http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102021333-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d40285e27f4ed83b8728b0d477404958 |
| 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/B01J20-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-32 |
| filingDate | 2009-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fed3319f15fdd9a341339252e103738d |
| publicationDate | 2014-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102021333-B |
| titleOfInvention | Method to purify precious metals from gold ore using functional mesoporous molecular sieve |
| abstract | The invention discloses a method to purify precious metals from gold ore using functional mesoporous molecular sieve, including the following steps: slurrying the gold ore, adjusting pH value of the slurry to about 1, adding functional mesoporous molecular sieve into the slurry to selectively adsorb palladium and platinum; adjusting the pH value of the slurry to about 2.5 to allow the functional mesoporous molecular sieve to selectively absorb gold; washing the molecular sieve carrying palladium ions and platinum ions, and molecular sieve carrying gold ions with hydrochloric acid, the concentration of which is in the range of from 3 to 6 M, thus making the precious metals desorbed into the solution and molecular sieves reactivated simultaneously. The functional mesoporous molecular sieve is a silicon mesoporous sieve grafted with amino or thiol. The purification method in the invention is characterized by simple process, high absorption rate of precious metals and environmental protection. |
| priorityDate | 2009-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.