CN115301087A - Electrodialysis ion exchange membrane for electrode liquid recovery and preparation method thereof - Google Patents
Electrodialysis ion exchange membrane for electrode liquid recovery and preparation method thereof Download PDFInfo
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- CN115301087A CN115301087A CN202211001818.6A CN202211001818A CN115301087A CN 115301087 A CN115301087 A CN 115301087A CN 202211001818 A CN202211001818 A CN 202211001818A CN 115301087 A CN115301087 A CN 115301087A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/44—Ion-selective electrodialysis
- B01D61/445—Ion-selective electrodialysis with bipolar membranes; Water splitting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/12—Composite membranes; Ultra-thin membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/42—Ion-exchange membranes
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Abstract
The invention discloses an electrodialysis ion exchange membrane for electrode liquid recovery and a preparation method thereof, and the electrodialysis ion exchange membrane comprises an anode chamber, wherein the anode chamber is arranged on the outer surface of a partition net, and is provided with an anode chamber and a cathode chamber, so that electricity can be firstly conducted to electrode liquid during electrode liquid recovery, ions in the electrode liquid can be dialyzed under the action of an electric field, charged solute particles in the solution can migrate through the membrane, ion materials with different components in the electrode liquid can be independently screened and filtered due to the separated anode chamber and the separated cathode chamber, and the solution separated and screened by the anode chamber and the cathode chamber can be independently separated and taken out due to partition of the partition net, so that the device can separate ion solutions with different components without multiple independent screening processes, and further reduces the working efficiency during electrode liquid recovery.
Description
Technical Field
The invention relates to the technical field of ion exchange membranes, in particular to an electrodialysis ion exchange membrane for electrode liquid recovery and a preparation method thereof.
Background
The ion exchange membrane is a high molecular membrane containing ion groups and having selective permeability to ions in a solution, and mainly has the effects of isolating and filtering electrolyte through the self selective permeability, particularly the ion exchange membrane is frequently used in the current new energy batteries and fuel cells, plays an important role in the technical field of membranes, and plays an important role in the research of bionic membranes.
In the existing battery recovery process, an ion exchange membrane is often used to classify, filter and recover electrolytes with different ion components, so that the electrolytes can be reused after processing, but the ion exchange membrane has the selective permeability not only aiming at a single ion component, so that the electrolyte is inconvenient to independently filter various ions required in electrode liquid; in view of the above, we propose an electrodialysis ion exchange membrane for electrode liquid recovery and a preparation method thereof.
Disclosure of Invention
The invention mainly aims to provide an electrodialysis ion exchange membrane for recycling electrode liquid and a preparation method thereof, which can carry out layered filtration on different ions in the electrode liquid.
In order to achieve the above object, the present invention provides an electrodialysis ion exchange membrane for recovering electrode solution, including an anode chamber, the anode chamber is disposed on an outer surface of a partition net, the anode chamber includes:
the outer surface of the cation membrane is in contact with an anode diaphragm;
and one end of the anode diaphragm, which is far away from the anode diaphragm, is contacted with a separation net.
Preferably, one end of the separation net, which is far away from the anode bin, is contacted with the cathode bin, the cathode bin comprises a cathode diaphragm, the outer surface of the cathode diaphragm is contacted with the separation net, and one end of the cathode diaphragm, which is far away from the separation net, is contacted with the anion membrane.
In order to achieve the above purpose, the invention provides a preparation method of an electrodialysis ion exchange membrane for recovering electrode solution, which comprises the following steps:
s1, independently subpackaging a cation exchange resin solution and an anion exchange resin solution, and drying in a drying oven for 2h for dehumidifying and drying;
s2, independently passing the dried cation exchange resin crystals and anion exchange resin crystals through a 50-80-mesh screen to obtain cation exchange resin powder and anion exchange resin powder, wherein the environmental humidity is less than 20% during sieving;
s3, independently grinding the cation exchange resin powder and the anion exchange resin powder for 1h by using a grinder, wherein the grinding pressure is less than or equal to 0.03 MPa at the time of 0-20 min, the grinding speed is 100 m/min, and the grinding pressure is 0.03-0.05 MPa at the time of 20-60 min, and the grinding speed is 20 m/min;
s4, independently passing the cation exchange resin powder and the anion exchange resin powder ground in the step S3 through a screen with 140-160 meshes to obtain finished cation exchange resin powder and finished anion exchange resin powder, wherein the environmental humidity is less than 20% during sieving;
s5, weighing and then putting the finished product of cation exchange resin powder, adhesive, stabilizer, dye and antioxidant into an internal mixer step by step for mixing, wherein the mixing temperature is 100-120 ℃, and the cation exchange resin powder accounts for 70-75%, the adhesive accounts for 15-20%, the stabilizer accounts for 2.5-4%, the dye accounts for 0.8-1.4% and the antioxidant accounts for 1-2%;
s6, weighing and then putting the anion exchange resin powder, adhesive, stabilizer, dye and antioxidant into an internal mixer for mixing at 100-120 ℃, wherein the cation exchange resin powder accounts for 70-75%, the adhesive accounts for 15-20%, the stabilizer accounts for 2.5-4%, the dye accounts for 0.8-1.4% and the antioxidant accounts for 1-2%;
s7, independently carrying out rolling forming on the products processed in the S5 and the S6 by a rolling press, wherein the rolling pressure is 12-14 MPa, and cutting and screening after the rolling thickness reaches 150-200 mu m;
s8, feeding the product in the S7 into a hot press, heating and hot-pressing for 1 hour, and forming a cation membrane and an anion membrane, wherein the hot-pressing pressure is 8-10 MPa;
s9, coating double-layer ceramic powder on the surface of a polymer diaphragm formed by propylene addition polymerization by an electrostatic spraying method, wherein the mass ratio of the adhesive to the glass fiber yarns to the ceramic powder is 3;
and S10, alternately bonding the cation membrane and the anion membrane obtained in the S7 with the ceramic diaphragm in the S9 at intervals, and dividing the formed anode bin and the cathode bin by a polyolefin spacer mesh.
Preferably, the screen mesh used in S4 is screened by a high-speed vibrating screen, and the residue material which cannot pass through the screen mesh is ground again in the step S3.
Preferably, in the S5 and S6 steps, a small amount of NaOH solution is added into the two steps for wetting.
Preferably, the product generated in S8 is placed in deionized water for standing and storage after the processing is finished, and the storage temperature is 20-25 ℃.
Preferably, the dye adopted in S5 is 50% of chlorophyll and 50% of lutein respectively, the dye adopted in S6 is 100% of phthalocyanine blue, the adopted binder is polyethylene, the adopted stabilizer is calcium stearate, and the adopted antioxidant is dibutyl hydroxy toluene.
Preferably, the grinding direction adopted in S3 is clockwise and counterclockwise rotation from bottom to top.
Preferably, 10g of polyisobutylene is added into each 100g of the adhesive in the S5 and the S6 for bonding and softening.
Compared with the prior art, the invention has the following beneficial effects:
(1) This electrodialysis ion exchange membrane for electrode liquid recovery is provided with positive pole storehouse and negative pole storehouse, consequently can be to electrifying in the electrode liquid earlier when carrying out electrode liquid recovery, thereby make the ion in the electrode liquid can carry out the dialysis under the electric field effect, electrified solute particle in the solution can pass through the membrane and migrate this moment, and the ionic material of disadvantaged composition can be because thereby separate positive pole storehouse and negative pole storehouse and independently screen and filter in the electrode liquid, and because the cutting apart of spacer screen, make the solution that positive pole storehouse and negative pole storehouse separated and selected can independently be separated and take out, thereby make this device need not just to realize separating the ionic solution of disadvantaged composition through many times independent screening flow, and then reduce the work efficiency when carrying out electrode liquid recovery.
(2) The electrodialysis ion exchange membrane preparation method for recovering the electrode solution enables the particle volumes of the cation membrane and the anion membrane to be smaller through two grinding modes and sieving modes with different thicknesses, so that the subsequent banburying effect is improved, the ion permeability inside the anode diaphragm and the cathode diaphragm which are manufactured in the subsequent processing process is better, the anode diaphragm and the cathode diaphragm are not easy to be hindered by impurities with larger molecules during selective filtration, and the filtration efficiency of the ion exchange membrane is improved.
(3) According to the preparation method of the electrodialysis ion exchange membrane for electrode liquid recovery, multiple groups of different cation membranes and anion membranes are marked by dyes, so that people can visually distinguish the anion membranes and the cation membranes from the surface colors of the exchange membrane, and the probability of misoperation of a user during electrode liquid recovery is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of an explosive structure according to the present invention;
FIG. 2 is a schematic front view of the present invention.
In the figure: 1. a cationic membrane; 2. an anode separator; 3. separating the net; 4. a cathode separator; 5. an anionic membrane; 6. an anode bin; 7. and a cathode bin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions relating to "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides an electrode liquid retrieves and uses electrodialysis ion exchange membrane, includes positive pole storehouse 6, and positive pole storehouse 6 sets up in the surface that separates net 3, can filter the anion in the electrode liquid, and positive pole storehouse 6 includes:
the outer surface of the cation membrane 1 is contacted with an anode diaphragm 2;
and one end of the anode diaphragm 2, which is far away from the anode diaphragm 1, is contacted with a separation net 3.
Specifically, one end of the separation net 3, which is far away from the anode chamber 6, is in contact with the cathode chamber 7, the cathode chamber 7 comprises a cathode diaphragm 4, the outer surface of the cathode diaphragm 4 is in contact with the separation net 3, and one end of the cathode diaphragm 4, which is far away from the separation net 3, is in contact with the anion membrane 5.
The invention provides a technical scheme that: a preparation method of an electrodialysis ion exchange membrane for recovering electrode solution;
the first embodiment is as follows:
s1, independently subpackaging a cation exchange resin solution and an anion exchange resin solution, and putting the separately subpackaged cation exchange resin solution and anion exchange resin solution into a drying oven to dry for 2 hours for dehumidifying and drying;
s2, independently passing the dried cation exchange resin crystals and anion exchange resin crystals through a 50-80-mesh screen to obtain cation exchange resin powder and anion exchange resin powder, wherein the environmental humidity is less than 20% during sieving;
s3, independently grinding the cation exchange resin powder and the anion exchange resin powder for 1h by using a grinder, wherein the grinding pressure is less than or equal to 0.03 MPa at the time of 0-20 min, the grinding speed is 100 m/min, and the grinding pressure is 0.03-0.05 MPa at the time of 20-60 min, and the grinding speed is 20 m/min;
s4, independently passing the cation exchange resin powder and the anion exchange resin powder ground in the step S3 through a screen with 140-160 meshes to obtain finished cation exchange resin powder and finished anion exchange resin powder, wherein the environmental humidity is less than 20% during sieving;
s5, weighing and then putting the finished product of cation exchange resin powder, adhesive, stabilizer, dye and antioxidant into an internal mixer step by step for mixing at the mixing temperature of 100-120 ℃, wherein the cation exchange resin powder accounts for 70-75%, the adhesive accounts for 15-20%, the stabilizer accounts for 2.5-4%, the dye accounts for 0.8-1.4% and the antioxidant accounts for 1-2%;
s6, weighing and then putting the anion exchange resin powder, adhesive, stabilizer, dye and antioxidant into an internal mixer for mixing at 100-120 ℃, wherein the cation exchange resin powder accounts for 70-75%, the adhesive accounts for 15-20%, the stabilizer accounts for 2.5-4%, the dye accounts for 0.8-1.4% and the antioxidant accounts for 1-2%;
s7, independently carrying out rolling forming on the products processed in the S5 and the S6 by a rolling machine, wherein the rolling pressure is 12-14 MPa, and cutting and screening after the rolling thickness reaches 150-200 mu m;
s8, conveying the product in the S7 into a hot press, heating and hot-pressing for 1h, and forming into a cation membrane and an anion membrane, wherein the hot-pressing pressure is 8 MPa-10 MPa;
s9, coating double-layer ceramic powder on the surface of a polymer diaphragm formed by propylene addition polymerization by an electrostatic spraying method, wherein the mass ratio of the adhesive to the glass fiber yarns to the ceramic powder is 3;
and S10, alternately bonding the cation membrane and the anion membrane obtained in the step S7 and the ceramic diaphragm in the step S9 at intervals, and dividing the formed anode bin and the cathode bin by a separation net made of polyolefin materials.
Furthermore, the screen mesh used in S4 needs to be a high-speed vibrating screen when sieving, and the residue material which cannot pass through the screen mesh is ground again in the step S3.
Furthermore, in the S5 and S6 steps, a small amount of NaOH solution needs to be added into the S5 and the S6 respectively for wetting.
Further, the product generated in S8 is placed in deionized water for standing and storage after the processing is finished, and the storage temperature is 20-25 ℃.
Further, the dye adopted in S5 is 50% of chlorophyll and 50% of lutein respectively, the dye adopted in S6 is 100% of phthalocyanine blue, the adopted adhesive is polyethylene, the adopted stabilizer is calcium stearate, and the adopted antioxidant is dibutyl hydroxy toluene.
Further, the grinding direction adopted in S3 is clockwise and counterclockwise rotation from bottom to top.
Furthermore, 10g of polyisobutylene is added into the S5 and S6 after 100g of the adhesive is added into the S5 and S6 for bonding and flexibility increasing.
Example two:
s1, independently subpackaging a cation exchange resin solution and an anion exchange resin solution, and putting the separately subpackaged cation exchange resin solution and anion exchange resin solution into a drying oven to dry for 2 hours for dehumidifying and drying;
s2, independently passing the dried cation exchange resin crystals and anion exchange resin crystals through a 50-80-mesh screen to obtain cation exchange resin powder and anion exchange resin powder, wherein the environmental humidity is less than 20% during sieving;
s3, independently grinding the cation exchange resin powder and the anion exchange resin powder for 1 hour by using a grinder, wherein the whole grinding pressure is less than or equal to 0.03 MPa, and the grinding speed is 100 m/min;
s4, independently passing the cation exchange resin powder and the anion exchange resin powder ground in the step S3 through a screen with 140-160 meshes to obtain finished cation exchange resin powder and finished anion exchange resin powder, wherein the environmental humidity is less than 20% during sieving;
s5, weighing and then putting the finished product of cation exchange resin powder, adhesive, stabilizer, dye and antioxidant into an internal mixer step by step for mixing at the mixing temperature of 100-120 ℃, wherein the cation exchange resin powder accounts for 70-75%, the adhesive accounts for 15-20%, the stabilizer accounts for 2.5-4%, the dye accounts for 0.8-1.4% and the antioxidant accounts for 1-2%;
s6, weighing and then putting the finished product of anion exchange resin powder, adhesive, stabilizer, dye and antioxidant into an internal mixer step by step for mixing at the mixing temperature of 100-120 ℃, wherein the cation exchange resin powder accounts for 70-75%, the adhesive accounts for 15-20%, the stabilizer accounts for 2.5-4%, the dye accounts for 0.8-1.4% and the antioxidant accounts for 1-2%;
s7, independently carrying out rolling forming on the products processed in the S5 and the S6 by a rolling machine, wherein the rolling pressure is 12-14 MPa, and cutting and screening after the rolling thickness reaches 150-200 mu m;
s8, conveying the product in the S7 into a hot press, heating and hot-pressing for 1h, and forming into a cation membrane and an anion membrane, wherein the hot-pressing pressure is 8 MPa-10 MPa;
s9, coating double-layer ceramic powder on the surface of a polymer diaphragm formed by propylene addition polymerization by an electrostatic spraying method, wherein the mass ratio of the adhesive to the glass fiber yarns to the ceramic powder is 3;
and S10, alternately bonding the cation membrane and the anion membrane obtained in the step S7 and the ceramic diaphragm in the step S9 at intervals, and dividing the formed anode bin and the cathode bin by a separation net made of polyolefin materials.
