http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108950252-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/C22B3-3846 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B59-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B59-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-38 |
| filingDate | 2018-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108950252-B |
| titleOfInvention | A kind of separation method of fractional distillation extraction and co-production of pure samarium and pure terbium |
| abstract | The present invention is a separation method for co-producing pure samarium and pure terbium by fractional distillation and extraction. P229 is used as the extractant, 2N-3N grade samarium chloride solution is the first feed liquid, and 1N grade terbium chloride solution is the second feed liquid PrNdSm/SmEuGd is separated by fractional extraction, SmEuGdTb/TbDyHoY is separated by fractional extraction, PrNd/Sm is separated by fractional extraction, Sm/EuGd is extracted by quasi-fractionation, Sm/EuGd/Tb is separated by three-outlet fractional extraction, and Tb/DyHoY is separated by fractional extraction. composition. One extraction and separation process of the present invention simultaneously obtains two pure products of 4N-level samarium chloride aqueous solution and 4N-level terbium chloride aqueous solution, and has the advantages of low acid-base consumption, good process stability, high product qualification rate, high degree of greening, and high production efficiency. Features such as low cost. |
| priorityDate | 2018-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.