| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bd0cdbc5c67cf4957ed83c89140748e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-009
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-765
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G39-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G31-003 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G39-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B21-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-765
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B23-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G31-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-04 |
| filingDate |
1994-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1e15cb430dc6010b8830570cee8df4ad
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_86f8cfc55843482069cf3404692be190
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_280d4badd16de865f2e492811667e9a7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe63002aebb9be38612d7f9d8975dbb5 |
| publicationDate |
1995-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
FR-2717188-A1 |
| titleOfInvention |
Process for recovering valuable metals from spent catalyst |
| abstract |
- The invention relates to a process for recovering valuable metals from a used catalyst. - The process comprises the steps of: a) calcining the used catalyst at a temperature of 400 ° C to 1000 ° C; b) dissolving the calcined product with sulfuric acid in the presence of a soluble metal catalyst to prepare a reducing solution; c) separation and recovery of the aluminum in the form of ammonium aluminum sulfate from the reducing solution; d) extraction of molybdenum from the residual solution of step (c); e) extraction of vanadium from the residual solution of step (d) and f) recovery of nickel and cobalt in the form of a hydroxide from the residual solution of step (e). - Application to the recovery of valuable metals contained in used catalysts. |
| priorityDate |
1994-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |