http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110117716-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/B07C5-3425 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B11-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B07C5-3422 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B07C5-342 |
| filingDate | 2019-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-11-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-11-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110117716-B |
| titleOfInvention | Short-process gold extraction method for alkaline sulfur-arsenic coated gold ore |
| abstract | The invention relates to a process technology for extracting noble metal gold from ores, and particularly discloses a short-flow gold extraction method for alkaline sulfur-arsenic coated gold ores; reducing the acid consumption of the ore entering the heap by a carbonate sorting process, further applying nitric acid to carry out acidification treatment, and adjusting the pH value of the seepage liquid obtained after acidification of the ore heap by nitric acid or sulfuric acid; inoculating microorganisms to carry out biological heap leaching oxidation after the ore heap acidification is finished, and adjusting the pH value of the biological leaching solution by using acid or alkali; after the biological oxidation of the ore heap is finished, extracting gold by using a non-cyanide leaching agent prepared from thiocyanate, thiourea, sulfuric acid and the like; the dumped ore is mixed with carbonate products in the carbonate sorting process to avoid waste stone heap acidification. The invention expands the application range of the biological heap leaching technology, provides a new choice for the development of alkaline sulfur-arsenic coated refractory gold ores, and increases the resource reserves of available gold. |
| priorityDate | 2019-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.