http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104120258-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B59-00 |
| filingDate | 2014-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104120258-B |
| titleOfInvention | A kind of method that separates LREE without saponifiable extraction |
| abstract | The invention discloses a kind of method that separates LREE without saponifiable extraction, be by the compound extractant of acidic organophosphorus extractant, basic amine kind of extractants and solvent naphtha composition and phosphoric acid ester, organic alcohols equal solvent in 30-70 DEG C be uniformly mixed after, light rare earth chloride feed liquid is carried out to extract and separate, pass through again water washing and hydrochloric acid back extraction, finally can realize the separation of La, Ce, Pr, Nd, the mixing organic phase after back extraction is returned to extraction tank and is recycled. The present invention has carried out pretreatment to the mixing organic phase by compound extractant and solvent composition, the defect such as overcome that compound extractant system viscosity is large, poor fluidity and easily emulsification, phase-splitting time are long; The inventive method is without acidic organophosphorus extractant is carried out to saponification, the consumption of extraction process non-alkali liquor, non-wastewater discharge are realized, but reach the separating power of Saponified Extractants system, and the extraction progression more required than Saponified Extractants system reduces, and is a kind of rare earths separation technique of economical and efficient. |
| priorityDate | 2014-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.