| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G5-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-045
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G41-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-007
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B11-046
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B11-042
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25C1-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25C7-005 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B4-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G7-00 |
| filingDate |
2015-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2018-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2018-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-106029573-B |
| titleOfInvention |
Recovery of gold and/or silver from scrap |
| abstract |
Gold and silver are selectively recovered to separate the gold and silver from the non-silver and non-gold materials in the scrap. In some cases, acid mixtures are used to recover gold and silver from scrap. The mixture comprises nitric acid and at least one supplementary acid such as sulfuric or phosphoric acid. The amount of nitric acid in the mixture is small compared to the amount of sulfuric or phosphoric acid in the mixture. Recovery of gold and silver using the acid mixture is improved by transmitting electrical current between the electrodes and the gold and silver of the scrap. Acid mixtures are used to recover silver from certain types of scrap, such as scrap containing metallic silver and chromium oxide and scrap containing metallic silver and tungsten. |
| priorityDate |
2014-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |