http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S62283814-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_630b360599ea5cf4b5bcbc0c6c0a3e2d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B59-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J47-00 |
| filingDate | 1986-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1595b458ecb9e14e171c7d31017e02f5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4c09ad4302c371902d6d6a80cead1688 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e5719cd6f5a2813d4de90df9671fac01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e45d72af65885af65e40111401eb5f1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_adf5feef68a8d3f89ff823fd824aab39 |
| publicationDate | 1987-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S62283814-A |
| titleOfInvention | Separation of europium |
| abstract | PURPOSE: To stably separate high purity Eu in a high yield by bringing a cation exchange soln. contg. extracted zinc into contact with an aqueous inorg. acid soln. contg. bivalent Eu and other tervalent rare earth element to separate an Eu-rich aqueous phase and by oxidizing the aqueous phase so as to take out the Eu as tervalent Eu. n CONSTITUTION: A SOLVESSO(R) soln. 11 contg. naphthenic acid and an aqueous ammonia soln. 12 are fed to a zinc extractor 1 and brought into countercurrent contact with water 13 contg. zinc to obtain a cation exchange soln. contg. zinc and this soln. is degassed with gaseous N 2 . An aqueous soln. contg. tervalent Eu and tervalent Sm is degassed with gaseous N 2 and reduced with zinc powder. The resulting aqueous inorg. acid soln. contg. bivalent Eu, tervalent Sm and zinc is introduced into a separator 2 through a zinc recovering unit 3. In the separator 2, the cation exchange soln. contg. zinc is brought into contact with the aqueous inorg. acid soln. to take out an Eu-rich aqueous phase 18 and this aqueous phase 18 is air-oxidized in a reactor 5, introduced into a zinc separator 6 and brought into countercurrent contact with a cation exchange soln. to obtain a tervalent Eu-rich aqueous phase 27. This aqueous phase 27 is introduced into an Eu back-extractor 7. Thus, Eu can be separated efficiently and stably. n COPYRIGHT: (C)1987,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2001151743-A |
| priorityDate | 1986-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.