http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113166845-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B15-0071 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B15-0069 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B15-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-10 |
| filingDate | 2019-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113166845-B |
| titleOfInvention | Solid-liquid-solid hydrometallurgical method for dissolving metals from copper sulfide minerals and/or concentrates |
| abstract | The present invention relates to a solid-liquid-solid hydrometallurgical process in the presence of hydrated and/or non-hydrated salts in a supersaturated state, achieved by the deliberate and repeated application of drying and wetting steps, enhancing mineral or refined Chemical and physical phenomena on mines that initiate crystallization, recrystallization and release of copper in the non-stoichiometric decomposition of sulfides and their subsequent precipitation with chlorides. The present invention consists of 3 steps, called: (a) wetting, (b) drying and supersaturation, (c) washing and re-wetting, these steps are carried out at temperatures in the range of 20-40°C without regard to Redox potential, minimal water and acid consumption, no need to add oxygen. This method allows to reduce the consumption of water and acid, since the conversion of sulfide can be carried out only in the presence of hydrated salts and/or with the addition of acid and water in small amounts. Furthermore, the present invention allows for a reduction in the use of water in the agglomeration and/or agglomeration-curing steps, since when the hydrated salt is mixed with the mineral, the water molecules of the hydrated salt wet the mineral, reducing the amount of water used in wetting and agglomeration and/or The amount of water that should be added during the curing step. The method of the present invention is also applicable to sulfide base metals, such as nickel, zinc, cobalt, lead, molybdenum, etc., irrespective of the usual impurities of sulfide minerals that occur in the presence of arsenic. |
| priorityDate | 2018-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 82.