| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_868d08892ece575339440d29de224775
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_424db9d56b06a23aed410fcf5df652f3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B59-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00 |
| filingDate |
2009-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_679a98709cce7de218fb6585a9c04360
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cb9e8552cfdf4f198ff3a2367302ffd7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_52b767bc38d38f007cf14c3b0281183a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_341e795b5075daca19054cd246660839
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5db053b75fd837437d27bc2f0e9f7a93 |
| publicationDate |
2011-01-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2011001584-A |
| titleOfInvention |
Extraction and separation method of rare earth elements |
| abstract |
The present invention provides a method for extracting and separating rare earth elements capable of satisfactorily extracting and separating adjacent rare earth elements such as neodymium / praseodymium. An organic phase using diglycolamide acid as an extractant and a low-polar alcohol as a solvent is contacted with an aqueous phase comprising an aqueous solution containing two or more rare earth elements under acidic conditions of pH 3 or less. Solvent extraction using a flow multistage mixer settler. The rare earth element solution 1, the organic phase 2 and the alkaline aqueous solution 3 are introduced into the extraction part A from the respective pipes, and the acid aqueous solutions 4 and 6 are introduced into the scrub part B and the back extraction part C from the respective pipes. The aqueous phase 5 containing the rare earth element remaining without being extracted into the organic phase and the aqueous solution 7 obtained by back-extracting the rare earth element extracted into the organic phase are recovered. [Selection] Figure 1 |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20130134348-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103203120-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013103099-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113584305-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113584305-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114702057-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10407752-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2614868-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-2013200062-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10023937-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103203120-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013146472-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2014157225-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013209689-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115505763-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115505763-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2012137495-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013128830-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9376736-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013173994-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2621550-C2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2014157225-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115354157-A |
| priorityDate |
2009-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |