IT1069815B - Perffezionamento nelle membrane selettive per celle elettrolitiche cloro alcali - Google Patents
Perffezionamento nelle membrane selettive per celle elettrolitiche cloro alcaliInfo
- Publication number
- IT1069815B IT1069815B IT51580/76A IT5158076A IT1069815B IT 1069815 B IT1069815 B IT 1069815B IT 51580/76 A IT51580/76 A IT 51580/76A IT 5158076 A IT5158076 A IT 5158076A IT 1069815 B IT1069815 B IT 1069815B
- Authority
- IT
- Italy
- Prior art keywords
- alcal
- chlorine
- improvement
- electrolytic cells
- selective membranes
- Prior art date
Links
- 239000012528 membrane Substances 0.000 title abstract 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 title 1
- 229910052801 chlorine Inorganic materials 0.000 title 1
- 239000000460 chlorine Substances 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 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 1
- 239000003513 alkali Substances 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- OBTWBSRJZRCYQV-UHFFFAOYSA-N sulfuryl difluoride Chemical compound FS(F)(=O)=O OBTWBSRJZRCYQV-UHFFFAOYSA-N 0.000 abstract 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract 1
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
-
- 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
- C08J2371/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2371/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08J2371/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
- C08J2371/12—Polyphenylene oxides
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)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US61960675A | 1975-10-06 | 1975-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1069815B true IT1069815B (it) | 1985-03-25 |
Family
ID=24482598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT51580/76A IT1069815B (it) | 1975-10-06 | 1976-10-05 | Perffezionamento nelle membrane selettive per celle elettrolitiche cloro alcali |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4089759A (enExample) |
| JP (1) | JPS5246380A (enExample) |
| DE (1) | DE2644443B2 (enExample) |
| FR (1) | FR2327327A1 (enExample) |
| GB (1) | GB1562945A (enExample) |
| IT (1) | IT1069815B (enExample) |
| NL (1) | NL7610922A (enExample) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4181592A (en) * | 1976-05-21 | 1980-01-01 | Diamond Shamrock Corporation | Converting a diaphragm electrolytic cell to a membrane electrolytic cell |
| SE453603B (sv) * | 1977-11-02 | 1988-02-15 | Asahi Glass Co Ltd | Forfarande for atervinning av elektrokemiska egenskaper for katjonbytarmembranmaterial |
| JPS5544549A (en) * | 1978-09-26 | 1980-03-28 | Asahi Glass Co Ltd | Fluorine-contained cation exchange membrane for electrolysis |
| US4242184A (en) * | 1979-03-28 | 1980-12-30 | Olin Corporation | Membrane cell chlor-alkali process having improved overall efficiency |
| 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 |
| US4470889A (en) * | 1980-06-11 | 1984-09-11 | The Dow Chemical Company | Electrolytic cell having an improved ion exchange membrane and process for operating |
| US4468360A (en) * | 1981-12-21 | 1984-08-28 | Olin Corporation | Preparing porous diaphragms for electrolytic cells having non-uniform hydrophobicity |
| US4818365A (en) * | 1986-10-14 | 1989-04-04 | Monsanto Company | Solid state indicator electrode and method of making same |
| US5069974A (en) * | 1989-02-06 | 1991-12-03 | Monsanto Company | Metals coated with protective coatings of annealed perfluorinated cation-exchange polymers and method for making same |
| EP0662249B1 (en) * | 1990-06-11 | 1997-01-22 | The Dow Chemical Company | Ion exchange membrane having increased efficiency in proton exchange processes |
| US5302269A (en) * | 1990-06-11 | 1994-04-12 | The Dow Chemical Company | Ion exchange membrane/electrode assembly having increased efficiency in proton exchange processes |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3257334A (en) * | 1963-01-21 | 1966-06-21 | American Mach & Foundry | Electrodialysis membrane from perhalogenated fluorocarbons |
| US3282875A (en) * | 1964-07-22 | 1966-11-01 | Du Pont | Fluorocarbon vinyl ether polymers |
| US3948737A (en) * | 1971-12-27 | 1976-04-06 | Hooker Chemicals & Plastics Corporation | Process for electrolysis of brine |
| US4026783A (en) * | 1973-12-17 | 1977-05-31 | E. I. Du Pont De Nemours And Company | Electrolysis cell using cation exchange membranes of improved permselectivity |
| US3969285A (en) * | 1973-12-17 | 1976-07-13 | E. I. Du Pont De Nemours And Company | Heat-treated fluorocarbon sulfonylamine cation permselectivity |
-
1976
- 1976-10-01 NL NL7610922A patent/NL7610922A/xx not_active Application Discontinuation
- 1976-10-01 DE DE2644443A patent/DE2644443B2/de not_active Withdrawn
- 1976-10-04 US US05/729,201 patent/US4089759A/en not_active Expired - Lifetime
- 1976-10-05 IT IT51580/76A patent/IT1069815B/it active
- 1976-10-05 GB GB41243/76A patent/GB1562945A/en not_active Expired
- 1976-10-06 FR FR7630017A patent/FR2327327A1/fr active Granted
- 1976-10-06 JP JP51119467A patent/JPS5246380A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US4089759A (en) | 1978-05-16 |
| GB1562945A (en) | 1980-03-19 |
| FR2327327A1 (fr) | 1977-05-06 |
| JPS5246380A (en) | 1977-04-13 |
| NL7610922A (nl) | 1977-04-12 |
| FR2327327B1 (enExample) | 1980-07-25 |
| DE2644443B2 (de) | 1978-08-31 |
| DE2644443A1 (de) | 1977-04-14 |
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