Micro-contact mixer

A mixer and micro-contact technology, applied in mixing methods, chemical instruments and methods, dissolution and other directions, can solve the problems of difficult to meet large-scale production in chemical processes, high equipment costs, and difficult processing, and achieve uniform and controllable residence time. , The equipment has a compact structure, and the effect of saving manufacturing materials and space

Active Publication Date: 2008-08-06
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of size, microchannel reactors are only suitable for clean material systems; their processing capacity is sma

Method used

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  • Micro-contact mixer

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1

[0018] Adopt n-butanol to extract succinic acid, for the double continuous multi-thin-layer micro-contact mixer that contains 10 parallel passages, when oil phase (material A) volume flow rate: when water phase (material B) volume flow rate is 1: 1, When the residence time is 0.21s, the extraction efficiency is 97.6%. The processing capacity of succinic acid solution can reach 60L / h, and the processing capacity of each channel is 12L / h.

Example Embodiment

[0019] Example 2

[0020] Adopt n-butanol to extract phosphoric acid, for the double continuous multi-thin-layer micro-contact mixer that contains 20 parallel passages, when oil phase (material A) volume flow rate: water phase (material B) volume flow rate is 1: 1, when staying When the time is 0.23s, the extraction efficiency is 98.3%. The processing capacity of phosphoric acid solution can reach 100L / h, and the processing capacity of each channel is 10L / h.

Example Embodiment

[0021] Example 3

[0022] Adopt 30%TBP-kerosene to extract nitric acid, for the double continuous multi-thin-layer micro-contact mixer that contains 16 parallel passages, when oil phase (material A) volume flow: when water phase (material B) volume flow is 1: 1, When the residence time is 0.25s, the extraction efficiency is 99.1%. The treatment capacity of nitric acid solution can reach 150L / h, and the treatment capacity of each channel is 18L / h.

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Abstract

The invention relates to a high performance double multiple thin layer micro-contact mixer used for rapid mix, mass transfer and reaction of fluids in the chemical process, which belongs to the field of reaction and separation devices of chemistry and chemical engineering. The micro-contact mixer is formed by inserting an upper cavity chamber and a lower cavity chamber into an integral shell or by lapping closely connected shell components; a fluid inlet pipe of material A and a distribution chamber are communicated with a fluid parallel channel of material A; a fluid inlet pipe of material B and a distribution chamber are communicated with a fluid parallel channel of material B, thus forming the lower cavity chamber; a fluid mixing chamber and a mixed fluid outlet pipe are communicated to form the upper cavity chamber; two fluids enter the mixer from the inlet pipe through the distribution chamber respectively to make multiple thin layer contact in the fluid mixing chamber to realize rapid mix, mass transfer and reaction. The micro-contact mixer has the advantages of high mass transfer efficiency, high operational elasticity, uneasy blocking, easy processing and manufacturing and has good prospects in mixing and reaction fields such as the chemistry, chemical engineering, petrol-chemical industry, medicine and food.

Description

technical field [0001] The invention belongs to chemical reaction and separation devices, in particular to a high-performance, double-continuous multi-thin-layer micro-contact mixer for rapid mixing, mass transfer and reaction of fluids in chemical processes. Background technique [0002] In many fields such as chemistry, chemical industry, petrochemical, pharmaceutical and food, especially the reaction and separation process of chemical industry, it is necessary to carry out the mixing and reaction between two or more strands of materials, and the mixing performance has a very important influence on the reaction process. Commonly used mixing equipment includes mixing tanks and static mixers, etc. The former has a large volume and a longer residence time, while the latter has insufficient mixing, and neither of them can effectively strengthen and control microscopic mixing. In recent years, with the continuous development of micro-device processing technology, researchers ha...

Claims

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Application Information

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IPC IPC(8): B01J19/00B01J14/00B01F3/08
Inventor 骆广生徐建鸿吕阳成李少伟邵华伟
Owner TSINGHUA UNIV
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