http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105886769-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00 |
| filingDate | 2015-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105886769-B |
| titleOfInvention | A method for dissolving multi-metal alloy materials and collecting precious metals in nitric acid |
| abstract | The invention discloses a method for dissolving multi-metal alloy materials and collecting precious metals with nitric acid. The process is to mix the multi-metal alloy material with nitric acid, place it in a titanium reactor for leaching, heat it to 85-95°C, and keep it for a period of time. Diluted with 6 times of water, the purpose is to reduce the acidity and increase the pH value of the end point to about 1‑3, which is convenient for the filtration and separation of the main metals such as lead, nickel and copper from the precious metals; after filtration and washing, the leachate and leach residue are obtained respectively, and the leachate contains Lead, copper, etc., as raw materials for recovering lead and copper, the leaching slag contains bismuth, antimony, gold, silver, platinum, palladium, etc.; use pressure alkali leaching to extract antimony, filter and wash to obtain alkali leaching solution and alkali leaching residue , the precious metals enter the slag, and the precious metals are effectively enriched. The method has simple process operation, mature production equipment involved, easy industrialization, environmental friendliness, low production cost, high precious metal enrichment ratio, and good industrial application prospect. |
| priorityDate | 2015-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 55.