http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103114202-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2c27f4a786895417d03d0b1045587100 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-00 |
| filingDate | 2013-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c4a3fe894a19a20098ccaba8e1e3bb43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3b93143f7cb2b1c978e5fa5c804fe46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ffb9d122db8957602494272bd813e1a9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_af75cf7638c49f1635f1d24ddb414775 |
| publicationDate | 2015-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103114202-B |
| titleOfInvention | Comprehensive recovery process for environment-friendly type refractory gold-silver ore multi-metals |
| abstract | The invention relates to a comprehensive recovery process for environment-friendly type refractory gold-silver ore multi-metals, comprising the following steps of: adding sodium sulphite in refractory gold-silver ore powder and performing heating pre-treatment in a micro-oxygen-enriched atmosphere, leaching in sulphuric acid solution, leaching acid-leaching slag into sodium chloride solution, adding an organic chlorinating agent according to the weight of calcined sand, stirring and leaching, then filtering and washing to form pregnante solution and filter residue, and conveying the filter residue in a tailing pond; mixing the pregnante solution with chelating resin, stirring via an airflow to form gold-silver-loaded resin; and adjusting the pH of barren solution, adding solid sodium sulphate, and preparing a lead product from the filter residue. With the adoption of the comprehensive recovery process disclosed by the invention, oxidation time is shortened, production capacity is improved, calcination temperature is reduced, the generation of wrappages for gold and silver compounds which are difficult to disintegrate is avoided, the contents of carbon and sulphur in the calcined sand are reduced, the leaching rate of gold-silver is increased, the emitted smoke is reduced, and the smoke is adequately recovered and used for preparing acid; simultaneously, cyanide-containing waste is not drained, dual-pollution to environment is reduced, gold-silver leaching speed is fast, and the leaching rate of silver is higher compared with a cyaniding method; and lead is comprehensively recovered. |
| priorityDate | 2013-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 78.