AT328470B - Verfahren zur gewinnung von alkalimetallhydroxyd das weniger als 1 gew.-% alkalimetallchlorid enthalt, durch elektrolytische zersetzung von wasserigen alkalimetallchloridlosungen - Google Patents
Verfahren zur gewinnung von alkalimetallhydroxyd das weniger als 1 gew.-% alkalimetallchlorid enthalt, durch elektrolytische zersetzung von wasserigen alkalimetallchloridlosungenInfo
- Publication number
- AT328470B AT328470B AT1048673*7A AT1048673A AT328470B AT 328470 B AT328470 B AT 328470B AT 1048673 A AT1048673 A AT 1048673A AT 328470 B AT328470 B AT 328470B
- Authority
- AT
- Austria
- Prior art keywords
- alkalimetal
- chloride
- hydroxyde
- aquatic
- recovery
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/10—Testing of membranes or membrane apparatus; Detecting or repairing leaks
- B01D65/106—Repairing membrane apparatus or modules
- B01D65/108—Repairing 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
- 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
- C08J5/2206—Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
- C08J5/2218—Synthetic macromolecular compounds
- C08J5/2231—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds
- C08J5/2237—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds containing fluorine
-
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US21217171A | 1971-12-27 | 1971-12-27 | |
US00387072A US3852135A (en) | 1971-12-27 | 1973-08-09 | Patching damaged cation-active permselective diaphragms |
Publications (2)
Publication Number | Publication Date |
---|---|
ATA1048673A ATA1048673A (de) | 1975-06-15 |
AT328470B true AT328470B (de) | 1976-03-25 |
Family
ID=26906844
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT1048673*7A AT328470B (de) | 1971-12-27 | 1972-12-27 | Verfahren zur gewinnung von alkalimetallhydroxyd das weniger als 1 gew.-% alkalimetallchlorid enthalt, durch elektrolytische zersetzung von wasserigen alkalimetallchloridlosungen |
AT1048573A AT325309B (de) | 1971-12-27 | 1972-12-27 | Verfahren zum reparieren beschädigter teile von hydrolysierten copolymeren von tetrafluorathylen und einem sulfoniertem perfluorvinylather |
AT1107572A AT320678B (de) | 1971-12-27 | 1972-12-27 | Elektrolysezelle zur elektrolytischen Zersetzung von wässerigen Salzlösungen |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT1048573A AT325309B (de) | 1971-12-27 | 1972-12-27 | Verfahren zum reparieren beschädigter teile von hydrolysierten copolymeren von tetrafluorathylen und einem sulfoniertem perfluorvinylather |
AT1107572A AT320678B (de) | 1971-12-27 | 1972-12-27 | Elektrolysezelle zur elektrolytischen Zersetzung von wässerigen Salzlösungen |
Country Status (8)
Country | Link |
---|---|
US (1) | US3852135A (de) |
AT (3) | AT328470B (de) |
AU (2) | AU464313B2 (de) |
CA (1) | CA988051A (de) |
DE (2) | DE2260771B2 (de) |
FR (1) | FR2166070B1 (de) |
GB (1) | GB1421547A (de) |
NL (1) | NL7217598A (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3925174A (en) * | 1973-11-01 | 1975-12-09 | Hooker Chemicals Plastics Corp | Electrolytic method for the manufacture of hypochlorites |
JPS551351B2 (de) * | 1974-03-07 | 1980-01-12 | ||
US3959095A (en) * | 1975-01-31 | 1976-05-25 | Hooker Chemicals & Plastics Corporation | Method of operating a three compartment electrolytic cell for the production of alkali metal hydroxides |
US3980456A (en) * | 1975-03-31 | 1976-09-14 | General Electric Company | Method for sealing breaches in multi-layer ultrathin membrane composites |
US4124477A (en) * | 1975-05-05 | 1978-11-07 | Hooker Chemicals & Plastics Corp. | Electrolytic cell utilizing pretreated semi-permeable membranes |
