GB795629A - Treatment of platinum-containing catalyst - Google Patents
Treatment of platinum-containing catalystInfo
- Publication number
- GB795629A GB795629A GB2117556A GB2117556A GB795629A GB 795629 A GB795629 A GB 795629A GB 2117556 A GB2117556 A GB 2117556A GB 2117556 A GB2117556 A GB 2117556A GB 795629 A GB795629 A GB 795629A
- Authority
- GB
- United Kingdom
- Prior art keywords
- platinum
- catalyst
- complex
- metallic
- volatile
- 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
- C22B11/026—Recovery of noble metals from waste materials from spent catalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/02—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the alkali- or alkaline earth metals or beryllium
- B01J23/04—Alkali metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/90—Regeneration or reactivation
- B01J23/96—Regeneration or reactivation of catalysts comprising metals, oxides or hydroxides of the noble metals
-
- 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)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Catalysts (AREA)
Abstract
Platinum is recovered from used platinum-containing catalyst by treating the catalyst at elevated temperature with a gaseous agent capable of forming a volatile platinum carbonyl chloride complex, and separating and decomposing the volatile complex to recover substantially pure platinum. The gaseous agent may be phosgene or a mixture of carbon tetrachloride and carbon dioxide. Treatment may take place at 450-800 DEG F. for 5-60 minutes. The effluent gas containing the platinum complex may be led into water and metallic platinum obtained by reduction with hydrogen provided by the addition of metallic magnesium; alternatively the platinum may be precipitated by addition of hydrogen sulphide, followed by filtering off and igniting the precipitate. Another method for recovering platinum from the effluent gas is to heat the gas in a decomposition zone, the platinum if desired being deposited on a granular material circulating through the zone. A platinum on alumina catalyst containing less than 2 per cent platinum may be treated; the alumina remaining in the treating zone may be washed, dried and reimpregnated with platinum. The metallic platinum recovered may also be used in the formation of new catalyst.ALSO:Platinum is recovered from used platinum-containing catalyst by treating the catalyst at elevated temperature with a gaseous agent capable of forming a volatile platinum carbonyl chloride complex, and separating and decomposing the volatile complex to recover substantially pure platinum. The gaseous agent may be phosgene or a mixture of carbon tetrachloride and carbon dioxide. Treatment may take place at 450 DEG -800 DEG F. for 5-60 minutes. The effluent gas containing the platinum complex may be led into water and metallic platinum obtained by reduction with hydrogen provided by the addition of metallic magnesium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2117556A GB795629A (en) | 1956-07-09 | 1956-07-09 | Treatment of platinum-containing catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2117556A GB795629A (en) | 1956-07-09 | 1956-07-09 | Treatment of platinum-containing catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB795629A true GB795629A (en) | 1958-05-28 |
Family
ID=10158431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2117556A Expired GB795629A (en) | 1956-07-09 | 1956-07-09 | Treatment of platinum-containing catalyst |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB795629A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988006192A1 (en) * | 1987-02-13 | 1988-08-25 | The British Petroleum Company P.L.C. | Process for recovering platinum group metals |
-
1956
- 1956-07-09 GB GB2117556A patent/GB795629A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988006192A1 (en) * | 1987-02-13 | 1988-08-25 | The British Petroleum Company P.L.C. | Process for recovering platinum group metals |
| US4913736A (en) * | 1987-02-13 | 1990-04-03 | The British Petroleum Company P.L.C. | Process for recovering platinum group metals |
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