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High-flux liquid-liquid extraction microfluidic device and extraction method thereof

A microfluidic device and high-throughput technology, applied in liquid solution solvent extraction, separation methods, countercurrent extraction, etc., can solve problems that are not suitable for continuous large-scale production

Inactive Publication Date: 2019-10-18
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Most of the above existing liquid-liquid extraction microfluidic devices are single-channel, which is not suitable for continuous large-scale production

Method used

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  • High-flux liquid-liquid extraction microfluidic device and extraction method thereof
  • High-flux liquid-liquid extraction microfluidic device and extraction method thereof
  • High-flux liquid-liquid extraction microfluidic device and extraction method thereof

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Experimental program
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Effect test

Embodiment 1

[0033] In this embodiment, copper ions are extracted in the same direction.

[0034] The prepared copper ion solution is stored in the water phase inlet liquid collection chamber 4, the extractant is stored in the oil phase inlet liquid collection chamber 1, and pressurized simultaneously, the water phase (copper ion solution) and the oil phase (extractant) Enter the contact extraction microchannel 5 through the water phase inlet microchannel 3 and the oil phase inlet microchannel 2 respectively. After the extraction, the extractant containing copper ions flows into and is stored in the oil phase outlet liquid collection cavity 7 through the oil phase outlet microchannel 6, and the extracted copper ion solution flows into and is stored in the liquid phase outlet collection chamber 8 through the water phase outlet microchannel 8. In the liquid chamber 9.

[0035] At the beginning, the water phase (copper ion solution after extraction) and the oil phase (containing The extract...

Embodiment 2

[0037] In this embodiment, reverse extraction of copper ions of copper ions is carried out.

[0038] The positions of the oil phase inlet liquid collection chamber 1 and the oil phase outlet liquid collection chamber 7 are exchanged. The prepared copper ion solution is stored in the liquid collection chamber 4 at the inlet of the water phase, and the extractant is stored in the liquid collection chamber 1 at the inlet of the oil phase. First pressurize the water phase inlet liquid collection chamber 4, and the copper ion solution enters the contact extraction microchannel 5 through the water phase inlet microchannel 3. After the flow rate of the copper ion solution is stable, pressurize the oil phase inlet liquid collection chamber 1, so that the extractant enters the contact extraction microchannel 5 through the oil phase inlet microchannel 2. After the extraction, the extractant containing copper ions flows into and is stored in the oil phase outlet liquid collection cavity...

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Abstract

The invention discloses a high-flux liquid-liquid extraction microfluidic device and an extraction method thereof. The high-flux liquid-liquid extraction microfluidic device comprises a water phase inlet liquid collecting cavity, an oil phase inlet liquid collecting cavity, a water phase outlet liquid collecting cavity, an oil phase outlet liquid collecting cavity, a water phase inlet micro-channel, an oil phase inlet micro-channel, a contact extraction micro-channel, a water phase outlet micro-channel and an oil phase outlet micro-channel; the water phase inlet micro-channel and the oil-phaseinlet micro-channel are connected with one end of the contact extraction micro-channel, and the other end of the contact extraction micro-channel is connected with the water phase outlet micro-channel and the oil phase outlet micro-channel; and the other ends of the water phase inlet micro-channel, the oil phase inlet micro-channel, the water phase outlet micro-channel and the oil phase outlet micro-channel are respectively connected with the water phase inlet liquid collecting cavity, the oil phase inlet liquid collecting cavity, the water phase outlet liquid collecting cavity and the oil phase outlet liquid collecting cavity. The extraction method of the high-flux liquid-liquid extraction microfluidic device comprises co-extraction and reverse extraction. By using the high-flux liquid-liquid extraction microfluidic device and the extraction method thereof, a sample solution and an extractant can be continuously introduced and stably conveyed, the fluid contact area and the extraction efficiency are increased, and the high-flux liquid-liquid extraction microfluidic device and the extraction method thereof are suitable for extracting a plurality of metal ions.

Description

technical field [0001] The invention relates to a high-throughput microfluidic device for extracting target metal ions in an aqueous solution by using liquid-liquid, and belongs to the technical field of metal ion extraction. Background technique [0002] Microfluidic environments exhibit small fluid sizes and thus high specific surfaces for rapid heat and mass transfer. Existing microfluidic technologies are mainly used to process high-value or rare samples. These applications are usually limited to low flow rates. Microfluidic systems are especially suitable for analyzing small sample sizes, usually using nanoliter or even picoliter samples. The development of microfluidic high-throughput systems helps to improve the throughput and output of microfluidics, and high-throughput microfluidic devices can be used in industrial production. [0003] Chinese Patent Document CN103459622A discloses "A Method for Extracting Gold Ions Using Microfluidics". CN103348024B discloses "A ...

Claims

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Application Information

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IPC IPC(8): B01D11/04B01L3/00
CPCB01D11/0496B01D2011/002B01D2011/005B01L3/5027
Inventor 王贵超陈颂英孙逊钱年李清玉
Owner SHANDONG UNIV
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