GB2009791A - Recovery of Metals from Liquid Media by Electrolytic Deposition - Google Patents
Recovery of Metals from Liquid Media by Electrolytic DepositionInfo
- Publication number
- GB2009791A GB2009791A GB7840937A GB7840937A GB2009791A GB 2009791 A GB2009791 A GB 2009791A GB 7840937 A GB7840937 A GB 7840937A GB 7840937 A GB7840937 A GB 7840937A GB 2009791 A GB2009791 A GB 2009791A
- Authority
- GB
- United Kingdom
- Prior art keywords
- medium
- liquid medium
- metal
- metals
- 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
- 239000002184 metal Substances 0.000 title abstract 7
- 229910052751 metal Inorganic materials 0.000 title abstract 7
- 239000007788 liquid Substances 0.000 title abstract 5
- 230000008021 deposition Effects 0.000 title 1
- 150000002739 metals Chemical class 0.000 title 1
- 238000011084 recovery Methods 0.000 title 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 239000008139 complexing agent Substances 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 abstract 1
- 229960001484 edetic acid Drugs 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 abstract 1
- 238000009713 electroplating Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 239000002699 waste material Substances 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
- C22B3/32—Carboxylic acids
-
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/303—Complexing agents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Metallurgy (AREA)
- Hydrology & Water Resources (AREA)
- Geology (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Electrolytic Production Of Metals (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Removal Of Specific Substances (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Chemically Coating (AREA)
Abstract
A process for recovering a metal contained in a liquid medium, in the form of a complex salt, comprises incorporating a reducing agent such as formaldehyde with the liquid medium and contacting the medium at a pH of at least 10 with a metal surface, preferably a refined steel surface, so that metal contained in the medium is deposited on the metal surface. The liquid medium may be a waste liquor, for example excess electrolyte from an electroplating process and may contain a complex copper-salt with ethylene diamine tetra-acetic acid. The metal deposited on the metal surface may be recovered by anodic dissolution for recycling, and the complexing agent in the liquid medium may be recovered by acidifying the medium for example by addition of sulphuric acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772747562 DE2747562A1 (en) | 1977-10-20 | 1977-10-20 | PROCESS AND PLANT FOR THE RECOVERY OF METALS AND OTHER RECYCLING SUBSTANCES IN WASTE WATER FROM CHEMICAL SURFACE TREATMENT PLANTS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2009791A true GB2009791A (en) | 1979-06-20 |
| GB2009791B GB2009791B (en) | 1982-06-30 |
Family
ID=6022078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7840937A Expired GB2009791B (en) | 1977-10-20 | 1978-10-18 | Process and apparatus for the recovery of metals from liquid media |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2747562A1 (en) |
| FR (1) | FR2406611A1 (en) |
| GB (1) | GB2009791B (en) |
| IT (1) | IT1101254B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0056832A1 (en) * | 1981-01-27 | 1982-08-04 | Shipley Company Inc. | Solution waste treatment |
| DE4340356A1 (en) * | 1993-11-26 | 1995-06-01 | Wieland Edelmetalle | Method and device for breaking down hard complexing agents in aqueous solution |
| FR3156254A1 (en) | 2024-06-20 | 2025-06-06 | Tekcem | Active antenna including a single-spiral loop |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1521444B1 (en) * | 1965-04-27 | 1969-11-06 | Photocircuits Corp | Bath for the electroless deposition of copper |
| NL151963B (en) * | 1972-05-19 | 1977-01-17 | Houseman & Dirkzwager N V | METHOD OF REMOVING COPPER FROM WATER. |
| US3917885A (en) * | 1974-04-26 | 1975-11-04 | Engelhard Min & Chem | Electroless gold plating process |
| CH633497A5 (en) * | 1977-03-30 | 1982-12-15 | Kernforschungsanlage Juelich | METHOD FOR REDUCING REDUCABLE POLLUTANTS IN AQUEOUS SOLUTIONS. |
-
1977
- 1977-10-20 DE DE19772747562 patent/DE2747562A1/en active Granted
-
1978
- 1978-10-18 GB GB7840937A patent/GB2009791B/en not_active Expired
- 1978-10-19 IT IT28888/78A patent/IT1101254B/en active
- 1978-10-19 FR FR7829769A patent/FR2406611A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| IT1101254B (en) | 1985-09-28 |
| DE2747562A1 (en) | 1979-05-03 |
| FR2406611B1 (en) | 1984-11-16 |
| GB2009791B (en) | 1982-06-30 |
| FR2406611A1 (en) | 1979-05-18 |
| IT7828888A0 (en) | 1978-10-19 |
| DE2747562C2 (en) | 1987-07-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |