http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110629043-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/C22B30-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-165 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B30-06 |
| filingDate | 2019-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110629043-B |
| titleOfInvention | Bismuth extraction method based on phase transformation of bismuth sulfide ore |
| abstract | The invention relates to a bismuth extraction method based on bismuth sulfide ore phase transformation, which comprises the steps of mixing a phase transfer agent and bismuth sulfide ore, and pulping to obtain mixed slurry; wherein the phase inversion agent comprises a sulfonic acid; preferably, the bismuth sulfide ore is bismuth sulfide concentrate; placing the mixed slurry in a reaction kettle, carrying out oxygen pressure phase inversion reaction treatment, and carrying out solid-liquid separation to obtain phase inversion slag and phase inversion liquid; and carrying out acid leaching treatment on the phase inversion slag, and then carrying out solid-liquid separation to obtain a leaching solution and leaching slag. The bismuth extraction method can realize selective leaching of bismuth, reduce the purification burden of impurity elements such as iron, lead, silicon and the like in the leaching solution, and simplify the subsequent process flow of bismuth product recovery such as neutralization hydrolysis, electrodeposition and the like. |
| priorityDate | 2019-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 59.