http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104263973-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B1-02 |
| filingDate | 2014-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104263973-B |
| titleOfInvention | The method being prepared APT by the many closed loops of tungsten mineral material |
| abstract | A kind of method being prepared APT by tungsten mineral material, including: 1) prepare raw material；2) raw material roasting obtains grog；3) grog is leached with alkalescence system；4) leaching slurry solid-liquid separation, slag wash mutually, obtain thick ammonium tungstate solution and leached mud, and part leached mud returns step 1) carry out raw material configuration；5) thick ammonium tungstate solution purification and impurity removal；6) after purifying, liquid evaporative crystallization separates out APT, obtains ammonia and carbon dioxide simultaneously；7) serosity after crystallization is carried out solid-liquor separation, obtain crystalline mother solution and solid phase, solid phase is washed through water and/or ammonium salt solution, APT product is obtained after drying, crystalline mother solution and step 6) return to step 3 together with the ammonia that obtains and carbon dioxide), and leach grog at the ammonium carbonate Posterior circle of supplementary loss.The present invention has eradicated contaminated wastewater；Supplies consumption is greatly decreased, and flow process is simple, and easy to operate, production cost is low, and production efficiency is high. |
| 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: 83.