Further, the screen mesh adopted in S4 needs to adopt a high-speed vibrating screen when sieving, and the residue material which cannot pass through the screen mesh is ground again in the step S3.
Furthermore, in the S5 and S6 steps, a small amount of NaOH solution needs to be added into the S5 and the S6 respectively for wetting.
Further, the product generated in S8 is placed in deionized water for standing and storage after the processing is finished, and the storage temperature is 20-25 ℃.
Further, the dye adopted in S5 is 50% of chlorophyll and 50% of lutein respectively, the dye adopted in S6 is 100% of phthalocyanine blue, the adopted adhesive is polyethylene, the adopted stabilizer is calcium stearate, and the adopted antioxidant is dibutyl hydroxy toluene.
Further, the grinding direction adopted in S3 is clockwise and counterclockwise rotation from bottom to top.
Furthermore, 10g of polyisobutylene is added into the S5 and S6 after 100g of the adhesive is added into the S5 and S6 for bonding and flexibility increasing.
This electrodialysis ion exchange membrane for electrode liquid recovery is provided with positive pole storehouse 6 and negative pole storehouse 7, consequently can be to electrifying in the electrode liquid earlier when carrying out electrode liquid recovery, thereby make the ion in the electrode liquid can carry out the dialysis under the electric field effect, electrified solute particle in the solution can pass through the membrane and migrate this moment, and the ionic material of disadvantaged component can be because thereby separate positive pole storehouse 6 and negative pole storehouse 7 and independently screen and filter, and because the partition of spacer net 3, make the solution that positive pole storehouse 6 and negative pole storehouse 7 separated and screened can independently be separated and take out, thereby make this device need not just can realize separating the ionic solution of different components through independent screening flow many times, and then reduce the work efficiency when carrying out electrode liquid recovery.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides an electrode liquid retrieves and uses electrodialysis ion exchange membrane, includes positive pole storehouse (6), its characterized in that: the positive pole storehouse (6) set up in the surface that separates net (3), can filter the anion in the electrode liquid, positive pole storehouse (6) include:
the cation membrane (1), the external surface of the cation membrane (1) is contacted with an anode diaphragm (2);
the anode diaphragm (2), the one end contact of anode diaphragm (2) is kept away from anode diaphragm (1) has separating net (3).
2. An electrodialysis ion exchange membrane for recovering electrode solution according to claim 1, wherein: one end of the separation net (3) far away from the anode bin (6) is contacted with a cathode bin (7), the cathode bin (7) comprises a cathode diaphragm (4), the outer surface of the cathode diaphragm (4) is contacted with the separation net (3), and one end of the cathode diaphragm (4) far away from the separation net (3) is contacted with an anion membrane (5).
3. A preparation method of an electrodialysis ion exchange membrane for recovering electrode solution is characterized by comprising the following steps: the preparation method of the electrodialysis ion exchange membrane for recovering the electrode solution comprises the following steps:
s1, independently subpackaging a cation exchange resin solution and an anion exchange resin solution, and drying in a drying oven for 2h for dehumidifying and drying;
s2, independently passing the dried cation exchange resin crystals and anion exchange resin crystals through a 50-80-mesh screen to obtain cation exchange resin powder and anion exchange resin powder, wherein the environmental humidity is less than 20% during sieving;
s3, independently grinding the cation exchange resin powder and the anion exchange resin powder for 1h by using a grinder, wherein the grinding pressure is less than or equal to 0.03 MPa at the time of 0-20 min, the grinding speed is 100 m/min, and the grinding pressure is 0.03-0.05 MPa at the time of 20-60 min, and the grinding speed is 20 m/min;
s4, independently passing the cation exchange resin powder and the anion exchange resin powder ground in the step S3 through a screen with 140-160 meshes to obtain finished cation exchange resin powder and finished anion exchange resin powder, wherein the environmental humidity is less than 20% during sieving;
s5, weighing and then putting the finished product of cation exchange resin powder, adhesive, stabilizer, dye and antioxidant into an internal mixer step by step for mixing at the mixing temperature of 100-120 ℃, wherein the cation exchange resin powder accounts for 70-75%, the adhesive accounts for 15-20%, the stabilizer accounts for 2.5-4%, the dye accounts for 0.8-1.4% and the antioxidant accounts for 1-2%;
s6, weighing and then putting the anion exchange resin powder, adhesive, stabilizer, dye and antioxidant into an internal mixer for mixing at 100-120 ℃, wherein the cation exchange resin powder accounts for 70-75%, the adhesive accounts for 15-20%, the stabilizer accounts for 2.5-4%, the dye accounts for 0.8-1.4% and the antioxidant accounts for 1-2%;
s7, independently carrying out rolling forming on the products processed in the S5 and the S6 by a rolling machine, wherein the rolling pressure is 12-14 MPa, and cutting and screening after the rolling thickness reaches 150-200 mu m;
s8, conveying the product in the S7 into a hot press, heating and hot-pressing for 1h, and forming into a cation membrane and an anion membrane, wherein the hot-pressing pressure is 8 MPa-10 MPa;
s9, coating double-layer ceramic powder on the surface of a polymer diaphragm formed by propylene addition polymerization by an electrostatic spraying method, wherein the mass ratio of the adhesive to the glass fiber yarns to the ceramic powder is 3;
and S10, alternately bonding the cation membrane and the anion membrane obtained in the S7 with the ceramic diaphragm in the S9 at intervals, and dividing the formed anode bin and the cathode bin by a polyolefin spacer mesh.
4. The method for preparing an electrodialysis ion exchange membrane for recovering electrode solution according to claim 3, wherein the method comprises the following steps: and (4) when the screen mesh adopted in the step (S4) is screened, a high-speed vibrating screen is adopted, and the residual materials which cannot pass through the screen mesh are ground again in the step (S3).
5. An electrodialysis ion exchange membrane preparation method for recovering electrode solution according to claim 3, characterized in that: and in the S5 and S6 steps, a small amount of NaOH solution is required to be added into the two solutions respectively for wetting.
6. An electrodialysis ion exchange membrane preparation method for recovering electrode solution according to claim 3, characterized in that: and (3) after the product generated in the S8 is processed, placing the product in deionized water, standing and storing the product at the temperature of 20-25 ℃.
7. An electrodialysis ion exchange membrane preparation method for recovering electrode solution according to claim 3, characterized in that: the dyes adopted in S5 are 50% of chlorophyll and 50% of lutein respectively, and the dye in S6 is 100% of phthalocyanine blue.
8. The method for preparing an electrodialysis ion exchange membrane for recovering electrode solution according to claim 3, wherein the method comprises the following steps: and the grinding direction adopted in the step S3 is clockwise and anticlockwise alternately rotating from bottom to top.
9. An electrodialysis ion exchange membrane preparation method for recovering electrode solution according to claim 3, characterized in that: and 10g of polyisobutylene is added into each 100g of the adhesive in the S5 and the S6 for bonding and increasing flexibility.
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| CN107787302A (en) * | 2015-04-30 | 2018-03-09 | 浦项产业科学研究院 | The preparation method and its device of lithium hydroxide and lithium carbonate |
| CN205627655U (en) * | 2016-05-10 | 2016-10-12 | 张长玉 | Electrodialyzer amberplex group |
| CN107275550A (en) * | 2017-06-20 | 2017-10-20 | 深圳市星源材质科技股份有限公司 | A kind of ceramics and polymer composite coated lithium-ion membrane and preparation method thereof |
| CN112516809A (en) * | 2021-01-11 | 2021-03-19 | 浙江工业大学 | Preparation method of semi-homogeneous bipolar membrane |
| CN113663518A (en) * | 2021-07-30 | 2021-11-19 | 中国科学技术大学 | Ion cooperative distillation system for fine screening of special mixed ions and application thereof |
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