Lithium ion extraction device and extraction method based on ion concentration polarization effect

A concentration polarization and extraction device technology, which is applied in the field of lithium ion extraction devices based on ion concentration polarization effect, can solve problems such as high cost and instrument dissolution, and achieves high reliability, strong feasibility, and extraction method. simple effect

Active Publication Date: 2022-03-15
HEBEI UNIV OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of these methods have a series of problems such as instrument dissolution loss and high cost, and most of the methods are only used for brine with low magnesium-lithium ratio.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lithium ion extraction device and extraction method based on ion concentration polarization effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] Such as figure 1 As shown, a lithium ion extraction method based on the ion concentration polarization effect, its basic principle system includes a main channel 2, a main channel inlet 1, a main channel outlet 12, a lithium-rich solution chamber 9 and a buffer solution chamber 16 , the main channel 2 is successively provided with a longitudinal barrier block 4, a number of evenly distributed transverse barrier blocks 5, a narrow channel 6 for solution circulation, a wide channel 15 for solution circulation and an anion selective permeation membrane 13, and the anion selective permeation membrane 13 has It is conductive and only allows anions to pass through, but cannot pass through cations and water; the main channel 2 is connected to the buffer solution c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a lithium ion extraction device based on the ion concentration polarization effect and an extraction method thereof. A horizontal barrier block, a lumen for extracting lithium-rich solution into the main channel, the two ends of the main channel are provided with an inlet and an outlet for the solution to flow in and out of the main channel, a buffer solution chamber is arranged outside the main channel, the main channel and the buffer solution chamber connected by an anion permselective membrane. The patent of the present invention utilizes the difference in electrophoretic mobility of different cations to change the local water flow velocity and local electric field strength by controlling the pressure at the entrance and adjusting the height of the longitudinal and transverse barrier blocks in the main channel, so as to realize the extraction of lithium in the cavity area. Ion enrichment and extraction. The invention provides a stable and efficient method for separating and extracting lithium ions, which can be flexibly used in the industry of extracting lithium from salt lakes.

Description

technical field [0001] The invention belongs to the technical field of ion separation, and specifically refers to a lithium ion extraction device and an extraction method based on the ion concentration polarization effect. Background technique [0002] Lithium is closely related to people's lives. Lithium-ion batteries used in digital products such as laptops, mobile phones, and Bluetooth headsets carried by individuals contain abundant lithium elements. Lithium-ion batteries are high-energy storage media. Due to the rapid development of lithium-ion batteries, the business of lithium mines and lithium carbonate companies has flourished. Lithium metal batteries are also used in the military field. [0003] At present, more than 3 / 4 of the lithium reserves on the earth exist in salt lakes, and the cost of extracting lithium from salt lakes is about half lower than that from ores. Therefore, extracting lithium from raw liquid has become the main way of producing lithium salt p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C22B26/12C22B3/22C25B1/14C25B9/19
CPCC22B26/12C22B3/22C25B1/14C25B9/19Y02P10/20
Inventor 李子瑞江佳飞唐静
Owner HEBEI UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products