| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bd0cdbc5c67cf4957ed83c89140748e |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B5-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B5-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B5-18 |
| filingDate |
2000-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_21b0f1831a3e00cde670983feddb3768 |
| publicationDate |
2002-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2002180145-A |
| titleOfInvention |
Method for producing high purity metal vanadium |
| abstract |
(57) [Problem] To provide a novel method for obtaining high-purity vanadium and its powder at low cost. SOLUTION: In a method for obtaining metal vanadium by reducing vanadium pentoxide, first, vanadium pentoxide as a raw material is heated in the coexistence of hydrogen to reduce it to a lower oxide such as divanadium trioxide or vanadium monoxide. Then, the obtained lower oxide is mixed with calcium or magnesium and heated at 690 ° C. or less to cause a reduction reaction, and metal vanadium is separated and recovered from the obtained reduction product. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112779447-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113732297-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018214830-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101451777-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11241740-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111733337-A |
| priorityDate |
2000-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |