SE7413728L - - Google Patents
Info
- Publication number
- SE7413728L SE7413728L SE7413728A SE7413728A SE7413728L SE 7413728 L SE7413728 L SE 7413728L SE 7413728 A SE7413728 A SE 7413728A SE 7413728 A SE7413728 A SE 7413728A SE 7413728 L SE7413728 L SE 7413728L
- Authority
- SE
- Sweden
- Prior art keywords
- compartment
- hydroxide solution
- sodium hydroxide
- cell
- cathode
- Prior art date
Links
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 15
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 4
- 238000005868 electrolysis reaction Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 2
- 239000012528 membrane Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000011780 sodium chloride Substances 0.000 abstract 2
- RRZIJNVZMJUGTK-UHFFFAOYSA-N 1,1,2-trifluoro-2-(1,2,2-trifluoroethenoxy)ethene Chemical class FC(F)=C(F)OC(F)=C(F)F RRZIJNVZMJUGTK-UHFFFAOYSA-N 0.000 abstract 1
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- 239000003518 caustics Substances 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- 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
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
Landscapes
- 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)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
A concentrated hydroxide solution containing over 250 g./l. of sodium hydroxide is made by a two-cell aqueous sodium chloride electrolysis process wherein, in a first cell, containing at least three (and preferably three) compartments, with a buffer compartment separated from adjoining anode and cathode compartments by walls of a cation-active permselective membrane, which is of a hydrolyzed copolymer of a perfluorinated hydrocarbon and fluorosulfonated perfluorovinyl ether or of a sulfostyrenated perfluorinated ethylene propylene polymer, a concentrated sodium hydroxide solution is made in the cathode compartment, a dilute sodium hydroxide solution is produced in a buffer compartment, to which compartment water is added during the electrolysis and chlorine is generated in the anode compartment, after which the dilute hydroxide is fed to the cathode compartment of a two-compartment electrolytic cell in which sodium chloride solution is electrolyzed in the anode compartment and concentrated sodium hydroxide solution, at a concentration of more than 250 g./l., is withdrawn from the cathode compartment. The caustic efficiency of the combined process is above 70%, which is normally unattainable using only a two-compartment membrane cell and yet, the sodium hydroxide solution resulting is at a high concentration.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US411619A US3899403A (en) | 1973-11-01 | 1973-11-01 | Electrolytic method of making concentrated hydroxide solutions by sequential use of 3-compartment and 2-compartment electrolytic cells having separating compartment walls of particular cation-active permselective membranes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE7413728L true SE7413728L (en) | 1975-05-02 |
Family
ID=23629662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7413728A SE7413728L (en) | 1973-11-01 | 1974-10-31 |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US3899403A (en) |
| JP (1) | JPS5075195A (en) |
| AR (1) | AR209270A1 (en) |
| AU (1) | AU7452974A (en) |
| BR (1) | BR7409139D0 (en) |
| DE (1) | DE2451847A1 (en) |
| FI (1) | FI319374A (en) |
| FR (1) | FR2249972A1 (en) |
| IT (1) | IT1025403B (en) |
| NL (1) | NL7414203A (en) |
| NO (1) | NO743912L (en) |
| SE (1) | SE7413728L (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4147599A (en) * | 1977-07-19 | 1979-04-03 | Diamond Shamrock Corporation | Production of alkali metal carbonates in a cell having a carboxyl membrane |
| AR205953A1 (en) * | 1975-01-22 | 1976-06-15 | Diamond Shamrock Corp | PRODUCTION OF CARBONATES FROM METALS TO CALINES IN A MEMBRANE CELL |
| JPS597795B2 (en) * | 1975-04-17 | 1984-02-21 | 株式会社トクヤマ | Cathode iron for electrolysis |
| US4212712A (en) * | 1975-11-19 | 1980-07-15 | Kureha Kagaku Kogyo Kabushiki Kaisha | Process for the electrolytic treatment of alkali metal halide solution using ion exchange membranes |
| FR2355926A1 (en) * | 1975-11-21 | 1978-01-20 | Rhone Poulenc Ind | ELECTROLYSIS SELECTIVE DIAPHRAGM |
| US4036717A (en) * | 1975-12-29 | 1977-07-19 | Diamond Shamrock Corporation | Method for concentration and purification of a cell liquor in an electrolytic cell |
| US4057474A (en) * | 1976-06-25 | 1977-11-08 | Allied Chemical Corporation | Electrolytic production of alkali metal hydroxide |
| US4076603A (en) * | 1977-04-07 | 1978-02-28 | Kaiser Aluminum & Chemical Corporation | Caustic and chlorine production process |
| US4147600A (en) * | 1978-01-06 | 1979-04-03 | Hooker Chemicals & Plastics Corp. | Electrolytic method of producing concentrated hydroxide solutions |
| FR2618165B1 (en) * | 1987-07-17 | 1991-05-10 | Rhone Poulenc Chimie | PROCESS OF REDUCTION BY ELECTROLYSIS AND SEPARATION OF EUROPIUM AND ELECTROLYSIS CELL FOR THE IMPLEMENTATION OF THIS PROCESS. |
| US20020179435A1 (en) * | 2001-06-04 | 2002-12-05 | Maddan Orville Lee | Apparatus and method for producing magnesium from seawater |
| KR101118795B1 (en) * | 2011-12-14 | 2012-03-21 | (주) 테크윈 | High efficient sodium hypochlorite generator for decreasing by-product |
| DK3824991T3 (en) | 2012-04-23 | 2022-10-31 | Nemaska Lithium Inc | METHOD FOR THE PREPARATION OF LITHIUM SULFATE |
| EP3363930B1 (en) | 2012-05-30 | 2024-03-13 | Nemaska Lithium Inc. | Processes for preparing lithium carbonate |
| CA3014124A1 (en) | 2013-03-15 | 2014-09-18 | Nemaska Lithium Inc. | Use of electrochemical cell for preparing lithium hydoxide |
| CN105849317B (en) * | 2013-10-23 | 2018-11-27 | 内玛斯卡锂公司 | Prepare the method and system of lithium hydroxide |
| CN105849047B (en) | 2013-10-23 | 2018-11-13 | 内玛斯卡锂公司 | The method for preparing lithium carbonate |
| CN103628085B (en) * | 2013-11-22 | 2016-10-05 | 新汶矿业集团有限责任公司泰山盐化工分公司 | Water resource circulation utilization method in chlor-alkali production |
| ES2743245T3 (en) | 2014-02-24 | 2020-02-18 | Nemaska Lithium Inc | Procedures for treating materials containing lithium |
| US9644278B2 (en) * | 2015-03-13 | 2017-05-09 | Barbara Jean Manojlovich | Recycling hydrogen generator |
| CN105063655B (en) * | 2015-08-12 | 2017-06-06 | 江苏安凯特科技股份有限公司 | The method for producing iminodiacetic acid |
| AU2017268084B2 (en) | 2016-05-17 | 2022-11-17 | Diversey, Inc. | Alkaline and chlorine solutions produced using electro-chemical activation |
| CA2940509A1 (en) | 2016-08-26 | 2018-02-26 | Nemaska Lithium Inc. | Processes for treating aqueous compositions comprising lithium sulfate and sulfuric acid |
| AU2018212642B2 (en) | 2017-01-26 | 2021-02-04 | Diversey, Inc. | Neutralization in electro-chemical activation systems |
| CN113772750B (en) | 2017-11-22 | 2024-05-10 | 内玛斯卡锂业有限公司 | Method for preparing hydroxides and oxides of various metals and derivatives thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2967807A (en) * | 1952-01-23 | 1961-01-10 | Hooker Chemical Corp | Electrolytic decomposition of sodium chloride |
| NL278049A (en) * | 1961-05-05 | |||
| US3282875A (en) * | 1964-07-22 | 1966-11-01 | Du Pont | Fluorocarbon vinyl ether polymers |
| US3341366A (en) * | 1964-08-19 | 1967-09-12 | Gen Electric | Sulfonated polymers of alpha, beta, beta-trifluorostyrene, with applications to structures and cells |
| US3496077A (en) * | 1967-12-18 | 1970-02-17 | Hal B H Cooper | Electrolyzing of salt solutions |
| US3562008A (en) * | 1968-10-14 | 1971-02-09 | Ppg Industries Inc | Method for producing a ruthenium coated titanium electrode |
| US3773634A (en) * | 1972-03-09 | 1973-11-20 | Diamond Shamrock Corp | Control of an olyte-catholyte concentrations in membrane cells |
-
1973
- 1973-11-01 US US411619A patent/US3899403A/en not_active Expired - Lifetime
-
1974
- 1974-10-21 AU AU74529/74A patent/AU7452974A/en not_active Expired
- 1974-10-30 FR FR7436301A patent/FR2249972A1/fr not_active Withdrawn
- 1974-10-30 NO NO743912A patent/NO743912L/no unknown
- 1974-10-30 NL NL7414203A patent/NL7414203A/en unknown
- 1974-10-30 AR AR256341A patent/AR209270A1/en active
- 1974-10-31 IT IT29063/74A patent/IT1025403B/en active
- 1974-10-31 BR BR9139/74A patent/BR7409139D0/en unknown
- 1974-10-31 FI FI3193/74A patent/FI319374A/fi unknown
- 1974-10-31 SE SE7413728A patent/SE7413728L/ not_active Application Discontinuation
- 1974-10-31 JP JP49126516A patent/JPS5075195A/ja active Pending
- 1974-10-31 DE DE19742451847 patent/DE2451847A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5075195A (en) | 1975-06-20 |
| DE2451847A1 (en) | 1975-05-07 |
| FR2249972A1 (en) | 1975-05-30 |
| NL7414203A (en) | 1975-05-06 |
| IT1025403B (en) | 1978-08-10 |
| AR209270A1 (en) | 1977-04-15 |
| US3899403A (en) | 1975-08-12 |
| NO743912L (en) | 1975-05-26 |
| AU7452974A (en) | 1976-04-29 |
| BR7409139D0 (en) | 1975-08-26 |
| FI319374A (en) | 1975-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAV | Patent application has lapsed |
Ref document number: 7413728-2 |