http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2580414-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a641d3dae127052633e31025fb6d46d1 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A62D3-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A62D3-40 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B11-048 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B7-009 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B1-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B09B3-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B09B3-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G55-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B09B3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G55-00 |
| filingDate | 2013-03-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b7d17ee33f9a9554c401a1a50538b6a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e4f2ffd23126d12475da0cad2d0bb3a2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cfe690eebd38f57ff6c80d1dfceb50f2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_07623e2bca19518da661d3ba00bf167f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f9402c010a3d4af7c69f733bec8f104e |
| publicationDate | 2016-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2580414-C1 |
| titleOfInvention | Method for producing solid ruthenium nitrosyl nitrate using spent catalyst containing ruthenium |
| abstract | FIELD: metallurgy. n SUBSTANCE: invention relates to platinum group metal recycling method. Obtaining of solid ruthenium nitrosilnitrate includes several stages. Drying, calcination for 2-4 hours at temperature of 300-500 °C of used catalyst containing ruthenium is performed, and cooling down to room temperature to produce black solid product. Solid product is milled to produce powder. Powder is introduced into fluid-bed reactor. Reactor aeration with nitrogen or inert gas for 0.5-2 hours, introduction of hydrogen and heating reactor to temperature of 100-600 °C is performed to carry out reduction reaction with formation of metallic ruthenium. Ruthenium metal oxidation is carried out with gaseous mixture of ozone and air at temperature of 600-650 °C to produce gaseous ruthenium tetroxide. Ruthenium tetroxide is introduced in three-stage absorption installation containing solution of nitric acid. Ruthenium nitrate acid solution is formed. Solution is added with sodium nitrite, mixed and heated with reflux condenser with microboiling. Ruthenium nitrosilnitrate solution is formed. Ruthenium nitrosilnitrate solution extraction using anhydrous ether, collecting and evaporation of extraction solution are performed. Solid ruthenium nitrosilnitrate is formed. n EFFECT: efficient recycling of ruthenium resources, high output and purity of solid ruthenium nitrosilnitrate is ensured. n 10 cl, 1 dwg |
| priorityDate | 2012-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 66.