CN207463003U - A kind of electrodialysis plant for separating magnesium and lithium - Google Patents
A kind of electrodialysis plant for separating magnesium and lithium Download PDFInfo
- Publication number
- CN207463003U CN207463003U CN201721405547.5U CN201721405547U CN207463003U CN 207463003 U CN207463003 U CN 207463003U CN 201721405547 U CN201721405547 U CN 201721405547U CN 207463003 U CN207463003 U CN 207463003U
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- anode
- pool
- resin
- cathode
- lithium
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- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model belongs to salt lake and puies forward lithium production equipment field, specially a kind of nonconducting container cell, centre separates into anode pool and anode pool with anion-exchange membrane, cathode pool and anode pool bottom are covered with conductive metal mesh, metal mesh is electrically connected respectively with electric wire with positive and negative, and embedding lithium state positive electrode resin is anode, and it is cathode to take off lithium state positive electrode resin, anode resin is put into anode pool, cathode resin is put into cathode pool.The electrodialysis plant separating magnesium and lithium effect is good, improves productivity.
Description
Technical field
The application belongs to salt lake and puies forward lithium production equipment field, specially a kind of to have loaded band anode material of lithium battery conduction tree
The electrodialysis plant of fat.
Background technology
In terms of lithium resource, ore and salt lake are arisen primarily at, in the world 70% or so lithium money is stored in salt lake
Source.It is largely low Mg/Li ratio salt lake, but low Mg/Li ratio salt lake is less at present in the world in the salt lake of exploitation, high Mg/Li ratio
Salt lake accounting higher.As the increasingly depleted of lithium ore deposit and low Mg/Li ratio salt lake exploitation yield are limited, reasonable development high Mg/Li ratio
Saline lake lithium resource just in time.Salt lake exploitation enterprise is determined to the horizontal height of the processing technology of high Mg/Li ratio salt lake resources
Competitiveness.
Based on the above problem, a kind of novel separating magnesium and lithium device that is used for of design invention just seems particularly necessary.
Invention content
In view of the deficiencies of the prior art, for further electrodialysis plant working efficiency, investment cost is reduced so that equipment
Easy for installation, the utility model patent proposes one kind for separating magnesium and lithium electrodialysis plant, which uses containing embedding lithium state anode
Materials conductive resin is anode, and it is cathode to take off lithium state positive electrode resin, greatly improves the separative efficiency to magnesium lithium, improves
Productivity.
To achieve these goals, the specific technical solution of the utility model is：
A kind of electrodialysis plant for separating magnesium and lithium, includes the container cell of a upper opening type, and the container cell exists
Centre is provided with anion-exchange membrane, and container cell is divided into anode pool and cathode pool by anion-exchange membrane；In cathode and anode
The bottom in pond is equipped with conductive metal mesh respectively, connects electric wire on metal mesh, and the electric wire of cathode pool and anode pool respectively with
Positive and negative electrical connection；Anode resin is distributed in the anode pool, cathode resin is distributed in cathode pool；
The container cell sets pipeline as brine or the inlet tube of brine above anode pool and above cathode pool.
Anode pool or cathode pool bottom setting pipeline and valve are as brine or the outlet of brine, and pipe outlet and electroconductive resin
Between to have sieve, one piece of resin and flow is prevented to be lost in from outlet.Mesh size is less than the grain size of electroconductive resin.
The anode resin is embedding lithium state resin, and cathode resin is de- lithium state resin；
The thickness of the anion-exchange membrane is 0.1~100mm；
The metal mesh is designed for double-level-metal cage；
The cathode resin 8 is seated in cathode pool 4, and the metal mesh 5 in cathode pool is closely embedded in by cathode resin
Among cathode resin；Anode resin 3 is seated in anode pool 4, and the metal mesh in anode pool is closely embedded in sun by anode resin
Among the resin of pole；
The double-level-metal cage design of metal mesh so that resin can be contacted fully with metal mesh, increase contact area, really
Protect electric conductivity；And the design of metal cage so that after resin compacting, can be in close contact to each other, further increase conduction
Performance.
The utility model is as follows for the electrodialysis plant application method of separating magnesium and lithium：
To brine of the anode pool injection without magnesium；The brine containing high Mg/Li ratio is injected to cathode pool.Under certain voltage, lead to
Electric a few hours, anode pool (brine pit) take off lithium, cathode pool (concentraing pond) embedding lithium.When anode pool and cathode pool take off lithium and embedding lithium reaches
Balance closes power supply, releases brine and brine respectively.At this moment anode becomes de- lithium state after taking off lithium, becomes embedding lithium after the embedding lithium of cathode
State changes current direction, upwards batch concentraing pond injection brine, and batch brine pit injection brine, repeats a process still upwards
Play the role of embedding and removing.In this way, the lithium ion of concentraing pond is adsorbed, then the lithium ion adsorbed in brine pit be desorbed to
In saline solution, the ionic equilibrium between two Room is reached by anion-exchange membrane.So as to which the lithium concentration in brine chamber is big
Width reduces, and in lithium ion transfer to brine chamber, plays the role of separating magnesium and lithium.
The resin containing embedding lithium state positive electrode has been respectively adopted in the use of the new type and the resin containing de- lithium state positive electrode is made
For anode and cathode, lithium is adsorbed and is desorbed under applying electrical potential, solve the crucial problem that high Mg/Li ratio salt lake carries lithium,
Present invention process is suitble to industrialization.
The separating effect to magnesium lithium greatly improved in the electrodialysis plant that the utility model is proposed in summary, and to lithium
Large amount of adsorption, improve productivity.
Description of the drawings
Fig. 1 is a kind of structure diagram of separating magnesium and lithium electrodialysis plant；
Fig. 2 is the structure diagram of metal mesh in Fig. 1；
Reference numeral
1 is container cell in figure, and 2 be anion-exchange membrane, and 3 be anode pool, and 4 be cathode pool, and 5 be metal mesh, and 6 be electric wire, 7
It is anode resin, 8 be cathode resin, 9 inlet tubes, 10 outlets, 11 sieves.
Specific embodiment
Fig. 1 is a kind of structure diagram of separating magnesium and lithium electrodialysis plant；
Fig. 2 is the schematic diagram of metal cage in Fig. 1；
A kind of electrodialysis plant for separating magnesium and lithium, the container cell 1 including a upper opening type, the container cell 1
Anion-exchange membrane 2 is provided in centre, container cell 1 is divided into anode pool 3 and cathode pool 4 by anion-exchange membrane 2；In cathode
It is equipped with conductive metal mesh 5 respectively with the bottom of anode pool, electric wire 6, and the electricity of cathode pool and anode pool are connected on metal mesh 5
Line is electrically connected respectively with positive and negative；Anode resin 7 is distributed in the anode pool 3, cathode resin 8 is distributed in cathode pool；
The container cell 1 sets pipeline as brine or the inlet tube 9 of brine above anode pool and above cathode pool.
In anode pool or cathode pool bottom setting pipeline and valve as brine or the outlet 10 of brine, and pipe outlet and conduction
There is sieve 11 between resin, resin is prevented to be lost in flow from outlet for one piece.11 aperture of sieve is less than electroconductive resin
Grain size.
The anode resin 7 is embedding lithium state resin, and cathode resin 8 is de- lithium state resin；
The thickness of the anion-exchange membrane is 0.1~100mm；
The metal mesh 5 is designed for double-level-metal cage；
The cathode resin 8 is seated in cathode pool 4, and the metal mesh 5 in cathode pool is closely embedded in by cathode resin
Among cathode resin；Anode resin 3 is seated in anode pool 4, and the metal mesh in anode pool is closely embedded in sun by anode resin
Among the resin of pole；
The double-level-metal cage design of metal mesh 5 so that resin can be contacted fully with metal mesh, increase contact area,
Ensure electric conductivity；And the design of metal cage so that after resin compacting, can be in close contact to each other, further increase and lead
Electrical property.
The utility model is as follows for the electrodialysis plant application method of separating magnesium and lithium：
To brine of the anode pool injection without magnesium；The brine containing high Mg/Li ratio is injected to cathode pool.Under certain voltage, lead to
Electric a few hours, anode pool (brine pit) take off lithium, cathode pool (concentraing pond) embedding lithium.When anode pool and cathode pool take off lithium and embedding lithium reaches
Balance closes power supply, releases brine and brine respectively.At this moment anode becomes de- lithium state after taking off lithium, becomes embedding lithium after the embedding lithium of cathode
State changes current direction, upwards batch concentraing pond injection brine, and batch brine pit injection brine, repeats a process still upwards
Play the role of embedding and removing.In this way, the lithium ion of concentraing pond is adsorbed, then the lithium ion adsorbed in brine pit be desorbed to
In saline solution, the ionic equilibrium between two Room is reached by anion-exchange membrane.So as to which the lithium concentration in brine chamber is big
Width reduces, and in lithium ion transfer to brine chamber, plays the role of separating magnesium and lithium.
The resin containing embedding lithium state positive electrode has been respectively adopted in the use of the new type and the resin containing de- lithium state positive electrode is made
For anode and cathode, lithium is adsorbed and is desorbed under applying electrical potential, solve the crucial problem that high Mg/Li ratio salt lake carries lithium,
Present invention process is suitble to industrialization.
The separating effect to magnesium lithium greatly improved in the electrodialysis plant that the utility model is proposed in summary, and to lithium
Large amount of adsorption, improve productivity.
Claims (6)
1. a kind of electrodialysis plant for separating magnesium and lithium, which is characterized in that the container cell (1) including a upper opening type, institute
The container cell (1) stated is provided with anion-exchange membrane (2) in centre, and container cell (1) is divided into anode by anion-exchange membrane (2)
Pond (3) and cathode pool (4)；It is equipped with conductive metal mesh (5) respectively in the bottom of cathode and anode pool, connects on metal mesh (5)
It connects wires (6), and the electric wire of cathode pool and anode pool is electrically connected respectively with positive and negative；Anode is distributed in the anode pool (3)
Cathode resin (8) is distributed in cathode pool in resin (7).
2. it to be used for the electrodialysis plant of separating magnesium and lithium as described in claim 1, which is characterized in that the container cell (1) exists
Setting pipeline is as the inlet tube of brine or brine (9) above anode pool and above cathode pool, in anode pool or cathode pool bottom
Pipeline and valve are set as the outlet of brine or brine (10), and to have sieve between pipe outlet and electroconductive resin
(11), sieve (11) aperture is less than the grain size of electroconductive resin.
3. it to be used for the electrodialysis plant of separating magnesium and lithium as described in claim 1, which is characterized in that the anode resin (7)
For embedding lithium state resin, cathode resin (8) is de- lithium state resin.
4. it to be used for the electrodialysis plant of separating magnesium and lithium as described in claim 1, which is characterized in that the anion-exchange membrane
Thickness be 0.1~100mm.
5. it to be used for the electrodialysis plant of separating magnesium and lithium as described in claim 1, which is characterized in that the metal mesh (5) is
Double-level-metal cage designs.
6. it to be used for the electrodialysis plant of separating magnesium and lithium as described in claim 1, which is characterized in that the cathode resin (8)
It is seated in cathode pool (4), the metal mesh (5) in cathode pool is closely embedded among cathode resin by cathode resin；Anode tree
Fat (7) is seated in anode pool (3), and the metal mesh in anode pool is closely embedded among anode resin by anode resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721405547.5U CN207463003U (en) | 2017-10-29 | 2017-10-29 | A kind of electrodialysis plant for separating magnesium and lithium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721405547.5U CN207463003U (en) | 2017-10-29 | 2017-10-29 | A kind of electrodialysis plant for separating magnesium and lithium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207463003U true CN207463003U (en) | 2018-06-08 |
Family
ID=62265377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721405547.5U Expired - Fee Related CN207463003U (en) | 2017-10-29 | 2017-10-29 | A kind of electrodialysis plant for separating magnesium and lithium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207463003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110451534A (en) * | 2018-08-06 | 2019-11-15 | 南方科技大学 | A kind of purifying plant of lithium salts, purification system and method for purification |
-
2017
- 2017-10-29 CN CN201721405547.5U patent/CN207463003U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110451534A (en) * | 2018-08-06 | 2019-11-15 | 南方科技大学 | A kind of purifying plant of lithium salts, purification system and method for purification |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180608 Termination date: 20181029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |