CA2050201A1 - Electrogeneration of bromine and use thereof in recovery of precious metals and water treatment - Google Patents
Electrogeneration of bromine and use thereof in recovery of precious metals and water treatmentInfo
- Publication number
- CA2050201A1 CA2050201A1 CA002050201A CA2050201A CA2050201A1 CA 2050201 A1 CA2050201 A1 CA 2050201A1 CA 002050201 A CA002050201 A CA 002050201A CA 2050201 A CA2050201 A CA 2050201A CA 2050201 A1 CA2050201 A1 CA 2050201A1
- Authority
- CA
- Canada
- Prior art keywords
- solution
- bromine
- electrogeneration
- inlet
- recovery
- 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
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 title abstract 5
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 title abstract 5
- 229910052794 bromium Inorganic materials 0.000 title abstract 5
- 239000010970 precious metal Substances 0.000 title abstract 2
- 238000011084 recovery Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 2
- 239000000243 solution Substances 0.000 abstract 7
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 abstract 5
- 239000007864 aqueous solution Substances 0.000 abstract 2
- 229940006460 bromide ion Drugs 0.000 abstract 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
- C22B11/04—Obtaining noble metals by wet processes
-
- 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
-
- 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
- C25C1/20—Electrolytic production, recovery or refining of metals by electrolysis of solutions of noble metals
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
A process for generating bromine in an aqueous solution containing bromide ion. An aqueous solution containing bromide ions is caused to flow through an electrogeneration system that comprises paired anode means and cathode means. The system has an inlet and an outlet for the flow of the solution, the solution at the inlet having a pH of between about 0 and about 6 and a bromide ion concentration of between about 0.5 and about 8.8 moles/l. A direct electric potential is applied via the anode and cathode means to cause an electric current to pass through the flowing solution in the electrogeneration system and to generate bromine at the anode means by electrolytic oxidation of bromide ions. The relationship between the electric current and the throughput of the solution through the system is such that between about 4%
and about 50% of the bromide in the inlet solution is converted to bromine at the anode means. The pH of the discharged solution is between about 0 and about 6.
The aqueous bromine solution discharged from the electrogeneration system may be used in the recovery of precious metals, such as silver and gold, from sources thereof, and in the commercial and industrial treatment of water.
and about 50% of the bromide in the inlet solution is converted to bromine at the anode means. The pH of the discharged solution is between about 0 and about 6.
The aqueous bromine solution discharged from the electrogeneration system may be used in the recovery of precious metals, such as silver and gold, from sources thereof, and in the commercial and industrial treatment of water.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US57767790A | 1990-09-04 | 1990-09-04 | |
| US07/577,677 | 1990-09-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2050201A1 true CA2050201A1 (en) | 1992-03-05 |
| CA2050201C CA2050201C (en) | 2001-11-06 |
Family
ID=24309697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002050201A Expired - Lifetime CA2050201C (en) | 1990-09-04 | 1991-08-29 | Electrogeneration of bromine and use thereof in recovery of precious metals and water treatment |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0476862A1 (en) |
| JP (1) | JPH05117888A (en) |
| AU (1) | AU643319B2 (en) |
| BR (1) | BR9103819A (en) |
| CA (1) | CA2050201C (en) |
| IL (1) | IL99371A (en) |
| ZA (1) | ZA916961B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0580780A4 (en) * | 1991-04-12 | 1994-03-23 | Great Lakes Chemical Corporation | |
| WO2013078553A1 (en) * | 2011-12-01 | 2013-06-06 | Metafix Inc. | Method for reducing chromium |
| CN114956264A (en) * | 2022-06-09 | 2022-08-30 | 南京华工创新环境研究院有限公司 | Method for separating bromine in liquid by using electrochemistry |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA935409B (en) * | 1992-07-29 | 1994-02-16 | Great Lakes Chemical Corp | Inorganic perbromide compositions and methods of use thereof |
| ZA962117B (en) * | 1995-03-27 | 1996-09-26 | Electrocatalytic Inc | Process and apparatus for generating bromine |
| AU2001257646A1 (en) * | 2000-04-28 | 2001-11-12 | Mintek | Gold recovery process |
| US6660307B2 (en) | 2001-04-16 | 2003-12-09 | United States Filter Corporation | Process for generating stabilized bromine compounds |
| WO2017199254A1 (en) | 2016-05-19 | 2017-11-23 | Bromine Compounds Ltd. | A process for recovering gold from ores |
| CN111106004A (en) * | 2018-10-29 | 2020-05-05 | 东泰高科装备科技有限公司 | Gallium arsenide etching method |
| AU2020237025A1 (en) | 2019-03-13 | 2021-09-16 | Bromine Compounds Ltd. | A process for recovering gold from ores |
| CN113789525A (en) * | 2021-09-29 | 2021-12-14 | 山东海王化工股份有限公司 | Process for producing bromine by electrolyzing and acidifying sodium bromide |
| CN114933283A (en) * | 2022-04-24 | 2022-08-23 | 天津长芦汉沽盐场有限责任公司 | Production process of bromine from desalted concentrated seawater |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3873438A (en) * | 1971-09-08 | 1975-03-25 | Engelhard Min & Chem | Electrolytic cell assembly including bipolar concentric electrodes |
| US4110180A (en) * | 1976-04-28 | 1978-08-29 | Diamond Shamrock Technologies S.A. | Process for electrolysis of bromide containing electrolytes |
| GB2045218B (en) * | 1979-03-23 | 1982-11-10 | Euratom | Process for the removal of so2 from waste gases producing hydrogen and sulphuric acid |
| LU85457A1 (en) * | 1984-07-10 | 1985-09-12 | Euratom | METHOD FOR THE PRODUCTION OF HYDROGEN AND SULFUR FROM HYDROGEN SULFUR AND GASES CONTAINING SULFURANT |
| US4904358A (en) * | 1988-02-16 | 1990-02-27 | Inland Aqua-Tech Co., Inc. | Gold and silver recovery processes by electrolytic generation of active bromine |
-
1991
- 1991-08-29 CA CA002050201A patent/CA2050201C/en not_active Expired - Lifetime
- 1991-08-29 EP EP91307894A patent/EP0476862A1/en not_active Withdrawn
- 1991-08-30 AU AU83461/91A patent/AU643319B2/en not_active Ceased
- 1991-09-02 ZA ZA916961A patent/ZA916961B/en unknown
- 1991-09-02 IL IL9937191A patent/IL99371A/en not_active IP Right Cessation
- 1991-09-04 JP JP3250222A patent/JPH05117888A/en not_active Withdrawn
- 1991-09-04 BR BR919103819A patent/BR9103819A/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0580780A4 (en) * | 1991-04-12 | 1994-03-23 | Great Lakes Chemical Corporation | |
| WO2013078553A1 (en) * | 2011-12-01 | 2013-06-06 | Metafix Inc. | Method for reducing chromium |
| US9382140B2 (en) | 2011-12-01 | 2016-07-05 | Metafix Inc. | Method for reducing chromium |
| CN114956264A (en) * | 2022-06-09 | 2022-08-30 | 南京华工创新环境研究院有限公司 | Method for separating bromine in liquid by using electrochemistry |
| CN114956264B (en) * | 2022-06-09 | 2023-06-30 | 南京华工创新环境研究院有限公司 | Method for separating bromine in liquid by using electrochemistry |
Also Published As
| Publication number | Publication date |
|---|---|
| BR9103819A (en) | 1992-05-19 |
| IL99371A (en) | 1996-01-19 |
| AU643319B2 (en) | 1993-11-11 |
| CA2050201C (en) | 2001-11-06 |
| AU8346191A (en) | 1992-03-12 |
| EP0476862A1 (en) | 1992-03-25 |
| IL99371A0 (en) | 1992-08-18 |
| ZA916961B (en) | 1992-05-27 |
| JPH05117888A (en) | 1993-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2050201A1 (en) | Electrogeneration of bromine and use thereof in recovery of precious metals and water treatment | |
| ATE535262T1 (en) | METHOD AND DEVICE FOR GENERATING WATER WITH NEGATIVE AND POSITIVE REDOX POTENTIAL (ORP) | |
| GB1375025A (en) | Electrolytic process and apparatus for removal of contaminants from wastes | |
| TW344663B (en) | Liquid purification apparatus | |
| GB1507324A (en) | Electrolytic process and apparatus for treating liquids | |
| MY124928A (en) | Electrodeionization apparatus and method of operating the same | |
| CA2061723A1 (en) | Method for the combined removal and destruction of nitrate ions | |
| FR2436826A1 (en) | IMPROVED ELECTRODE FOR THE ELECTROLYSIS OF AQUEOUS METAL HALIDE SOLUTIONS | |
| GB9620167D0 (en) | Electrochemical processing of liquid such as water | |
| US4385969A (en) | Method of regenerating an ammoniacal etching solution | |
| RU92004369A (en) | METHOD FOR TREATING HERBAL MEANS | |
| CN101289242B (en) | Water treatment method | |
| GB1437131A (en) | Apparatus for treating waste water using an electrolytic cell | |
| EP0834345A3 (en) | Electrochemical process for purifying hydroxide compounds | |
| Dadgar et al. | Electrogeneration of Bromine and Use Thereof in Recovery of Precious Metals and Water Treatment | |
| GB1533641A (en) | Absorption of chlorine gas | |
| JPS5319171A (en) | Separating and recovering method of good efficiency for acid and metal from solution containing acid and metal salt | |
| GB1256589A (en) | ||
| JP3455121B2 (en) | Aqueous solution for producing acidic electrolyzed water and method for producing acidic electrolyzed water | |
| KR850001335B1 (en) | The method for treatment of wastewater include heavy metal | |
| RU2039703C1 (en) | Method for purification of sodium chloride solutions | |
| JPS6240327A (en) | Separation of ion | |
| JPS6046042B2 (en) | Method for producing iodine from natural can water | |
| JPH0417633A (en) | Method for recovering pure copper | |
| SU865828A1 (en) | Method of purifying mineralized water from hydrogen sulfide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |