http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2870232-T3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1eb6ca50330c3b9e1cd8b65d33fb4188 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B59-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-006 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B59-00 |
| filingDate | 2018-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ceb9fe7edb3aac7397a46a06f6a3e0a5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8eb5c492b1454b9c70d4a32395e07429 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c438d4196a2cbbfd7ee204da6b2ac525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f47b8ace3a75c67b7801ff120d302a12 |
| publicationDate | 2021-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-2870232-T3 |
| titleOfInvention | Extraction of rare earth elements with deep eutectic solvents |
| abstract | A procedure for the extraction of rare earth elements from a permanent magnet that contains them in the form of metal or alloy, where the procedure comprises the steps of: a) contacting the starting product containing rare earth elements in metal or alloy form with a deep eutectic solvent consisting of a mixture of (i) a hydrogen bond acceptor compound (HAE) (A) selected from a) a salt of Formula Cat + X- (I), where Cat + is a cation selected from the group consisting of any ammonium, imidazolium and phosphonium and X- is a Lewis base; b) betaine or a salt thereof; c) carnitine or a salt thereof; and (ii) a hydrogen bond donor compound (B) selected from alcohol (C1-C12), aldehyde (C1-12), carboxylic acid (C1-C18), urea (C1-C6), amide (C1-C12). ), nitrogen compound (C1-C12), amino acid (C1-C12) and sugar (C1-C12); in a molar ratio of (A) to (B) from 1:10 to 10: 1, where the deep eutectic solvent is capable of extracting at least 50% w / w of one or more rare earth elements contained in the solid starting product in less than 5 hours when the step of contacting the starting product containing rare earth elements with the deep eutectic solvent is carried out at a temperature of 60-90 ° C and in a ratio of weight of solid to liquid from 1:15 to 1: 150; and b) separating the solvent containing the rare earth elements in solution from the undissolved solid. |
| priorityDate | 2017-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 335.