[go: up one dir, main page]

SE419454B - CATION EXCHANGE MEMBRANE AND USE OF THE SAME AS A SEPARATOR IN AN ELECTROLY CELL - Google Patents

CATION EXCHANGE MEMBRANE AND USE OF THE SAME AS A SEPARATOR IN AN ELECTROLY CELL

Info

Publication number
SE419454B
SE419454B SE7511538A SE7511538A SE419454B SE 419454 B SE419454 B SE 419454B SE 7511538 A SE7511538 A SE 7511538A SE 7511538 A SE7511538 A SE 7511538A SE 419454 B SE419454 B SE 419454B
Authority
SE
Sweden
Prior art keywords
treated
ethylene diamine
treatment
cation exchange
nrr
Prior art date
Application number
SE7511538A
Other languages
Swedish (sv)
Other versions
SE7511538L (en
Inventor
C J Hora
A D Babinsky
Original Assignee
Diamond Shamrock 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.)
Filing date
Publication date
Priority claimed from US05/587,047 external-priority patent/US4081349A/en
Application filed by Diamond Shamrock Corp filed Critical Diamond Shamrock Corp
Publication of SE7511538L publication Critical patent/SE7511538L/en
Publication of SE419454B publication Critical patent/SE419454B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/20—Manufacture of shaped structures of ion-exchange resins
    • C08J5/22—Films, membranes or diaphragms
    • C08J5/2287—After-treatment
    • C08J5/2293—After-treatment of fluorine-containing membranes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

1479388 Cation exchange membranes in electrolytic cells DIAMOND SHAMROCK CORP 15 Oct 1975 [16 Oct 1974 16 June 1975] 42309/75 Heading C7B [Also in Division C3] Cation exchange membranes for use in an electrolytic cell are obtained by surface treatment of a membrane comprising a fluorine containing polymer having pendant sulphonyl groups with an acyclic polyamine other than ethylene diamine to convert the sulphonyl groups to the form -SO 2 NRR' NRR", optionally after a pre-treatment with ethylene diamine, on one side, the remaining sulphonyl groups being in the form -SO 3 R where R is H, Na or K. R' is C 3 -C 6 alkylene, Z 2 NR", or ZNR" Z 2 NR", Z is C 2 -C 6 alkylene and R" is R or -SO 2 -. If the membrane is first treated with ethylene diamine, groups to a depth of 2.5-25 microns are converted to -SO 2 NR-C 2 H 4 -NRR". The remainder of the treated depth, up to about 50 microns and to an extent of at least 10 microns in the absence of ethylene diamine treatment, is treated with a polyamine e.g. 1,3-diaminopropane, dipropylene triamine, diethylene triamine, or butylene diamine. Treatment with alkali metal hydroxide converts other sulphonyl groups to the -SO 3 R form. The polymer is preferably a copolymer of tetrafluoroethylene and CF 2 =CFY f SO 2 F where Yf is a C 2 -C 8 bivalent perflourinated aliphatic radical. The membranes are used in the electrolysis of brine with the treated surface facing the cathode.
SE7511538A 1974-10-16 1975-10-15 CATION EXCHANGE MEMBRANE AND USE OF THE SAME AS A SEPARATOR IN AN ELECTROLY CELL SE419454B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US51516674A 1974-10-16 1974-10-16
US05/587,047 US4081349A (en) 1974-10-16 1975-06-16 Polyamine modified membranes and chlor-alkali electrolysis cells employing same

Publications (2)

Publication Number Publication Date
SE7511538L SE7511538L (en) 1976-04-20
SE419454B true SE419454B (en) 1981-08-03

Family

ID=27058419

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7511538A SE419454B (en) 1974-10-16 1975-10-15 CATION EXCHANGE MEMBRANE AND USE OF THE SAME AS A SEPARATOR IN AN ELECTROLY CELL

Country Status (12)

Country Link
JP (1) JPS5164496A (en)
AT (1) AT341546B (en)
DD (2) DD126821A5 (en)
DE (1) DE2546205B2 (en)
FI (1) FI752859A (en)
FR (1) FR2288162A1 (en)
GB (1) GB1479388A (en)
IL (1) IL48307A0 (en)
IN (1) IN143623B (en)
NL (1) NL7512113A (en)
RO (1) RO71151A (en)
SE (1) SE419454B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5655577A (en) * 1979-10-06 1981-05-16 Toyo Soda Mfg Co Ltd Electrolyzing method for alkali metal halide
SG60007A1 (en) * 1995-06-26 1999-02-22 Tokuyama Corp Fluorine-contained resin moulded articles

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969285A (en) * 1973-12-17 1976-07-13 E. I. Du Pont De Nemours And Company Heat-treated fluorocarbon sulfonylamine cation permselectivity

Also Published As

Publication number Publication date
ATA786875A (en) 1977-06-15
DD122482A5 (en) 1976-10-12
JPS5439238B2 (en) 1979-11-27
AT341546B (en) 1978-02-10
IN143623B (en) 1978-01-07
FR2288162A1 (en) 1976-05-14
DD126821A5 (en) 1977-08-17
FR2288162B1 (en) 1978-04-07
DE2546205A1 (en) 1976-04-29
AU8565775A (en) 1977-04-07
DE2546205B2 (en) 1978-02-09
RO71151A (en) 1980-12-30
GB1479388A (en) 1977-07-13
FI752859A (en) 1976-04-17
JPS5164496A (en) 1976-06-03
SE7511538L (en) 1976-04-20
IL48307A0 (en) 1975-12-31
NL7512113A (en) 1976-04-21

Similar Documents

Publication Publication Date Title
GB1522877A (en) Process for producing alkali metal hydroxide by electrolysis
FR2275298A1 (en) COMPOSITE CATION EXCHANGER MEMBRANE AND ITS USE IN THE ELECTROLYSIS OF AN ALKALINE METAL HALOGENIDE
SE7703520L (en) ELECTROLYSIS OF ALKALIMETAL HALID SOLUTION
CA1133668B (en) Films of fluorinated polymer containing sulfonyl groups
NZ195570A (en) Cation exchange resin based on perhalogenated fluorine-containing polymer
IT1129825B (en) PROCEDURE AND ELECTROLYTIC CELL FOR THE PRODUCTION OF CHLORINE AND ALKALI WITH THE USE OF AN ELECTROLYTE CONSTITUTED BY POLYMER MONEY
IT1166581B (en) CATIONIC MEMBRANES BASED ON STYRENE DIVINYLBENZENE AND 2- OR 4-VINYLPYRIDINE OR ACRYLIC ACID SULPHONATED COPOLYMERS, PROCEDURE FOR THEIR PREPARATION AND USE IN ELECTROLYSIS CELLS
IE38350B1 (en) Electrolytic cells and processes
JPS5311199A (en) Electrolyzing method and electrolytic cell
IL54539A (en) Fluorinated ion exchange polymers containing carboxylic groups,their production and their use as membranes in chloralkali electrolysis cells
SE419454B (en) CATION EXCHANGE MEMBRANE AND USE OF THE SAME AS A SEPARATOR IN AN ELECTROLY CELL
ES478573A1 (en) their preparation and their use in the electrolysis of sodium chloride.
NZ187023A (en) Fluorinated ion-exchanger polymers
NL7512112A (en) ELECTROLYSIS CELL.
JPS5641392A (en) Electrolytic method of alkali chloride aqueous solution
IT1056147B (en) Cation exchange membrane of fluoro polymer - with sulphonyl gps. modified by amination, for electrolysis of alkali chlorides
JPS5665989A (en) Electrolysis method of alkali metal halogenide
JPS57155389A (en) Electrolysis of common salt
JPS5625984A (en) Anode for alkali chloride electrolysis
SU882192A1 (en) METHOD OF OBTAINING ION-EXCHANGE MEMBRANE