http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5282884-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_775d1a0c5e5b526b08008f32f0033fab |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B11-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-24 |
| filingDate | 1992-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1994-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e63df5c0e8ae3fbbbea6d3ecadbc9f6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_683cc67b187111de560bf23022793e30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_daa2dc6ba66568a5f836720d9d32d6ee |
| publicationDate | 1994-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5282884-A |
| titleOfInvention | Process for the recovery of noble metals and tertiary phosphines |
| abstract | The present invention concerns a process for the recovery of a noble metal from an inorganic and/or organic residue in the form of a tellurium/noble metal precipitate characterised by adding a solvent having a boiling point above 120° C. to the residue, removing by distillation water and other residual solvents having boiling points below the boiling point of the added solvent, adding the tellurium or reducible tellurium compound, and then refluxing at atmospheric pressure before separating the tellurium/noble metal precipitate. The process of the present invention also allows the simultaneous recovery of the tertiary phosphine as its oxide from a residue containing a tertiary phosphine by the further stages of concentrating the mother-liquors remaining after separation of the tellurium/noble metal precipitate, recovering the added high boiling point solvent and isolating the tertiary phosphine in the form of its oxide by precipitation with water. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EA-018357-B1 |
| priorityDate | 1991-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 50.