http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2484018-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_97fb0c07835297814d6ada4c77c27097 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f55ab7da9187373110c1d53df4e353e4 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B59-00 |
| filingDate | 2010-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d6264767fe7945f06f0de67908a4e0ea http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b581fe5eb91db2c8726d0149c4f78ec3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b9633bf6aed0fc81ab6c5ca0dfc42d98 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e3ee98110e77b275c6ea7d1bd73febdc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_610ebf1cea7cc66aeb2c9b918773018b |
| publicationDate | 2013-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2484018-C2 |
| titleOfInvention | Method of treating rare-earth phosphate concentrate separated from apatite |
| abstract | FIELD: chemistry. n SUBSTANCE: invention relates to methods of separating deactivated rare-earth elements during nitric acid treatment of apatite concentrate from nitrate-phosphate solutions. The method of treating a rare-earth phosphate concentrate isolated from apatite involves decomposition of the rare-earth phosphate concentrate with nitric acid, treating the obtained solution with oxalic acid with precipitation of rare-earth oxalates in two steps, at the first step of precipitation of oxalates of thorium and rare-earth elements, 5-10% oxalic acid in stoichiometric amount is added to rare-earth elements present in the solution, and at the second step of precipitation of rare-earth oxalates, 110-115% oxalic acid in stoichiometric amount is added to rare-earth elements present in the initial solution, and the rare-earth oxalates are then calcined to rare-earth oxides. n EFFECT: invention provides high economic efficiency of the process, which is achieved by avoiding the need to process and bury the precipitate containing thorium. n 3 cl, 2 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2612244-C1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11091819-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2669031-C1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2551332-C1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2651549-C2 |
| priorityDate | 2010-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.