Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_089d40759d5e23b2760341e8f5fd5ce8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_87504ac2b29d42d863cb6d67c86e8536 |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-129 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2208-00017 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2208-00752 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B7-035 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-1836 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-0015 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G31-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B9-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-26 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G31-04 |
filingDate |
2016-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e3e1795abe2050c2e81daa2097fa730 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e97fbba5d2b069cde25a7cd6f05416b8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53293ce56a592177f8971e94ac719e17 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_405860f16bcb0edb0b9088226d8c5090 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6667c36a570ccf5a6a59a762a509a1c5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_539c2a5f7452b7156953f0e8e6d4d144 |
publicationDate |
2018-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
NZ-733892-A |
titleOfInvention |
System and method for producing high-purity vanadium tetraoxide powder |
abstract |
The present invention provides a system and method for producing high-purity vanadium tetraoxide (ie vanadium(IV) oxide(VO2)) powder. Industrial grade vanadium pentoxide is converted to vanadium oxytrichloride by low temperature fluidizing chlorination, wherein chlorinating gas is preheated via heat exchange between fluidizing gas and chlorination flue gas, and an appropriate amount of air is added to enable a part of carbon powder to combust so as to achieve a balanced heat supply during the chlorination, thereby increasing the efficiency of chlorination and ensuring good selectivity in low temperature chlorination. The vanadium oxytrichloride is purified by rectification, and then subjected to fluidized gas phase hydrolyzation, thereby producing a high-purity vanadium pentoxide powder material and a by-product solution of hydrochloric acid, and further obtaining a high-purity vanadium tetraoxide powder product through fluidized hydrogen reduction. |
priorityDate |
2015-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |