GB457902A - A process for the recovery of crude precious metals - Google Patents
A process for the recovery of crude precious metalsInfo
- Publication number
- GB457902A GB457902A GB2816935A GB2816935A GB457902A GB 457902 A GB457902 A GB 457902A GB 2816935 A GB2816935 A GB 2816935A GB 2816935 A GB2816935 A GB 2816935A GB 457902 A GB457902 A GB 457902A
- Authority
- GB
- United Kingdom
- Prior art keywords
- precious metals
- lime
- recovery
- sweepings
- crude
- 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
-
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
In a process for the recovery of precious metals from sweepings, residues, ores, concentrates, &c., the material is smelted under reducing conditions without the use of collector metals, the proportions of lime, iron and silicon present being so adjusted that easily fusible slags are formed, the lime content of which exceeds the ferrous oxide content; whereby it is ensured that the precious metals do not appreciably migrate into the slag. If excess of sulphur is present it may first be removed by an oxidizing or sulphatizing roast. Sweepings may be briquetted with binders such as lime or pitch. The crude product, which may consist for example of a silver-gold-platinum-copper alloy, may be worked up by usual methods.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE457902X | 1934-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB457902A true GB457902A (en) | 1936-12-08 |
Family
ID=6539361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2816935A Expired GB457902A (en) | 1934-10-12 | 1935-10-11 | A process for the recovery of crude precious metals |
Country Status (3)
| Country | Link |
|---|---|
| AT (1) | AT148708B (en) |
| CH (1) | CH187747A (en) |
| GB (1) | GB457902A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0076049A1 (en) * | 1981-09-16 | 1983-04-06 | Matthey Rustenburg Refiners (Proprietary) Limited | Recovery of precious metals from leach residues |
-
1935
- 1935-10-04 AT AT148708D patent/AT148708B/en active
- 1935-10-05 CH CH187747D patent/CH187747A/en unknown
- 1935-10-11 GB GB2816935A patent/GB457902A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0076049A1 (en) * | 1981-09-16 | 1983-04-06 | Matthey Rustenburg Refiners (Proprietary) Limited | Recovery of precious metals from leach residues |
Also Published As
| Publication number | Publication date |
|---|---|
| AT148708B (en) | 1937-02-25 |
| CH187747A (en) | 1936-11-30 |
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