http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109402410-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/C22B7-006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B15-0091 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B15-0082 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B23-0461 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B23-0407 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B30-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B30-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B15-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B23-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B30-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B30-02 |
| filingDate | 2018-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109402410-B |
| titleOfInvention | Method for enriching precious metals through iron matte acid slag pretreatment |
| abstract | The invention discloses a method for enriching precious metals by pretreating iron matte acid-soluble slag, and belongs to the technical field of precious metal hydrometallurgy. The invention comprises the following steps: carrying out water leaching treatment on the iron matte acid leaching slag, and carrying out solid-liquid separation to obtain a water leaching solution and water leaching slag; separating impurity elements such as copper, arsenic, antimony, nickel and the like from the water leaching residue by a potential-controlled leaching process to obtain impurity-removed liquid and impurity-removed residue; desulfurizing the impurity-removed slag by adopting a sulfating roasting process to obtain high-grade precious metal gold mud, and then recovering gold, silver and other precious metals in the gold mud by adopting a conventional method; separating valuable metal antimony from the mixed leaching solution by adopting a hydrolysis process to obtain an antimony oxychloride intermediate product and an antimony separating solution; recovering copper from the antimony separating liquid, and oxidizing the copper separating liquid to fix arsenic; and carrying out rotary evaporation treatment on the arsenic removal liquid to obtain a nickel salt crude product. The method can effectively separate and recover various metals in the iron matte acid slag, has higher recovery rate of valuable metals, and can effectively treat harmful arsenic element in the iron matte acid slag. |
| priorityDate | 2018-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 71.