| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2d85e80d50edadc5f8e7fe1c05b34602 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E30-30 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G56-001
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G21C19-46 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21F9-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21F9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G56-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21C19-46 |
| filingDate |
1973-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1976-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e44f9f137d4889b35fe434b4b81c7189
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ff66a12b34f807061235336cacb25218
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_347e229b9aa84e771668b2e5a2d2ed45
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_efb148332531d9676ba9ab4762d7184d |
| publicationDate |
1976-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3962401-A |
| titleOfInvention |
Method of recovering neptunium from spent nuclear fuel |
| abstract |
An improved Purex wet recovery process including the step of extracting and separating uranium and plutonium simultaneously from the fission products in the presence of nitric acid and nitrous acid by using a multistage extractor unit having an extracting section and a washing section is provided for separating and recovering neptunium simultaneously with uranium and plutonium contained in spent nuclear fuel. The improved method comprises the steps of maintaining the nitrous acid concentration in said extracting section at a level suited for effecting oxidation of neptunium from (V) to (VI) valence, while lowering the nitrous acid concentration in said washing section so as to suppress reduction of neptunium from (VI) to (V) valence, and maintaining the nitric acid concentration in said washing section at a high level. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4229421-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4659551-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008224106-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4871478-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2551745-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9196389-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2014133616-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5500192-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5499276-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2403627-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3332954-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5585043-A |
| priorityDate |
1972-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |