http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110306046-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/C22B3-3844 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B59-00 |
| filingDate | 2019-07-17^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-01-01^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-01-01^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110306046-B |
| titleOfInvention | Method for separating light rare earth mixture in bastnaesite |
| abstract | The invention relates to a method for separating a light rare earth mixture in bastnaesite, which takes a light rare earth chloride aqueous solution obtained by grouping neodymium/samarium in the bastnaesite as a feed liquid and P507 as an extracting agent. The device consists of four fractionation and extraction systems, namely a LaCe/LaCe/CePrNd/PrNd four-outlet fractionation and extraction separation system, a La/Ce two-feed-port fractionation and extraction separation system, a Ce/PrNd fractionation and extraction separation system and a Pr/Nd two-feed-port fractionation and extraction separation system. Directly obtain four separation products of 5N-level lanthanum chloride, 5N-level cerium chloride, 3N-level praseodymium chloride and 4N-level neodymium chloride. The method has the advantages of high purity of target separation products, high yield of rare earth elements, low acid and alkali consumption, short process flow, low separation cost and the like. |
| priorityDate | 2019-07-17^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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