GB1132281A - Method and apparatus for electrolysis of hydrochloric acid - Google Patents
Method and apparatus for electrolysis of hydrochloric acidInfo
- Publication number
- GB1132281A GB1132281A GB37219/65A GB3721965A GB1132281A GB 1132281 A GB1132281 A GB 1132281A GB 37219/65 A GB37219/65 A GB 37219/65A GB 3721965 A GB3721965 A GB 3721965A GB 1132281 A GB1132281 A GB 1132281A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cell
- anode
- hydrogen
- cathode
- electrolysis
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/04—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly acid liquids
-
- 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
-
- 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
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
-
- 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
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
Abstract
1,132,281. Electrolysis of hydrogen chloride. HOOKER CHEMICAL CORP. Aug.31, 1965 [Aug.31, 1964], No.37219/65. Heading C7B. An electrolytic cell for the electrolysis of hydrogen chloride is divided by a porous diaphragm of synthetic plastics material, e.g. of polypropylene, polytetrafluoroethylene or chlorinated polyvinyl chloride, into an anode chamber having anode means made of graphite, and a cathode chamber having cathode means made of steel, nickel plated steel or a nickel alloy, and is provided with a cell cover and with a pipe made of synthetic plastics material communicating with the cathode chamber for the withdrawal of depleted catholyte. Electrolysis is carried out by feeding an aqueous solution of hydrochloric acid and alkali metal chloride into the anode chamber of the cell from whence it passes through the porous diaphragm to the cathode chamber, maintaining the anolyte pH less than 1, applying a voltage across the electrodes to yeild chlorine at the anode and hydrogen at the cathode and withdrawing a depleted catholyte from the cell. The depleted catholyte preferably has a pH of less than 7. The aqueous feed solution may contain 5 - 20% hydrogen chloride and 1 - 20% alkali metal chloride and may also contain a corrosion inhibitor e.g. a primary, secondary, tertiary or a hydroxyl amine. The depleted catholyte preferably contains less than 20 gm/l hydrogen chloride and has a pH of less than 7. The cell shown comprises a plurality of anode plates 50 which extend through a corrosive-resistant layer 54 e.g. asphalt, polyester resin, PVC, or P.T.F.E. to contact a conductive layer 52 e.g. of lead, copper or brass, which is attached to the anode bus-bar 51. A mesh cathode formed of steel, nickel plated steel or nickel alloy, covered with a diaphragm 16, extends between each pair of anodes in the form of fingerlike projections 58. The upper part 60 of the diaphragm is non-porous to prevent hydrogen from passing into the anolyte. The cell is provided with electrolyte inlet 18, outlet 62 for depleted catholyte, and outlets 24, 28 for chlorine and hydrogen respectively. The cell top 64 may be of concrete lined with plastics material 66, or may be of a material such as polyester.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US39317164A | 1964-08-31 | 1964-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1132281A true GB1132281A (en) | 1968-10-30 |
Family
ID=23553575
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21181/68A Expired GB1132282A (en) | 1964-08-31 | 1965-08-31 | Lined cover for electrolytic cell |
| GB37219/65A Expired GB1132281A (en) | 1964-08-31 | 1965-08-31 | Method and apparatus for electrolysis of hydrochloric acid |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21181/68A Expired GB1132282A (en) | 1964-08-31 | 1965-08-31 | Lined cover for electrolytic cell |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE694057A (en) |
| DE (1) | DE1567571B2 (en) |
| GB (2) | GB1132282A (en) |
| NL (2) | NL6510493A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002049669A2 (en) * | 2000-12-21 | 2002-06-27 | Medtronic, Inc. | Electrically responsive promoter system |
| US6632347B1 (en) | 1999-08-06 | 2003-10-14 | Sterilox Medical (Europe) Limited | Electrochemical treatment of an aqueous solution |
| CN112759036A (en) * | 2020-12-28 | 2021-05-07 | 云南驰宏国际锗业有限公司 | Method for treating hydrochloric acid wastewater by electrolysis method and electrolytic cell for hydrochloric acid wastewater electrolysis |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443315A (en) * | 1980-07-03 | 1984-04-17 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Finger type electrolytic cell for the electrolysis of an aqueous alkali metal chloride solution |
| DE19700534A1 (en) | 1997-01-10 | 1998-07-16 | Bayer Ag | Cell cover for electrolytic cells |
-
0
- NL NL133391D patent/NL133391C/xx active
-
1965
- 1965-08-12 NL NL6510493A patent/NL6510493A/xx unknown
- 1965-08-26 DE DE1567571A patent/DE1567571B2/en active Pending
- 1965-08-31 GB GB21181/68A patent/GB1132282A/en not_active Expired
- 1965-08-31 GB GB37219/65A patent/GB1132281A/en not_active Expired
-
1967
- 1967-02-14 BE BE694057D patent/BE694057A/xx unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6632347B1 (en) | 1999-08-06 | 2003-10-14 | Sterilox Medical (Europe) Limited | Electrochemical treatment of an aqueous solution |
| US7303660B2 (en) | 1999-08-06 | 2007-12-04 | Puricore International Ltd. | Electrochemical treatment of an aqueous solution |
| WO2002049669A2 (en) * | 2000-12-21 | 2002-06-27 | Medtronic, Inc. | Electrically responsive promoter system |
| WO2002049669A3 (en) * | 2000-12-21 | 2003-07-24 | Medtronic Inc | Electrically responsive promoter system |
| CN112759036A (en) * | 2020-12-28 | 2021-05-07 | 云南驰宏国际锗业有限公司 | Method for treating hydrochloric acid wastewater by electrolysis method and electrolytic cell for hydrochloric acid wastewater electrolysis |
Also Published As
| Publication number | Publication date |
|---|---|
| NL133391C (en) | |
| BE694057A (en) | 1967-07-17 |
| GB1132282A (en) | 1968-10-30 |
| DE1567571A1 (en) | 1970-09-10 |
| DE1567571B2 (en) | 1974-12-12 |
| NL6510493A (en) | 1966-03-01 |
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