RS20210768A1 - Procedure for retrieving the precious metal plating and the carrier from electronic components with nickel-containing intermediate layer - Google Patents
Procedure for retrieving the precious metal plating and the carrier from electronic components with nickel-containing intermediate layerInfo
- Publication number
- RS20210768A1 RS20210768A1 RS20210768A RSP20210768A RS20210768A1 RS 20210768 A1 RS20210768 A1 RS 20210768A1 RS 20210768 A RS20210768 A RS 20210768A RS P20210768 A RSP20210768 A RS P20210768A RS 20210768 A1 RS20210768 A1 RS 20210768A1
- Authority
- RS
- Serbia
- Prior art keywords
- copper
- nickel
- procedure
- gold
- precious metal
- Prior art date
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title abstract 8
- 239000010970 precious metal Substances 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 5
- 229910052759 nickel Inorganic materials 0.000 title abstract 4
- 238000007747 plating Methods 0.000 title abstract 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 6
- 229910052802 copper Inorganic materials 0.000 abstract 6
- 239000010949 copper Substances 0.000 abstract 6
- 229910000881 Cu alloy Inorganic materials 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 2
- 229910052737 gold Inorganic materials 0.000 abstract 2
- 239000010931 gold Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 238000011084 recovery Methods 0.000 abstract 2
- 229910000838 Al alloy Inorganic materials 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 229910001297 Zn alloy Inorganic materials 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- SFOSJWNBROHOFJ-UHFFFAOYSA-N cobalt gold Chemical compound [Co].[Au] SFOSJWNBROHOFJ-UHFFFAOYSA-N 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000009792 diffusion process Methods 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 abstract 1
- 239000008151 electrolyte solution Substances 0.000 abstract 1
- MSNOMDLPLDYDME-UHFFFAOYSA-N gold nickel Chemical compound [Ni].[Au] MSNOMDLPLDYDME-UHFFFAOYSA-N 0.000 abstract 1
- BBKFSSMUWOMYPI-UHFFFAOYSA-N gold palladium Chemical compound [Pd].[Au] BBKFSSMUWOMYPI-UHFFFAOYSA-N 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910001092 metal group alloy Inorganic materials 0.000 abstract 1
- 229910000923 precious metal alloy Inorganic materials 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
-
- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/005—Preliminary treatment of scrap
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- 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
-
- 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
- C22B11/042—Recovery of noble metals from waste materials
- C22B11/046—Recovery of noble metals from waste materials from manufactured products, e.g. from printed circuit boards, from photographic films, paper or baths
-
- 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
-
- 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
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/045—Leaching using electrochemical processes
-
- 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
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
-
- 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
- C23F1/00—Etching metallic material by chemical means
-
- 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
-
- 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
- C25C1/06—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese
- C25C1/08—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese of nickel or cobalt
-
- 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
-
- 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
- C22B11/02—Obtaining noble metals by dry processes
- C22B11/021—Recovery of noble metals from waste materials
- C22B11/025—Recovery of noble metals from waste materials from manufactured products, e.g. from printed circuit boards, from photographic films, paper, or baths
-
- 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)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Chemically Coating (AREA)
- Non-Insulated Conductors (AREA)
- Laminated Bodies (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The subject of the invention is a procedure for the recovery of the galvanic layer containing gold and other precious metals, as well as the carrier from electronic components. The base materials of the procedure are primarily electronic devices that are partly covered with precious metals. The main mass of the base material to be processed can be copper-based (copper or its compounds), iron-based (corrosion resistant steel), or light metal alloy (aluminium or zinc alloy). There has to be a nickel-containing layer under the precious metal-containing plating, and if the main mass is not copper or copper alloy, then there is a copper or copper alloy layer under the nickel-containing layer as well. Apart from recovering gold efficiently, the procedure can be applied for the recovery of other precious metals or precious metal alloys (e.g. silver, gold-palladium, gold-nickel, gold-cobalt, etc.). The basis of the procedure is the electrochemical removal of the diffusion-inhibiting nickel-containing intermediate layer from between the copper or copper-containing carrier or plating and the precious metal-containing plating. The electrolyte solution used in our invention is a water-based electrolyte that contains 695-1,760 g/l sulfuric acid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HU2000129A HU231291B1 (en) | 2020-04-08 | 2020-04-08 | Procedure for retrieving precious metal plating and the carrier from electronic components with nickel-containing intermediate layer |
| PCT/IB2020/055227 WO2020245736A1 (en) | 2019-06-06 | 2020-06-03 | Procedure for retrieving the precious metal plating and the carrier from electronic components with nickel-containing intermediate layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RS20210768A1 true RS20210768A1 (en) | 2021-10-29 |
| RS64226B1 RS64226B1 (en) | 2023-06-30 |
Family
ID=89993105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RS20210768A RS64226B1 (en) | 2020-04-08 | 2020-06-03 | Procedure for retrieving the precious metal plating and the carrier from electronic components with nickel-containing intermediate layer |
Country Status (3)
| Country | Link |
|---|---|
| HU (1) | HU231291B1 (en) |
| RS (1) | RS64226B1 (en) |
| WO (1) | WO2020245736A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3130849A1 (en) | 2021-12-17 | 2023-06-23 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Process useful for selectively solubilizing a nickel-based layer of a multilayer stack |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190813666A (en) * | 1908-06-27 | 1908-12-31 | Alfred Levy | Process for Removing the Electrolytic Nickel or other Metallic Coating of Metallic Surfaces. |
| JP5412184B2 (en) * | 2009-06-10 | 2014-02-12 | 三菱伸銅株式会社 | Recycling method for nickel-plated copper or copper alloy scrap |
| CN106029573B (en) * | 2014-02-26 | 2018-12-11 | 格林里昂集团有限公司 | The recycling of gold and/or silver in waste material |
-
2020
- 2020-04-08 HU HU2000129A patent/HU231291B1/en unknown
- 2020-06-03 RS RS20210768A patent/RS64226B1/en unknown
- 2020-06-03 WO PCT/IB2020/055227 patent/WO2020245736A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| RS64226B1 (en) | 2023-06-30 |
| HU231291B1 (en) | 2022-09-28 |
| HUP2000129A1 (en) | 2020-12-28 |
| WO2020245736A1 (en) | 2020-12-10 |
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