http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2559599-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0f88f3b9180773e7b34fd4be91c8cd41 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B15-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B19-00 |
| filingDate | 2014-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_82a5bc11b76ce2d413685349a2804238 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53475881250c379b809763f488524471 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1a8c8f052f5858099d26f7f4fd8a72f4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_258c0c2ba758d43668bb1ef430c5bc0e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_46365145498ad3af65462fcb6a772053 |
| publicationDate | 2015-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2559599-C1 |
| titleOfInvention | Method of improving extraction of valuable components from sulphide material by electric pulse treatment |
| abstract | FIELD: chemistry. n SUBSTANCE: method includes washing material with water to obtain a solid residue, preparing a sulphate solution, from which iron, copper and zinc are extracted by transferring iron into the residue in the form of iron hydroxide Fe(OH) 3 , precipitating copper from the filtrate with scrap iron, precipitating zinc from the filtrate with hydrogen sulphide. The filtrate, which contains Na 2 SO 4 and acid, is then mixed with Ca(OH) 2 to recycle the sodium sulphate and sulphuric acid in the form of a gypsum residue to obtain a filtrate with sodium hydroxide and accumulation of the filtrate for recycling NaOH. The solid residue obtained from the sulphide raw material is re-pulped and the pulp is treated with electric pulses with energy of 3.5-5.5 J, under the action of which pyrrhotine, chalcopyrite, sphalerite and sulphides decompose into iron, copper and zinc oxides and hydrogen sulphide. The liquid phase is then filtered out from the formed pulp and used as recycled water. The oxides of said metals are dissolved in sulphuric acid. The sulphate solution is filtered. Products containing iron, copper, zinc and gypsum are selectively extracted from the filtrate and gold is obtained from the residue, which contains quartz, sericite, gold and low-solubility minerals, by cyanation. Hydrogen sulphide is used to precipitate zinc. n EFFECT: improved metal extraction. n 1 dwg, 2 ex |
| priorityDate | 2014-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 66.