| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e7b59574be3a6f45c6ef63a1ef657320 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-4691
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G21F9-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-467 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-467
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21F9-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21F9-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21F9-06 |
| filingDate |
1988-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7538c8fd294cf5d2f661bf0ef6a8dd4f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b86d22a402dcb05777495b3ca012e107 |
| publicationDate |
1989-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0303401-A2 |
| titleOfInvention |
Liquid treatment process |
| abstract |
Ruthenium in aqueous solution in a first, oxidisable oxidation state (e.g. as RuNO(NO₃)₃) is converted to an insoluble form in a second, different oxidation state (e.g. as RuO₂.nH₂O) by establishing an electrochemical cell wherein the solution is the electrolyte and electrochemically oxidising and reducing the ruthenium in the cell. The insoluble form may be filtered from the liquid. The ruthenium treatment may be a stage in the removal of radioactive species from liquids such is in the treatment of medium and low level activity liquid waste streams, wherein actinides are precipitated and filtered off either before or after ruthenium treatment. Subsequently, residual activity may be removed from the stream by either or both of (a) absorption, followed by filtration and electro-osmotic dewatering and (b) electrochemical ion exchange. Filtration fluxes may be maintained by direct electrochemical membrane cleaning. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2306507-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2699318-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2772510-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2306507-A |
| priorityDate |
1987-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |