http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2713232-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ab5e449f3827c2c1577f23a0d26f1189 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G21F9-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21F9-28 |
| filingDate | 2019-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a92a54852e0b3c609511971d80c0db70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a7dd8c56772be1c7122e43a4613cccca http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7d8117d245e261c5102136ab4c66c915 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7c3ffa7cef6d6c6a6c8b47d4821dcc5 |
| publicationDate | 2020-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2713232-C1 |
| titleOfInvention | Method for decontamination of spent ion-exchange resins contaminated with cesium and cobalt radionuclides |
| abstract | FIELD: nuclear power engineering.SUBSTANCE: method for decontamination of spent ion-exchange resin contaminated with radionuclides involves treatment with highly alkaline pH≥13 decontaminating solution containing 1–3 mol/l sodium ions, cleaning the deactivating solution from cesium radionuclides on cation resin from resorcinol-formaldehyde resin and purification from cobalt radionuclides by complex formation with subsequent hydrothermal treatment. Spent ion-exchange resin is further treated with an acid deactivating solution containing a salt of ethylenediaminotetraacetic acid and amphoteric metal cations. Acid deactivating solution is passed through a resorcinol-formaldehyde resin for elution of cesium. Prior to hydrothermal cleaning of cobalt radionuclides, cobalt radionuclides are purified from selective ferrocyanide sorbent.EFFECT: invention provides high degree of decontamination of spent ion-exchange resins and reduces volumes of secondary radioactive wastes.1 cl, 1 dwg, 2 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2748055-C1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2755362-C1 |
| priorityDate | 2019-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.