http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2890572-C
Outgoing Links
Predicate | Object |
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assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bd0cdbc5c67cf4957ed83c89140748e |
classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B23-043 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B59-00 |
classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B59-00 |
filingDate | 2014-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate | 2016-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_957d6e1c49ff58ac010b583c2e8721e8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d04607de5fed4692472a18e1b013da8b |
publicationDate | 2016-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | CA-2890572-C |
titleOfInvention | Method for recovering scandium |
abstract | The present invention effectively recovers high-grade scandium from nickel oxide ores. The present invention includes a leaching step (S1) for charging nickel oxide ores and sulfuric acid into a pressurized container to cause solid-liquid separation of a leachate and a leaching residue under high temperature and high pressure, a neutralizing step (S2) for adding a neutralizing agent to the leachate to obtain a neutralized precipitate and a neutralized liquid, a sulfidizing step (S3) for adding a sulfidizing agent to the neutralized liquid to separate a nickel sulfide and a sulfidized liquid, an ion exchange step (S4) for bringing the sulfidized solution into contact with a chelate resin to adsorb Sc onto the chelate resin to obtain a Sc eluent, a solvent extraction step (S6) for bringing the Sc eluent into contact with an extracting agent to obtain a back-extraction liquid, a Sc precipitation step (S7) for adding a neutralizing agent or oxalic acid to the back-extraction liquid to obtain a precipitate, and a calcination step (S8) for drying and calcining the precipitate to obtain scandium oxide. |
priorityDate | 2013-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.