| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_52aa679f3fd77d6125bcf31c40e9ac3c |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D11-028
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B11-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D11-0257
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B15-0071
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B1-11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B15-0076
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B11-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D11-0288 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B1-11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B15-00 |
| filingDate |
2018-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3e1dc9369042102c5f62a6455a52964
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_941192471122b85113290c8402da1e3b |
| publicationDate |
2018-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2018298466-A1 |
| titleOfInvention |
Low Acidity, Low Solids Pressure Oxidative Leaching of Sulphidic Feeds |
| abstract |
Process for recovering one or both of copper and silver from a sulphidic feed containing iron, arsenic, copper and silver by pressure oxidizing an aqueous feed slurry of the sulphidic feed in a pressure vessel to form a liquid phase containing free sulphuric acid and aqueous copper sulphate, and to precipitate arsenic as solid iron arsenic compounds. The process includes operating the pressure vessel at a sufficiently low solids content to maintain a free acid level below 30 g/L in the liquid phase, and providing sufficient heat to maintain a temperature in the pressure vessel above 200° C. Copper metal is recovered from the liquid phase and/or silver may be recovered from the solids by cyanide leaching without the need for a jarosite destruction step. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023023861-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11584975-B1 |
| priorityDate |
2017-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |