GB1039412A - Electrolytic technique for oxygen purification - Google Patents
Electrolytic technique for oxygen purificationInfo
- Publication number
- GB1039412A GB1039412A GB11278/64A GB1127864A GB1039412A GB 1039412 A GB1039412 A GB 1039412A GB 11278/64 A GB11278/64 A GB 11278/64A GB 1127864 A GB1127864 A GB 1127864A GB 1039412 A GB1039412 A GB 1039412A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- electrolyte
- mixture
- gas
- applying
- Prior art date
- 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
Links
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
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0233—Chemical processing only
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0046—Nitrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
<PICT:1039412/C6-C7/1> Oxygen from a gas mixture, e.g. air, is electrolytically solubilized at a cathode 3, Fig. 1, and reconstituted at an anode 7 to separate or purify it from the gas mixture. The electrodes 3, 7 are gas-permeable, liquid-impermeable and comprise a catalyst. Electrolyte 4 is selected such that the impurity gases are insoluble in it. Specified electrolytes are aqueous media containing H2SO4 HClO4, H3PO4, p-toluenesulphonic acid, NaOH and KOH. The oxygen containing mixture is supplied at 1 and the impurities removed at 5. A potential is used such that no hydrogen is evolved, e.g. 0.1 to 1.5 volts. Fig. 2 shows an alternate cell comprising the following members which are bolted together:- a membrane 11, e.g. a paper filter, saturated with electrolyte; gas-permeable liquid-impermeable electrodes 12, 13; metal screens 14, 15 which are directly linked to an external power source; spacers 16, 17 of inert metal; sealing gaskets 18, 19; and face plates 20, 21. Impure O2 is supplied at 22, impuritie removed at 23 and pure O2 removed at 24. Cells may be electrically connected in series or in parallel. The electrolyte may be an ion-conducting membrane. Electrodes can be made from carbon in which Pt, Pd, Ir, Rh or Ru has been incorporated. Electrodes are formed in Example 1 by applying to steel mesh a mixture of Pt black, colloidal SiO2 and polytetrafluorethylene; in Example 2 by applying to Ta mesh, a mixture of Pt black, colloidal Al2O3 and polytetrafluoroethylene; in Example 5 by applying to a stainless steel screen an emulsion of Ni, graphite and polyethylene, and in Example 6 the electrodes comprise Ni screens supporting Ag on graphite. Example 4 discloses an anionic ion exchange membrane saturated with ZNKOH as electrolyte employed as the electrode separator.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28928163A | 1963-06-20 | 1963-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1039412A true GB1039412A (en) | 1966-08-17 |
Family
ID=23110852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11278/64A Expired GB1039412A (en) | 1963-06-20 | 1964-03-17 | Electrolytic technique for oxygen purification |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE645698A (en) |
| DE (1) | DE1442969A1 (en) |
| FR (1) | FR1386878A (en) |
| GB (1) | GB1039412A (en) |
| NL (1) | NL6403635A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE28792E (en) * | 1966-03-15 | 1976-04-27 | Westinghouse Electric Corporation | Electrochemical method for separating O2 from a gas; generating electricity; measuring O2 partial pressure; and fuel cell |
| US4416758A (en) | 1978-04-14 | 1983-11-22 | Tseung Alfred C C | Gas extraction |
| EP0147012A2 (en) * | 1983-12-27 | 1985-07-03 | AQUANAUTICS CORPORATION (a Delaware corporation) | Method and apparatus for separating oxygen from a gaseous mixture |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH428671A (en) * | 1964-12-02 | 1967-01-31 | Raffinage Cie Francaise | Process for modifying the ratio of isotopes in oxygen in favor of heavy isotopes and installation for carrying out this process |
| US3410783A (en) * | 1966-02-02 | 1968-11-12 | Allis Chalmers Mfg Co | Electrochemical cell for separation of gaseous mixtures |
| US3410770A (en) * | 1966-02-18 | 1968-11-12 | Allis Chalmers Mfg Co | Electrolytic method for producing oxygen and hydrogen |
| GB1143868A (en) * | 1966-05-16 |
-
1964
- 1964-03-17 GB GB11278/64A patent/GB1039412A/en not_active Expired
- 1964-03-25 BE BE645698D patent/BE645698A/xx unknown
- 1964-03-27 FR FR968934A patent/FR1386878A/en not_active Expired
- 1964-04-06 NL NL6403635A patent/NL6403635A/xx unknown
- 1964-06-16 DE DE19641442969 patent/DE1442969A1/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE28792E (en) * | 1966-03-15 | 1976-04-27 | Westinghouse Electric Corporation | Electrochemical method for separating O2 from a gas; generating electricity; measuring O2 partial pressure; and fuel cell |
| US4416758A (en) | 1978-04-14 | 1983-11-22 | Tseung Alfred C C | Gas extraction |
| EP0147012A2 (en) * | 1983-12-27 | 1985-07-03 | AQUANAUTICS CORPORATION (a Delaware corporation) | Method and apparatus for separating oxygen from a gaseous mixture |
| EP0147012A3 (en) * | 1983-12-27 | 1986-04-23 | Maxdem Incorporated | Method and apparatus for separating oxygen from a gaseous mixture |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1442969A1 (en) | 1969-03-27 |
| FR1386878A (en) | 1965-01-22 |
| BE645698A (en) | 1964-09-25 |
| NL6403635A (en) | 1964-12-21 |
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