CA1078564A - Procede permettant d'ameliorer la selectivite des membranes utilisees dans les piles chloralcalines - Google Patents

Procede permettant d'ameliorer la selectivite des membranes utilisees dans les piles chloralcalines

Info

Publication number: CA1078564A
Authority: CA; Canada
Prior art keywords: membrane; centigrade; temperature; minutes; thermally treating
Prior art date: 1975-10-06
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.): Expired

Application number

CA262,439A

Other languages

English (en)

Inventor

Michael Krumpelt

Stanley T. Hirozawa

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

BASF Corp

Original Assignee

BASF Wyandotte Corp

Priority date (The priority date 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 date listed.)

1975-10-06

Filing date

1976-09-30

Publication date

1980-06-03

1976-09-30 Application filed by BASF Wyandotte Corp filed Critical BASF Wyandotte Corp

1976-10-04 Priority claimed from US05/729,201 external-priority patent/US4089759A/en

1980-06-03 Application granted granted Critical

1980-06-03 Publication of CA1078564A publication Critical patent/CA1078564A/fr

Status Expired legal-status Critical Current

Links

239000012528 membrane Substances 0.000 title claims abstract description 75
238000000034 method Methods 0.000 title claims description 14
239000003513 alkali Substances 0.000 title abstract description 15
BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims abstract description 7
-1 polytetrafluoroethylene Polymers 0.000 claims description 5
239000007864 aqueous solution Substances 0.000 claims description 4
238000005868 electrolysis reaction Methods 0.000 claims description 4
229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical class C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 claims 1
229910001508 alkali metal halide Inorganic materials 0.000 claims 1
150000008045 alkali metal halides Chemical class 0.000 claims 1
150000004820 halides Chemical class 0.000 claims 1
229920001289 polyvinyl ether Polymers 0.000 claims 1
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract description 18
229920001577 copolymer Polymers 0.000 abstract description 6
RRZIJNVZMJUGTK-UHFFFAOYSA-N 1,1,2-trifluoro-2-(1,2,2-trifluoroethenoxy)ethene Chemical compound FC(F)=C(F)OC(F)=C(F)F RRZIJNVZMJUGTK-UHFFFAOYSA-N 0.000 abstract description 4
OBTWBSRJZRCYQV-UHFFFAOYSA-N sulfuryl difluoride Chemical compound FS(F)(=O)=O OBTWBSRJZRCYQV-UHFFFAOYSA-N 0.000 abstract description 3
230000003247 decreasing effect Effects 0.000 abstract description 2
210000004379 membrane Anatomy 0.000 description 58
238000007669 thermal treatment Methods 0.000 description 10
238000005265 energy consumption Methods 0.000 description 9
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
238000011282 treatment Methods 0.000 description 5
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
238000001816 cooling Methods 0.000 description 4
238000010438 heat treatment Methods 0.000 description 3
239000000463 material Substances 0.000 description 3
HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 3
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
238000002441 X-ray diffraction Methods 0.000 description 2
239000010425 asbestos Substances 0.000 description 2
239000012267 brine Substances 0.000 description 2
239000001257 hydrogen Substances 0.000 description 2
229910052739 hydrogen Inorganic materials 0.000 description 2
229910052895 riebeckite Inorganic materials 0.000 description 2
150000003839 salts Chemical class 0.000 description 2
235000011890 sandwich Nutrition 0.000 description 2
239000011780 sodium chloride Substances 0.000 description 2
125000000542 sulfonic acid group Chemical group 0.000 description 2
LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
MQJKPEGWNLWLTK-UHFFFAOYSA-N Dapsone Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 MQJKPEGWNLWLTK-UHFFFAOYSA-N 0.000 description 1
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 1
241000024109 Spiris Species 0.000 description 1
229910000831 Steel Inorganic materials 0.000 description 1
150000008044 alkali metal hydroxides Chemical class 0.000 description 1
239000002585 base Substances 0.000 description 1
230000008859 change Effects 0.000 description 1
239000000460 chlorine Substances 0.000 description 1
229910052801 chlorine Inorganic materials 0.000 description 1
230000003292 diminished effect Effects 0.000 description 1
150000002170 ethers Chemical class 0.000 description 1
230000001747 exhibiting effect Effects 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
239000007789 gas Substances 0.000 description 1
239000000383 hazardous chemical Substances 0.000 description 1
231100000206 health hazard Toxicity 0.000 description 1
XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
238000003780 insertion Methods 0.000 description 1
230000037431 insertion Effects 0.000 description 1
239000003014 ion exchange membrane Substances 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
230000007246 mechanism Effects 0.000 description 1
230000004048 modification Effects 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000000877 morphologic effect Effects 0.000 description 1
230000035699 permeability Effects 0.000 description 1
229920000642 polymer Polymers 0.000 description 1
230000002787 reinforcement Effects 0.000 description 1
239000011347 resin Substances 0.000 description 1
229920005989 resin Polymers 0.000 description 1
229910052708 sodium Inorganic materials 0.000 description 1
239000011734 sodium Substances 0.000 description 1
229910001415 sodium ion Inorganic materials 0.000 description 1
239000010959 steel Substances 0.000 description 1
230000008961 swelling Effects 0.000 description 1
230000007704 transition Effects 0.000 description 1

Landscapes

Manufacture Of Macromolecular Shaped Articles (AREA)

CA262,439A 1975-10-06 1976-09-30 Procede permettant d'ameliorer la selectivite des membranes utilisees dans les piles chloralcalines Expired CA1078564A (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US61960675A	1975-10-06	1975-10-06
US05/729,201 US4089759A (en)	1975-10-06	1976-10-04	Method for improving selectivity of membranes used in chlor-alkali cells

Publications (1)

Publication Number	Publication Date
CA1078564A true CA1078564A (fr)	1980-06-03

Family

ID=27088554

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA262,439A Expired CA1078564A (fr)	1975-10-06	1976-09-30	Procede permettant d'ameliorer la selectivite des membranes utilisees dans les piles chloralcalines

Country Status (1)

Country	Link
CA (1)	CA1078564A (fr)

1976
- 1976-09-30 CA CA262,439A patent/CA1078564A/fr not_active Expired

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Legal Events

Date	Code	Title	Description
1997-06-03	MKEX	Expiry