more and realize the separation of the mixed liquid. The solvent extraction method has the advantages of continuous operation, fast mass transfer rate and short production cycle. When multi-stage extraction is used, the solute concentration factor is large and the degree of purification is hig...

Claims

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Application Information

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IPC IPC(8): B01D11/04
CPCB01D11/04
Inventor 杜招鑫高有飞赵远方王长岭侯玉兰李燕凤孙国超张继生
Owner CHINA PETROLEUM & CHEM CORP
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