FR2402013A1 - Procede pour la recuperation du mercure des cellules d'electrolyse en contenant - Google Patents
Procede pour la recuperation du mercure des cellules d'electrolyse en contenantInfo
- Publication number
- FR2402013A1 FR2402013A1 FR7824935A FR7824935A FR2402013A1 FR 2402013 A1 FR2402013 A1 FR 2402013A1 FR 7824935 A FR7824935 A FR 7824935A FR 7824935 A FR7824935 A FR 7824935A FR 2402013 A1 FR2402013 A1 FR 2402013A1
- Authority
- FR
- France
- Prior art keywords
- brine
- mercury
- reinforced
- cell
- alkali metal
- 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.)
- Granted
Links
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title abstract 6
- 229910052753 mercury Inorganic materials 0.000 title abstract 5
- 238000005868 electrolysis reaction Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000012267 brine Substances 0.000 abstract 7
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 abstract 6
- 229910001514 alkali metal chloride Inorganic materials 0.000 abstract 3
- 229910000497 Amalgam Inorganic materials 0.000 abstract 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 abstract 2
- 239000002244 precipitate Substances 0.000 abstract 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- -1 brine barium compounds Chemical class 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229940008718 metallic mercury Drugs 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 150000003568 thioethers Chemical class 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
- C25B1/36—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in mercury cathode cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/22—Electrolytic production, recovery or refining of metals by electrolysis of solutions of metals not provided for in groups C25C1/02 - C25C1/20
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Abstract
Procédé pour améliorer le fonctionnement d'une cellule électrolytique à cathode à amalgame de mercure à écoulement, consistant à alimenter ladite cellule en une saumure de chlorure de métal alcalin renforcée tout en faisant passer un courant électrique à travers ladite cellule, à récupérer ladite saumure à partir de la cellule dont la teneur en chlorure de métal alcalin est réduite et celle en mercure est augmentée, à déchlorer ladite saumure, à reconcentrer la saumure avec du chlorure de métal alcalin, à ajouter à ladite saumure renforcée des composés baryum, des composés de carbonate et des composés à base de sulfure en tant que précipitants, à retirer les précipités de ladite saumure renforcée et à introduire ladite saumure renforcée dans une cellule électrolytique à cathode à amalgame de mercure à écoulement. Il comprend en outre les phases opératoires consistant : a. à ajouter une solution d'hypochlorite alcalin audit précipité de manière à former une suspension rouge; b. à acidifier la suspension rouge pour décolorer et dissoudre les matières solides, et c. à électrolyser le liquide résultant entre une anode et une cathode à un pH de 6 à 8,3, de manière à libérer du mercure métallique à ladite cathode. Application à la récupération du mercure des cellules d'électrolyse en contenant
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US82940977A | 1977-08-31 | 1977-08-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2402013A1 true FR2402013A1 (fr) | 1979-03-30 |
FR2402013B1 FR2402013B1 (fr) | 1982-06-18 |
Family
ID=25254459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7824935A Granted FR2402013A1 (fr) | 1977-08-31 | 1978-08-29 | Procede pour la recuperation du mercure des cellules d'electrolyse en contenant |
Country Status (6)
Country | Link |
---|---|
US (1) | US4149943A (fr) |
BE (1) | BE870080A (fr) |
DE (1) | DE2837774B2 (fr) |
FR (1) | FR2402013A1 (fr) |
GB (1) | GB2003505B (fr) |
NL (1) | NL7808883A (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4981562A (en) * | 1988-12-23 | 1991-01-01 | Gte Products Corporation | Electrolytic recovery of mercury enriched in isotopic abundance |
GB201012711D0 (en) * | 2010-07-29 | 2010-09-15 | Dickson Graham C | Method and apparatus for electrochemical recovery of mercury from solutions |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3102085A (en) * | 1958-06-27 | 1963-08-27 | Ici Ltd | Treatment of brine solutions |
FR2083374A1 (fr) * | 1970-03-18 | 1971-12-17 | Basf Ag | Procede de recuperation de mercure des boues de filtration de la saumure provenant d'une electrolyse d'un chlorure alcalin fonctionnant selon le procede a l'amalgame |
US3691037A (en) * | 1971-03-25 | 1972-09-12 | Fmc Corp | Mercury recovery from chlorine cells utilizing mercury cathodes |
JPH1055162A (ja) * | 1996-08-09 | 1998-02-24 | Sharp Corp | 文字パターン生成装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2860952A (en) * | 1957-07-03 | 1958-11-18 | Dow Chemical Co | Process for the recovery of dissolved mercury salts from brine effluent from mercury cathode electrolytic cells |
US3115389A (en) * | 1960-12-15 | 1963-12-24 | Ici Ltd | Treatment of brine |
DE1767026B1 (de) * | 1968-03-22 | 1971-06-16 | Hoechst Ag | Verfahren zur verringerung der quecksilberverluste bei der chloralkali elektrolyse nach dem amalgamverfahren |
GB1250171A (fr) * | 1968-09-21 | 1971-10-20 | ||
US4012297A (en) * | 1976-01-16 | 1977-03-15 | Basf Wyandotte Corporation | Mercury recovery and recycle process |
-
1978
- 1978-05-05 US US05/904,140 patent/US4149943A/en not_active Expired - Lifetime
- 1978-08-29 NL NL7808883A patent/NL7808883A/xx not_active Application Discontinuation
- 1978-08-29 FR FR7824935A patent/FR2402013A1/fr active Granted
- 1978-08-30 GB GB7835026A patent/GB2003505B/en not_active Expired
- 1978-08-30 DE DE2837774A patent/DE2837774B2/de not_active Withdrawn
- 1978-08-30 BE BE190159A patent/BE870080A/fr unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3102085A (en) * | 1958-06-27 | 1963-08-27 | Ici Ltd | Treatment of brine solutions |
FR2083374A1 (fr) * | 1970-03-18 | 1971-12-17 | Basf Ag | Procede de recuperation de mercure des boues de filtration de la saumure provenant d'une electrolyse d'un chlorure alcalin fonctionnant selon le procede a l'amalgame |
US3691037A (en) * | 1971-03-25 | 1972-09-12 | Fmc Corp | Mercury recovery from chlorine cells utilizing mercury cathodes |
JPH1055162A (ja) * | 1996-08-09 | 1998-02-24 | Sharp Corp | 文字パターン生成装置 |
Non-Patent Citations (1)
Title |
---|
CA1963 * |
Also Published As
Publication number | Publication date |
---|---|
DE2837774B2 (de) | 1980-05-29 |
DE2837774A1 (de) | 1979-06-13 |
GB2003505B (en) | 1982-09-22 |
US4149943A (en) | 1979-04-17 |
GB2003505A (en) | 1979-03-14 |
NL7808883A (nl) | 1979-03-02 |
BE870080A (fr) | 1979-02-28 |
FR2402013B1 (fr) | 1982-06-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |