http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104109762-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_90cdb15a486205be46dceda6e564cd26 |
| 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/C22B3-14 |
| filingDate | 2014-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9d3c7cd0ee19b5558a9dcfa9fe0de3f2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f82cbec6db22c2efe117dc62b9f82516 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5b6c52d42219f5dd8c22eb9dc47db4e5 |
| publicationDate | 2015-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104109762-B |
| titleOfInvention | Environment-friendly nontoxic gold extractant, and preparation method and gold extraction method thereof |
| abstract | The invention discloses an environment-friendly nontoxic gold extractant, and a preparation method and gold extraction method thereof, relating to the field of gold refining. The gold extractant comprises sodium oxide, sodium chloride, quicklime, calcium hydroxide, glycine, ammonium nitrate and potassium permanganate. The gold extraction method comprises the following steps: preparing gold ore powder, preparing a gold separating agent solution, preparing an ore slurry of which the concentration is 40-50% and the pH value is 10-12, transferring the ore slurry into an extracting tank, and extracting for 6-15 hours to obtain a gold-containing extracting solution of which the extracting ratio is 98.7-99.3%; adding activated carbon into the gold-containing extracting solution to perform adsorption, thereby obtaining gold-carrying carbon; carrying out slime separation on the gold-carrying carbon, putting in an electrolytic tank using steel wool as a cathode, and desorbing to obtain gold-containing steel wool; and adding a reducer into the gold-containing steel wool to obtain gold powder, and melting the gold powder to obtain a gold ingot, wherein the total recovery rate of gold in the gold ores to be extracted is 89.4-97.8%. The gold extractant has the advantages of higher work efficiency, lower production cost, no toxicity and environment-friendliness. |
| priorityDate | 2014-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.