http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104263976-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B34-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B1-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B1-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-14 |
| filingDate | 2014-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104263976-B |
| titleOfInvention | Metallurgical process of tungsten mineral raw materials with no pollution emission in the whole process |
| abstract | A metallurgical process for tungsten mineral raw materials is characterized in that it uses a weak base leaching agent that helps to form a local process cycle (in the prior art, the leaching agent must use strong alkali or strong acid), and its leaching solution produces two in the process of evaporation and crystallization. One or more than two kinds of gases, each gas can re-participate in the synthesis of the leaching agent, and the separated washing liquid after crystallization is also used as a leaching agent for recycling; The tungsten element is contained in the intermediate substance that is easily dissolved by the leaching agent, and the leaching slag also contains ingredient elements, so that at least part of the leaching slag can be used as ingredients for recycling. For this reason, the process includes multiple closed loops. No waste water discharge. The invention eradicates waste water pollution; the consumption of auxiliary materials is greatly reduced, the process is simple, the operation is convenient, and the production cost is low. |
| priorityDate | 2014-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 73.