US4076571A (en) * | 1976-10-19 | 1978-02-28 | Olin Corporation | Method of bonding electrolytic diaphragms of perfluorosulfonic acid resins |
US4165248A (en) * | 1976-12-01 | 1979-08-21 | Ppg Industries, Inc. | Method of joining fluorocarbon membrane sheets with quaternary ammonium compounds |
FR2388012A1 (fr) * | 1977-04-20 | 1978-11-17 | Du Pont | Polymere fluore echangeur d'ions contenant des groupes carboxyliques et pellicules et membranes constituees de ce polymere |
JPS5337198A (en) * | 1977-07-15 | 1978-04-06 | Asahi Chem Ind Co Ltd | Electrolytic method of sodium chloride |
JPS6041085B2 (ja) * | 1978-05-30 | 1985-09-13 | 旭化成株式会社 | フツ素系重合体の熔融処理方法 |
US4272560A (en) * | 1979-10-23 | 1981-06-09 | Diamond Shamrock Corporation | Method of depositing cation exchange membrane on a foraminous cathode |
US4330654A (en) * | 1980-06-11 | 1982-05-18 | The Dow Chemical Company | Novel polymers having acid functionality |
JPS58500570A (ja) * | 1981-04-28 | 1983-04-14 | エルテック・システムズ・コ−ポレ−ション | 有孔陰極上へ陽イオン交換膜を形成する方法 |
AU608913B2 (en) * | 1987-09-17 | 1991-04-18 | Commonwealth Scientific And Industrial Research Organisation | Neutralized perfluoro-3,6-dioxa-4-methyl-7-octene sulphonyl fluoride copolymer surface for attachment and growth of animal cells |
US4889541A (en) * | 1988-07-05 | 1989-12-26 | Texaco Inc. | Separation of gases |
DE3921180A1 (de) * | 1989-06-28 | 1991-01-03 | Gsb Ges Zur Beseitigung Von So | Verfahren und anlage zur reinigung von schadstoffhaltigen abgasen unter vermeidung von salzrueckstaenden |
US4971695A (en) * | 1989-10-31 | 1990-11-20 | Union Carbide Industrial Gases Technology Corporation | Sulfonated hexafluoro bis-a polysulfone membranes and process for fluid separations |
IT1318669B1 (it) * | 2000-08-08 | 2003-08-27 | Ausimont Spa | Ionomeri fluorurati solfonici. |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3713926A (en) * | 1969-12-05 | 1973-01-30 | Vyna Chem Inc | Method for patching materials |
US3804685A (en) * | 1972-06-14 | 1974-04-16 | Specialty Coatings & Chem Inc | Vinyl repair process |
-
1972
- 1972-12-08 AU AU49820/72A patent/AU464313B2/en not_active Expired
- 1972-12-12 DE DE19722260771 patent/DE2260771B2/de not_active Ceased
- 1972-12-12 DE DE2265306A patent/DE2265306C3/de not_active Expired
- 1972-12-19 GB GB5858672A patent/GB1421547A/en not_active Expired
- 1972-12-22 NL NL7217598A patent/NL7217598A/ not_active Application Discontinuation
- 1972-12-22 CA CA159,866A patent/CA988051A/en not_active Expired
- 1972-12-27 AT AT1048673*7A patent/AT328470B/de not_active IP Right Cessation
- 1972-12-27 AT AT1048573A patent/AT325309B/de not_active IP Right Cessation
- 1972-12-27 AT AT1107572A patent/AT320678B/de active
- 1972-12-27 FR FR7246375A patent/FR2166070B1/fr not_active Expired
-
1973
- 1973-08-09 US US00387072A patent/US3852135A/en not_active Expired - Lifetime
-
1975
- 1975-11-14 AU AU86656/75A patent/AU8665675A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU4982072A (en) | 1974-06-13 |
AU464313B2 (en) | 1975-08-21 |
FR2166070A1 (de) | 1973-08-10 |
AT320678B (de) | 1975-02-25 |
NL7217598A (de) | 1973-06-29 |
AT325309B (de) | 1975-10-10 |
GB1421547A (en) | 1976-01-21 |
DE2265306B2 (de) | 1981-03-12 |
ATA1048673A (de) | 1975-06-15 |
DE2260771B2 (de) | 1977-07-21 |
CA988051A (en) | 1976-04-27 |
DE2260771A1 (de) | 1973-07-12 |
DE2265306A1 (de) | 1977-04-14 |
FR2166070B1 (de) | 1976-06-04 |
US3852135A (en) | 1974-12-03 |
DE2265306C3 (de) | 1982-01-28 |
AU8665675A (en) | 1976-01-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee |