http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111606308-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B11-042 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B19-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-007 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B19-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-00 |
| filingDate | 2020-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111606308-B |
| titleOfInvention | A method for efficient separation and recovery of tellurium from copper anode slime and copper slag |
| abstract | The invention belongs to the field of hydrometallurgy in nonferrous metallurgy, in particular to a method for efficiently separating and recovering tellurium from copper anode slime and copper slag, which can effectively realize the efficient separation of tellurium from copper anode slime and copper slag. In this method, the copper anode slime is divided into copper slag and the hydrochloric acid oxidation system is used to realize the high-efficiency leaching process of tellurium. The leaching rate of tellurium is more than 90%, and the leaching rate of gold is more than 99%. The gold precipitation rate is above 99%, tellurium basically does not precipitate, and then the platinum and palladium in the solution are reduced and precipitated by adding a weak reducing agent evenly and slowly, and the concentration of gold, platinum and palladium ions in the solution can be reduced to 0.001g/L after platinum and palladium are reduced Next, after the reduction of platinum and palladium, the solution is added with a reducing agent to deeply reduce the precipitated tellurium, and the quality of the coarse tellurium powder is more than 95%, and the recovery rate of tellurium is more than 90%. These links are closely related, and they work together to realize the efficient separation and recovery of gold and tellurium in the copper separation slag. The invention has the advantages of stable technological index, low labor intensity, low production cost and the like. |
| priorityDate | 2020-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.