| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0b0bb8a14ce61464bc97c8e360905df2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_45e1581e2204a2268c3260484faad3de
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_58b7b9483b5d19a9bfc53b6b1b3b2f27
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_424db9d56b06a23aed410fcf5df652f3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_868d08892ece575339440d29de224775
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e85a69cb28c8e5e7788c4e4043b0d712
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c21db9d22ea7d4cc9ab02d3ff51a245a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_56a3efe5f770b4a9d34e2d297bc1d2ae |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B47-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C235-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B59-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-02 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-44 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B59-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B47-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C235-06 |
| filingDate |
2011-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2015-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_da5ece5fcba0d40dade4ea928314ffeb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c03d3e102a6bcefcb94dc738ef7a088d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1d3cc6fe307e2f1461f949be20a6f40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5dcc0a3eb7a1af59045aa2d02593bfbf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0fa82fbf2d20737882de09a73c67e8ac
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d53e260ab8469247a8604f81274372ad |
| publicationDate |
2015-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9133100-B2 |
| titleOfInvention |
Method for synthesizing rare earth metal extractant |
| abstract |
A rare earth metal extractant containing, as the extractant component, dialkyldiglycol amide acid which is excellent in breaking down light rare earth elements is reacted in diglycolic acid (X mol) and an esterification agent (Y mol) at a reaction temperature of 70° C. or more and for a reaction time of one hour or more such that the mol ratio of Y/X is 2.5 or more, and is subjected to vacuum concentration. Subsequently, a reaction intermediate product is obtained by removing unreacted products and reaction residue. Then a nonpolar or low-polar solvent which is an organic solvent for forming an organic phase during solvent extraction of the rare earth metal and which is capable of dissolving dialkyldiglycol amide acid is added as the reaction solvent, and the reaction intermediate product is reacted with dialkyl amine (Z mol) such that the mol ratio of Z/X is 0.9 or more. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2020270721-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11505632-B2 |
| priorityDate |
2010-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |