http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113430373-B
Outgoing Links
| Predicate | Object |
|---|---|
| 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/C07C227-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-12 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/C07C233-05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-32 |
| filingDate | 2021-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113430373-B |
| titleOfInvention | A method for separating rare earth elements |
| abstract | The invention provides a method for separating rare earth elements, using N,N-dihydrocarbylamino carboxylic acid compound as an extraction agent for separating rare earth elements, the extraction agent can separate and purify yttrium element from mixed rare earth raw materials; including Following steps: a), mixing the extractant with an organic solvent to obtain an extractant solution; b), mixing the extractant solution with an inorganic alkali solution, and performing saponification to obtain a saponified extractant solution; c), mixing the extractant solution with an inorganic base solution The saponified extractant solution is mixed with the rare earth solution for extraction, yttrium is enriched in the aqueous phase, and yttrium-poor rare earth is enriched in the organic phase. The extractant is simple in synthesis, low in cost, and has good chemical stability as an extractant, and can withstand strong acid and strong alkali without decomposing. The separation coefficient of lanthanide and yttrium is better than that of naphthenic acid, so it can replace naphthenic acid and has a good application prospect. |
| priorityDate | 2021-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 78.