GB1247563A - Operating electrolytic cells and treatment of brine - Google Patents
Operating electrolytic cells and treatment of brineInfo
- Publication number
- GB1247563A GB1247563A GB55493/68A GB5549368A GB1247563A GB 1247563 A GB1247563 A GB 1247563A GB 55493/68 A GB55493/68 A GB 55493/68A GB 5549368 A GB5549368 A GB 5549368A GB 1247563 A GB1247563 A GB 1247563A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cell
- mercury
- product
- alkali
- brine
- 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
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
- C25B1/265—Chlorates
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,247,563. Mercury chloro-alkali or diaphragm chlorate cells. HOOKER CHEMICAL CORP. Nov. 22, 1968 [Dec. 4, 1967], No. 55493/68. Heading C7B. Hypochlorite is removed from the cell liquor of a mercury chloro-alkali or disphragm chlorate cell by contacting it externally of the cell with an ethylenically unsaturated compound to produce chlorohydrin, or, by further reaction with caustic alkali, a glycol and/or polyol, and recycling the treated liquor. For a diaphragm chlorate cell, the treated liquor may be passed to crystallizer from which the mother liquor containing the product of reaction, e.g. ethylene glycol, and make-up feed brine is recycled to the anode compartment of the cell, the product being sacrificially oxidized at a graphite anode in preference to carbon so reducing its oxidation. Similarly, depleted mercury cell brine, containing the product after reaction with the ethylenically unsaturated hydrocarbon, may be reconstituted preferably after dechlorination and neutralizing with alkali metal (e.g. sodium) chloride and recycled to the mercury cell where the product serves to decrease graphite anode oxidation and reduce the amount of hydrogen evolved with chlorine in the cell. The unsaturated compound is preferably an aliphatic or a cycloaliphatic hydrocarbon of C 2-8 , e.g. ethylene, propylene, 2- methyl-propene, 1- or 2-butene, 1, 3-butadiene or pentadiene and/or 1, 4-pentadiene.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US68783167A | 1967-12-04 | 1967-12-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1247563A true GB1247563A (en) | 1971-09-22 |
Family
ID=24762034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB55493/68A Expired GB1247563A (en) | 1967-12-04 | 1968-11-22 | Operating electrolytic cells and treatment of brine |
Country Status (6)
Country | Link |
---|---|
US (1) | US3535215A (en) |
BE (1) | BE724808A (en) |
DE (1) | DE1812723A1 (en) |
FR (1) | FR1595922A (en) |
GB (1) | GB1247563A (en) |
NL (1) | NL6817308A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3878072A (en) * | 1973-11-01 | 1975-04-15 | Hooker Chemicals Plastics Corp | Electrolytic method for the manufacture of chlorates |
US3897320A (en) * | 1973-11-01 | 1975-07-29 | Hooker Chemicals Plastics Corp | Electrolytic manufacture of chlorates, using a plurality of electrolytic cells |
DE67529T1 (en) * | 1981-05-14 | 1983-04-28 | The British Petroleum Co. P.L.C., Sunbury-On-Thames, Middlesex | METHOD FOR INHIBITING AND BREAKING MERCURY BUTTER IN CHLORINE ALKALI CELLS. |
CA1257560A (en) * | 1986-10-29 | 1989-07-18 | Tenneco Canada Inc. (Erco Division) | Electrochemical removal of hypochlorites from chlorate cell liquors |
US20150219583A1 (en) * | 2014-02-06 | 2015-08-06 | Honeywell International Inc. | Lead-free galvanic oxygen sensor |
CN111074293B (en) * | 2020-01-14 | 2022-05-10 | 石河子天域新实化工有限公司 | Chlorate decomposition process in production of caustic soda by ion-exchange membrane method |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US536848A (en) * | 1895-04-02 | Electrolysis | ||
US1253615A (en) * | 1915-06-22 | 1918-01-15 | Chemical Dev Company | Manufacture of chlorhydrins. |
US1264535A (en) * | 1915-12-09 | 1918-04-30 | Chemical Dev Company | Electrolysis of chlorids. |
US1253617A (en) * | 1916-03-18 | 1918-01-15 | Chemical Dev Company | Process of and apparatus for oxidizing hydrocarbons. |
US2949412A (en) * | 1948-11-24 | 1960-08-16 | Dow Chemical Co | Mercury-cell electrolysis of sodium chloride brine |
-
1967
- 1967-12-04 US US687831A patent/US3535215A/en not_active Expired - Lifetime
-
1968
- 1968-11-22 GB GB55493/68A patent/GB1247563A/en not_active Expired
- 1968-12-02 BE BE724808D patent/BE724808A/xx unknown
- 1968-12-03 NL NL6817308A patent/NL6817308A/xx unknown
- 1968-12-03 FR FR1595922D patent/FR1595922A/fr not_active Expired
- 1968-12-04 DE DE19681812723 patent/DE1812723A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US3535215A (en) | 1970-10-20 |
FR1595922A (en) | 1970-06-15 |
NL6817308A (en) | 1969-06-06 |
DE1812723A1 (en) | 1969-07-03 |
BE724808A (en) | 1969-06-02 |
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