EP3924537B1 - Mehrschichtige chloralkalimembran für kationenaustausch - Google Patents
Mehrschichtige chloralkalimembran für kationenaustausch Download PDFInfo
- Publication number
- EP3924537B1 EP3924537B1 EP20713433.9A EP20713433A EP3924537B1 EP 3924537 B1 EP3924537 B1 EP 3924537B1 EP 20713433 A EP20713433 A EP 20713433A EP 3924537 B1 EP3924537 B1 EP 3924537B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- sulfonate
- membrane
- ion exchange
- carboxylate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000012528 membrane Substances 0.000 title claims description 124
- 238000005341 cation exchange Methods 0.000 title claims description 26
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 157
- 229920000554 ionomer Polymers 0.000 claims description 90
- 150000007942 carboxylates Chemical class 0.000 claims description 72
- 238000005342 ion exchange Methods 0.000 claims description 66
- 230000002787 reinforcement Effects 0.000 claims description 25
- 239000002759 woven fabric Substances 0.000 claims description 19
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 claims description 13
- 238000003843 chloralkali process Methods 0.000 claims description 12
- 229920002313 fluoropolymer Polymers 0.000 claims description 12
- 239000004811 fluoropolymer Substances 0.000 claims description 12
- 239000010410 layer Substances 0.000 description 178
- 229920000642 polymer Polymers 0.000 description 31
- 210000004027 cell Anatomy 0.000 description 30
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 29
- 239000000835 fiber Substances 0.000 description 17
- 239000002243 precursor Substances 0.000 description 16
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 15
- 239000000178 monomer Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 12
- 229920000295 expanded polytetrafluoroethylene Polymers 0.000 description 12
- 239000000243 solution Substances 0.000 description 12
- 229920000139 polyethylene terephthalate Polymers 0.000 description 11
- 239000005020 polyethylene terephthalate Substances 0.000 description 11
- 239000004744 fabric Substances 0.000 description 10
- -1 polyethylene terephthalate Polymers 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical class C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 7
- 229910001413 alkali metal ion Inorganic materials 0.000 description 7
- 230000003247 decreasing effect Effects 0.000 description 7
- 125000000524 functional group Chemical group 0.000 description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Inorganic materials [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 7
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 229910006127 SO3X Inorganic materials 0.000 description 5
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 238000003475 lamination Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 229910052700 potassium Inorganic materials 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 150000001340 alkali metals Chemical class 0.000 description 4
- 238000007334 copolymerization reaction Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 230000032258 transport Effects 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 229910006095 SO2F Inorganic materials 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000003518 caustics Substances 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 150000004702 methyl esters Chemical class 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 3
- 229920005548 perfluoropolymer Polymers 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- OBTWBSRJZRCYQV-UHFFFAOYSA-N sulfuryl difluoride Chemical group FS(F)(=O)=O OBTWBSRJZRCYQV-UHFFFAOYSA-N 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 2
- 239000010954 inorganic particle Substances 0.000 description 2
- 125000003010 ionic group Chemical group 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical group FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- KHXKESCWFMPTFT-UHFFFAOYSA-N 1,1,1,2,2,3,3-heptafluoro-3-(1,2,2-trifluoroethenoxy)propane Chemical compound FC(F)=C(F)OC(F)(F)C(F)(F)C(F)(F)F KHXKESCWFMPTFT-UHFFFAOYSA-N 0.000 description 1
- QMMLNXDAOGWHBE-UHFFFAOYSA-N 2,2,3,3,4,4-hexafluoro-4-[1,1,1,2,3,3-hexafluoro-3-(1,2,2-trifluoroethenoxy)propan-2-yl]oxybutanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)OC(F)(C(F)(F)F)C(F)(F)OC(F)=C(F)F QMMLNXDAOGWHBE-UHFFFAOYSA-N 0.000 description 1
- TUFKHKZLBZWCAW-UHFFFAOYSA-N 2-(1-ethenoxypropan-2-yloxy)ethanesulfonyl fluoride Chemical compound C=COCC(C)OCCS(F)(=O)=O TUFKHKZLBZWCAW-UHFFFAOYSA-N 0.000 description 1
- SVQOKUWDNBOKFD-UHFFFAOYSA-N 2-ethenoxyethanesulfonyl fluoride Chemical compound FS(=O)(=O)CCOC=C SVQOKUWDNBOKFD-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical group CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical class OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 210000003771 C cell Anatomy 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical group [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- 229910001514 alkali metal chloride Inorganic materials 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000001566 impedance spectroscopy Methods 0.000 description 1
- 238000002188 infrared transmission spectroscopy Methods 0.000 description 1
- 230000037427 ion transport Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 125000004492 methyl ester group Chemical group 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 1
- 229920005596 polymer binder Polymers 0.000 description 1
- 239000002491 polymer binding agent Substances 0.000 description 1
- 229920005594 polymer fiber Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
- C25B1/46—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B13/00—Diaphragms; Spacing elements
- C25B13/02—Diaphragms; Spacing elements characterised by shape or form
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B13/00—Diaphragms; Spacing elements
- C25B13/04—Diaphragms; Spacing elements characterised by the material
- C25B13/08—Diaphragms; Spacing elements characterised by the material based on organic materials
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Fuel Cell (AREA)
Claims (15)
- Mehrschichtige Kationenaustauschmembran (10) zur Verwendung in einem Chloralkaliprozess, umfassend eine Carboxylatschicht (12), umfassend ein Carboxylatgruppen enthaltendes fluoriertes lonomer, auf einer Seite der Membran, eine externe Sulfonatschicht (14), umfassend ein Sulfonatgruppen enthaltendes fluoriertes lonomer, auf der Seite der Membran, die entgegengesetzt zu der Carboxylatschicht ist, und eine interne Sulfonatschicht (16), umfassend ein Sulfonatgruppen enthaltendes fluoriertes lonomer, zwischen der Carboxylatschicht (12) und der externen Sulfonatschicht (14), wobei die externe Sulfonatschicht (14) ein Ionenaustauschverhältnis von mehr als 11,3 aufweist und die interne Sulfonatschicht (16) ein Ionenaustauschverhältnis von weniger als 11 aufweist.
- Membran (10) nach Anspruch 1, wobei die interne Sulfonatschicht (16) ein Ionenaustauschverhältnis aufweist, das um mindestens 0,6 kleiner als das Ionenaustauschverhältnis der externen Sulfonatschicht (14) ist.
- Membran (10) nach den Ansprüchen 1 oder 2, wobei die Carboxylatschicht (12) ein IXR von 13,8 bis 16 aufweist.
- Membran (10) nach den Ansprüchen 1, 2 oder 3, wobei die externe Sulfonatschicht (14) ein Ionenaustauschverhältnis von mehr als 11,5, vorzugsweise von 11,3 bis 17,5, mehr bevorzugt von 11,3 bis 15,5, noch mehr bevorzugt von 11,3 bis 13,5 und am meisten bevorzugt von 11,3 bis 12,4 aufweist.
- Membran (10) nach einem der vorhergehenden Ansprüche, wobei die interne Sulfonatschicht (16) ein Ionenaustauschverhältnis von weniger als 10,9, vorzugsweise von 9,3 bis 11, mehr bevorzugt von 10 bis 11 und am meisten bevorzugt von 10 bis 10,9 aufweist.
- Membran (10) nach einem der vorhergehenden Ansprüche, ferner umfassend eine Gewebeverstärkung.
- Membran (10) nach Anspruch 6, wobei die Gewebeverstärkung mindestens zum Teil in die Membran eingebettet ist.
- Membran (10) nach den Ansprüchen 6 oder 7, wobei das Gewebe Fluorpolymergarne mit einem Denier von weniger als 100 umfasst.
- Membran (10) nach einem der vorhergehenden Ansprüche, wobei die interne Sulfonatschicht (16) eine Dicke von mindestens 40 Mikrometer, vorzugsweise von 50 bis 200 Mikrometer, mehr bevorzugt von 60 Mikrometer bis 100 Mikrometer aufweist.
- Membran (10) nach den vorhergehenden Ansprüchen, wobei die externe Sulfonatschicht (14) eine Dicke von weniger als 30 Mikrometer, vorzugsweise von 5 bis 30 Mikrometer, mehr bevorzugt von 7 Mikrometer bis 25 Mikrometer aufweist.
- Mehrschichtige Kationenaustauschmembran (110) zur Verwendung in einem Chloralkaliprozess, umfassend eine Carboxylatschicht (112), umfassend ein Carboxylatgruppen enthaltendes fluoriertes Ionomer, auf einer Seite der Membran, eine externe Sulfonatschicht (114), umfassend ein Sulfonatgruppen enthaltendes fluoriertes lonomer, auf der Seite der Membran, die entgegengesetzt zu der Carboxylatschicht (112) ist, und eine erste und eine zweite interne Sulfonatschicht (117, 116), umfassend Sulfonatgruppen enthaltendes fluoriertes lonomer, zwischen der Carboxylatschicht (112) und der externen Sulfonatschicht (114), wobei die erste interne Sulfonatschicht (117) zwischen der Carboxylatschicht (112) und der zweiten internen Sulfonatschicht (116) ist und die zweite interne Sulfonatschicht (116) zwischen der ersten internen Sulfonatschicht (117) und der externen Sulfonatschicht (114) ist, wobei die externe Sulfonatschicht (114) ein Ionenaustauschverhältnis von mehr als 11,3 aufweist, die erste interne Sulfonatschicht (117) ein Ionenaustauschverhältnis von mehr als 11,3 aufweist und die zweite interne Sulfonatschicht (116) ein lonenaustauschverhältnis von weniger als 11 aufweist.
- Membran (110) nach Anspruch 11, wobei die zweite interne Sulfonatschicht (116) ein Ionenaustauschverhältnis aufweist, das um mindestens 0,6 kleiner als das lonenaustauschverhältnis der externen Sulfonatschicht (114) ist.
- Membran (110) nach den Ansprüchen 11 oder 12, wobei die erste interne Sulfonatschicht (117) ein Ionenaustauschverhältnis aufweist, das um mindestens 0,6 größer als das lonenaustauschverhältnis der zweiten internen Sulfonatschicht (116) ist.
- Membran (110) nach einem der Ansprüche 11-13, wobei die Carboxylatschicht (112) ein Ionenaustauschverhältnis von 13,8 bis 16 aufweist.
- Membran (110) nach einem der Ansprüche 11-14, wobei die erste interne Sulfonatschicht (117) ein Ionenaustauschverhältnis aufweist, das sich von dem Ionenaustauschverhältnis der Carboxylatschicht (112) um höchstens 3,3 unterscheidet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201962805333P | 2019-02-14 | 2019-02-14 | |
| PCT/US2020/018024 WO2020168023A1 (en) | 2019-02-14 | 2020-02-13 | Multilayer cation exchange chloralkali membrane |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP24169897.6 Division-Into | 2024-04-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3924537A1 EP3924537A1 (de) | 2021-12-22 |
| EP3924537B1 true EP3924537B1 (de) | 2024-07-03 |
Family
ID=69941463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20713433.9A Active EP3924537B1 (de) | 2019-02-14 | 2020-02-13 | Mehrschichtige chloralkalimembran für kationenaustausch |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20220136118A1 (de) |
| EP (1) | EP3924537B1 (de) |
| JP (1) | JP2022520413A (de) |
| KR (1) | KR20210124420A (de) |
| CN (1) | CN113423870B (de) |
| WO (1) | WO2020168023A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024086102A1 (en) * | 2022-10-18 | 2024-04-25 | The Chemours Company Fc, Llc | Durable, low-swelling reinforced ion exchange membranes |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3282875A (en) | 1964-07-22 | 1966-11-01 | Du Pont | Fluorocarbon vinyl ether polymers |
| US4272560A (en) * | 1979-10-23 | 1981-06-09 | Diamond Shamrock Corporation | Method of depositing cation exchange membrane on a foraminous cathode |
| US4358545A (en) | 1980-06-11 | 1982-11-09 | The Dow Chemical Company | Sulfonic acid electrolytic cell having flourinated polymer membrane with hydration product less than 22,000 |
| US4544471A (en) * | 1981-11-02 | 1985-10-01 | E. I. Du Pont De Nemours And Company | Electrolytic cell with cation exchange membrane having high equivalent weight component |
| US4552631A (en) | 1983-03-10 | 1985-11-12 | E. I. Du Pont De Nemours And Company | Reinforced membrane, electrochemical cell and electrolysis process |
| US4940525A (en) | 1987-05-08 | 1990-07-10 | The Dow Chemical Company | Low equivalent weight sulfonic fluoropolymers |
| JP3075580B2 (ja) * | 1991-04-05 | 2000-08-14 | 旭硝子株式会社 | 電解用含フッ素陽イオン交換膜 |
| US5981097A (en) * | 1996-12-23 | 1999-11-09 | E.I. Du Pont De Nemours And Company | Multiple layer membranes for fuel cells employing direct feed fuels |
| CN100441747C (zh) * | 2003-12-05 | 2008-12-10 | 山东东岳高分子材料有限公司 | 全氟离子交换溶合增强膜及其制备方法 |
| JP4708133B2 (ja) * | 2005-09-14 | 2011-06-22 | 旭化成ケミカルズ株式会社 | 電解用フッ素系陽イオン交換膜及びその製造方法 |
| EP3216896B1 (de) * | 2014-11-07 | 2020-06-24 | AGC Inc. | Ionenaustauschmembran für alkalichlorid-elektrolyse und alkalichlorid-elektrolysevorrichtung |
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2020
- 2020-02-13 EP EP20713433.9A patent/EP3924537B1/de active Active
- 2020-02-13 WO PCT/US2020/018024 patent/WO2020168023A1/en unknown
- 2020-02-13 KR KR1020217028814A patent/KR20210124420A/ko active Search and Examination
- 2020-02-13 JP JP2021547255A patent/JP2022520413A/ja active Pending
- 2020-02-13 CN CN202080014417.7A patent/CN113423870B/zh active Active
- 2020-02-13 US US17/426,794 patent/US20220136118A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN113423870A (zh) | 2021-09-21 |
| EP3924537A1 (de) | 2021-12-22 |
| CN113423870B (zh) | 2024-06-07 |
| WO2020168023A1 (en) | 2020-08-20 |
| KR20210124420A (ko) | 2021-10-14 |
| US20220136118A1 (en) | 2022-05-05 |
| JP2022520413A (ja) | 2022-03-30 |
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