GB829972A - Process for recovering platinum group metal from composites containing same and alumina - Google Patents
Process for recovering platinum group metal from composites containing same and aluminaInfo
- Publication number
- GB829972A GB829972A GB3518257A GB3518257A GB829972A GB 829972 A GB829972 A GB 829972A GB 3518257 A GB3518257 A GB 3518257A GB 3518257 A GB3518257 A GB 3518257A GB 829972 A GB829972 A GB 829972A
- Authority
- GB
- United Kingdom
- Prior art keywords
- metal
- alumina
- noble metal
- acid
- digestion
- 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
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title abstract 8
- 229910052751 metal Inorganic materials 0.000 title abstract 6
- 239000002184 metal Substances 0.000 title abstract 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title abstract 4
- 239000002131 composite material Substances 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 6
- 239000003054 catalyst Substances 0.000 abstract 6
- 159000000013 aluminium salts Chemical class 0.000 abstract 5
- 229910000510 noble metal Inorganic materials 0.000 abstract 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 4
- 229910000329 aluminium sulfate Inorganic materials 0.000 abstract 4
- 230000029087 digestion Effects 0.000 abstract 4
- 239000001117 sulphuric acid Substances 0.000 abstract 4
- 235000011149 sulphuric acid Nutrition 0.000 abstract 4
- 239000002253 acid Substances 0.000 abstract 3
- 229910052697 platinum Inorganic materials 0.000 abstract 3
- 229920002401 polyacrylamide Polymers 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- -1 Platinum group metals Chemical class 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 238000010908 decantation Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- 239000006228 supernatant Substances 0.000 abstract 1
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
- C22B11/04—Obtaining noble metals by wet processes
- C22B11/042—Recovery of noble metals from waste materials
- C22B11/048—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
- B01J23/90—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)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Catalysts (AREA)
Abstract
During the treatment of spent alumina platinum group metal catalysts to recover the metal values contained therein, solutions of aluminium salts such as the sulphate and chloride are formed by heating the spent catalyst to 121-204 DEG C. at a pressure of 1.14 to 18 atmospheres with a concentrated acid such as sulphuric or hydrochloric acid. In an example quoted, the catalyst was heated with 95% sulphuric acid for 4 hours at 149 DEG C. in a sealed vessel. At the completion of the digestion, a polyacrylamide which has been 10-50% hydrolysed, by sodium hydroxide for example, is added to coagulate the noble metal, in an amount of 0.001-5% by weight of the aluminium salt present. The noble metal is allowed to settle for 1 hour and the solution of the aluminium salt is removed by decantation. Specification 755,487 is referred to.ALSO:Platinum group metals are recovered from spent catalysts consisting of a mixture of the metal and alumina, by digesting the mixture with acid to dissolve the alumina and adding a partially hydrolysed polyacrylamide to coagulate the platinum which is then separated from the solution of the aluminium salt. The spent catalyst is first heated in a oxidizing atmosphere to remove carbonaceous matter and is then heated to 121 DEG C-204 DEG C at a pressure of 1.14 to 18 atmospheres with concentrated acid e.g. sulphuric or hydrochloric acid. In an example quoted, the time for digestion was 4 hours at 149 DEG C, using 95% sulphuric acid in a sealed vessel. When treating a platinum-containing catalyst, a quantity of aluminium particles at least equal to the theoretical quantity required to precipitate any soluble platinum as metal may be added during the later stages of the digestion. At the completion of the digestion, a polyacrylamide which has been 10-50% hydrolysed, by sodium hydroxide for example, is then added to coagulate the noble metal, in an amount of 0.001%-5% by weight of the aluminium salt present. The noble metal is allowed to settle for 1 hour, the supernatant liquid decanted and the noble metal recovered. Specification 755,487 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US829972XA | 1956-11-15 | 1956-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB829972A true GB829972A (en) | 1960-03-09 |
Family
ID=22174773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3518257A Expired GB829972A (en) | 1956-11-15 | 1957-11-12 | Process for recovering platinum group metal from composites containing same and alumina |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB829972A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002018663A3 (en) * | 2000-08-29 | 2002-08-22 | Sasol Tech Pty Ltd | Selective recovery of aluminium, cobalt and platinum values from a spent catalyst composition |
| CN109200978A (en) * | 2018-03-01 | 2019-01-15 | 中国石油大学(北京) | Handle the method and system of chlorine aluminium acidic ionic liquids dead catalyst and alkaline waste water |
| WO2023018536A1 (en) | 2021-08-13 | 2023-02-16 | Exxonmobil Chemical Patents Inc. | Processes for dehydrogenating alkanes and alkyl aromatic hydrocarbons |
| WO2023018527A1 (en) | 2021-08-11 | 2023-02-16 | Exxonmobil Chemical Patents Inc. | Processes for dehydrogenating alkanes and alkyl aromatic hydrocarbons |
-
1957
- 1957-11-12 GB GB3518257A patent/GB829972A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002018663A3 (en) * | 2000-08-29 | 2002-08-22 | Sasol Tech Pty Ltd | Selective recovery of aluminium, cobalt and platinum values from a spent catalyst composition |
| CN109200978A (en) * | 2018-03-01 | 2019-01-15 | 中国石油大学(北京) | Handle the method and system of chlorine aluminium acidic ionic liquids dead catalyst and alkaline waste water |
| CN109200978B (en) * | 2018-03-01 | 2023-06-06 | 中国石油大学(北京) | Method and system for treating waste catalyst of chloroaluminate ionic liquid and alkaline wastewater |
| WO2023018527A1 (en) | 2021-08-11 | 2023-02-16 | Exxonmobil Chemical Patents Inc. | Processes for dehydrogenating alkanes and alkyl aromatic hydrocarbons |
| WO2023018536A1 (en) | 2021-08-13 | 2023-02-16 | Exxonmobil Chemical Patents Inc. | Processes for dehydrogenating alkanes and alkyl aromatic hydrocarbons |
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