http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H05263161-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/B01J31-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-96 |
| filingDate | 1993-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1993-10-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H05263161-A |
| titleOfInvention | Recovery method for precious metal and tertiary phosphine |
| abstract | (57) [Summary] (Modified) [Objective] To provide a method that does not require an expensive high-pressure reactor. [Structure] A solvent having a boiling point of 120 ° C. or higher is added to an inorganic and / or organic residue, and another residual solvent having a boiling point of the added solvent or lower and water are removed by distillation, and tellurium or reducing tellurium is added. A process for recovering noble metals from inorganic and / or organic residues in the form of tellurium amalgam, characterized in that the compound is added and then refluxed at atmospheric pressure before separating the noble metal amalgam. Also, the mother liquor remaining after the separation of the noble metal amalgam is concentrated, the added high boiling solvent is recovered, and the tertiary phosphine is isolated in the form of its oxide by precipitation in water. A tertiary phosphine is simultaneously recovered as its oxide from the phosphine-containing residue. |
| 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: 42.