GB842946A - Method of producing copper metal powder - Google Patents
Method of producing copper metal powderInfo
- Publication number
- GB842946A GB842946A GB22703/58A GB2270358A GB842946A GB 842946 A GB842946 A GB 842946A GB 22703/58 A GB22703/58 A GB 22703/58A GB 2270358 A GB2270358 A GB 2270358A GB 842946 A GB842946 A GB 842946A
- Authority
- GB
- United Kingdom
- Prior art keywords
- copper
- reducing
- cobalt
- reduction
- solution
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
- B22F9/26—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions using gaseous reductors
-
- 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
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0084—Treating solutions
- C22B15/0089—Treating solutions by chemical methods
- C22B15/0093—Treating solutions by chemical methods by gases, e.g. hydrogen or hydrogen sulfide
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
Copper metal powder is produced from aqueous solutions or slurries containing salts of copper with salts of nickel and/or cobalt by reducing with a sulphur free reducing gas at elevated temperature and pressure, the method characterized by precipitating all the copper from a first batch of solution, some cobalt and nickel coating the copper particles, heating the precipitate in a second batch of solution between 90 DEG C. and the temperature at which the reduction is carried out so as to redissolve cobalt and nickel, again reducing until the solution is substantially depleted of dissolved copper, the reduction being thus carried out in a cyclic series of reducing steps in which the precipitate from the previous reduction is heated in fresh solution which is then reduced and discharged, and the precipitate therefrom carried forward to the suceeding reduction, until a final step in which the reduction of copper is left incomplete so that nickel and cobalt are not precipitated and the copper powder of high purity separated from the liquid. The last solution from which copper has not been completely removed may be passed to a succeeding cycle of reducing reactions. The fresh solution subjected to the reducing reaction contains at least 1.9 gram mols of free ammonia per gram atom of copper plus nickel and cobalt. A preferred temperature range is 120-270 DEG C. and a partial pressure of reducing gas from 13 to 26 atmospheres.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA842946X | 1957-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB842946A true GB842946A (en) | 1960-07-27 |
Family
ID=4172662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22703/58A Expired GB842946A (en) | 1957-11-20 | 1958-07-15 | Method of producing copper metal powder |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB842946A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019121086A1 (en) * | 2017-12-19 | 2019-06-27 | Basf Se | Battery recycling by treatment of the leach with metallic nickel |
-
1958
- 1958-07-15 GB GB22703/58A patent/GB842946A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019121086A1 (en) * | 2017-12-19 | 2019-06-27 | Basf Se | Battery recycling by treatment of the leach with metallic nickel |
| US20220136084A1 (en) * | 2017-12-19 | 2022-05-05 | Basf Se | Battery recycling by treatment of the leach with metallic nickel |
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