| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_048a2d2792c2acd484576e4d41899fc0 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B15-0078
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G3-003 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D11-04 |
| filingDate |
1975-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1977-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d057e6b1403e91827aea6a6c7496afb |
| publicationDate |
1977-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4048282-A |
| titleOfInvention |
Solvent extraction of copper with dilution of the organic phase |
| abstract |
A method of extracting copper from an aqueous ammoniacal leach solution which is derived from the leaching of copper dross and which contains impurity cations, comprising contacting the leach solution with a copper-selective organic phase to take copper into the organic phase and then stripping the copper from the organic phase into an aqueous phase, the organic phase being washed with a dilute acid before stripping, wherein before the organic phase is washed with the dilute acid the concentration of copper in the organic phase is reduced below a level at which poor phase separation occurs under acid conditions. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007292325-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005199617-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8298510-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-1035485-C |
| priorityDate |
1974-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |