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A dynamic magnetic particle combined membrane extraction device and extraction method

The technology of extraction device and magnetic particle is applied in the field of dynamic magnetic particle combined membrane extraction device, which can solve the problem of uneven distribution of fluid, and achieve the effects of uniform distribution of fluid, improved extraction efficiency and good application prospect.

Active Publication Date: 2019-11-08
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the deficiencies in the prior art, the object of the present invention is to provide a dynamic magnetic particle composite membrane extraction device, which avoids the uneven distribution of fluid that may occur in the long-term use of the fixed magnetic particle composite membrane, and the magnetic particles of the fixed magnetic particle composite membrane The problem of clogging due to the accumulation of organic phase inside the thin layer improves the extraction efficiency

Method used

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  • A dynamic magnetic particle combined membrane extraction device and extraction method
  • A dynamic magnetic particle combined membrane extraction device and extraction method
  • A dynamic magnetic particle combined membrane extraction device and extraction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] In this example, the volume ratio of TBP extractant and sulfonated kerosene diluent is 2:8, and they are mixed to form an organic extract phase. The feed liquid phase is an aqueous solution containing propionic acid, the concentration of propionic acid is 0.405mol / L, and the pH value of the solution is 2.63. Among them, in the dynamic magnetic particle combination film, the magnetic particles used are Fe-containing 3 0 4 Magnetic particles, the particle size of the magnetic particle 9 is about 500 μm, and the thickness of the magnetic particles is about 3 mm; steel wire mesh is used as a thin layer bedding, and its aperture is 10 μm; the sieve plate is plexiglass, covered with pores with an aperture of 5 mm , the porosity is 24%, and the effective area of ​​thin layer bedding is 20.25cm 2 The amplitude of the magnet transmission device is 10cm, and the rotation frequency is 20 rpm. The magnets used are cylindrical magnets, the S level is upward, and the magnetic parti...

Embodiment 2

[0066] In this example, the volume ratio of TBP extractant and sulfonated kerosene diluent is 3:7, and they are mixed to form an organic extract phase. The feed liquid phase is an aqueous solution containing propionic acid, the concentration of propionic acid is 0.405mol / L, and the pH value of the solution is 2.63. Among them, in the dynamic magnetic particle combination film, the magnetic particles used are Fe-containing 3 0 4 Magnetic particles, the particle size of the magnetic particle 9 is about 500 μm, and the thickness of the magnetic particles is about 3 mm; steel wire mesh is used as a thin layer bedding, and its aperture is 10 μm; the sieve plate is plexiglass, covered with pores with an aperture of 5 mm , the porosity is 24%, and the effective area of ​​thin layer bedding is 20.25cm 2 The amplitude of the magnet transmission device is 12cm, and the rotation frequency is 40 rpm. The magnets used are cylindrical magnets, the S level is upward, and the magnetic parti...

Embodiment 3

[0068] In this example, the volume ratio of TBP extractant and sulfonated kerosene diluent is 4:6, and they are mixed to form an organic extract phase. The feed liquid phase is an aqueous solution containing propionic acid, the concentration of propionic acid is 0.405mol / L, and the pH value of the solution is 2.63. Among them, in the dynamic magnetic particle combination film, the magnetic particles used are Fe-containing 3 0 4 Magnetic particles, the particle size of the magnetic particle 9 is about 500 μm, and the thickness of the magnetic particles is about 3 mm; steel wire mesh is used as a thin layer bedding, and its aperture is 10 μm; the sieve plate is plexiglass, covered with pores with an aperture of 5 mm , the porosity is 24%, and the effective area of ​​thin layer bedding is 20.25cm 2 The amplitude of the magnet transmission device is 8cm, and the rotation frequency is 50 rpm. The magnets used are cylindrical magnets, the S level is upward, and the magnetic partic...

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Abstract

The invention provides a dynamic magnetic-particle combined membrane extracting device and method. The extracting device comprises a tower body, an extraction phase storage chamber, a porous screen plate, a dynamic magnetic-particle combined membrane, a magnet and a magnet transmission device. The extraction phase storage chamber is located below the tower body, the porous screen plate and the dynamic magnetic-particle combined membrane are sequentially arranged between the extraction phase storage chamber and the tower body from bottom to top, and the magnet and the magnet transmission deviceare arranged below the extraction phase storage chamber. The magnet transmission device of the dynamic magnetic-particle combined membrane extracting device drives the magnet to move vertically, thinmagnetic-particle layers in the dynamic magnetic-particle combined membrane are constantly re-arranged and combined, an extraction phase constantly forms small liquid drops dispersed in a liquid phase, and blockage or ununiform fluid distribution does not occur. Magnetic particles are close to and move towards a magnetic field again to produce the crushing effect on disperse phase liquid drops, formation of small liquid drops is facilitated, meanwhile a channeling phenomenon can be effectively prevented, and the extraction efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of magnetic particle combined membrane extraction and separation, and relates to a dynamic magnetic particle combined membrane extraction device and an extraction method. Background technique [0002] In recent years, with the development of industry, extraction technology has been widely used in chemical industry, pharmaceutical industry, petroleum industry and other fields, but at the same time, traditional extraction technology is becoming more and more difficult to meet the needs of modern industrial development. Traditional extraction equipment is generally divided into mixing clarifiers, extraction towers and centrifugal extractors. The mixing and settling tank extraction process has problems such as high mass transfer efficiency, but the equipment occupies a large area; there are many types of traditional extraction tower equipment, and the application is more The most widely used are packed extractio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D11/04B01D61/00
CPCB01D11/04B01D11/0419B01D11/043B01D11/0484B01D61/00
Inventor 杨良嵘冯冬惠俊峰安震涛刘会洲
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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