http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1152565-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7f33c35305e20be4c28b7553b465ef87 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B11-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-00 |
| filingDate | 1968-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2f81bc7f0257064d8c5909a47ded6879 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53accdea832712e1b647d06e152ef56b |
| publicationDate | 1969-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1152565-A |
| titleOfInvention | Recovery and Purification of Osmium. |
| abstract | 1,152,565. Sodium osmate and perosmate; potassium osmate. INTERNATIONAL NICKEL CO. OF CANADA Ltd. 19 Feb., 1968 [21 Feb., 1967], No. 8023/68. Heading C1A. [Also in Division C7] A slurry of sodium osmate is produced by gradually heating an Os-containing material to 1200-2000‹ F. in an atmosphere containing free oxygen (e.g. air), absorbing the volatilized OsO 4 in an aqueous solution and precipitating an Os-containing solid (e.g. absorbing in NaOH solution and precipitating with SO 2 and/or H 2 S or concurrently absorbing and precipitating with a solution of SeO 2 or SO 2 ), separating the solids and slurrying them, together with any Os-containing dust from the OsO 4 volatilization, in water to which is added H 2 SO 4 . The slurry is then heated, air is bubbled through to remove S as SO 2 , an oxidizing agent (e.g. NaClO 3 , NaBrO 3 or HNO 3 ) is then added with heating to volatilize OsO 4 which is collected in aqueous NaOH to form sodium perosmate which is reduced with a water-soluble organic reducing agent, e.g. methanol or ethanol, to form the osmate and precipitate any Ru present. K 2 OsO 4 .2H 2 O may be precipitated as violet crystals from the solution by addition of an excess of saturated aqueous KOH. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9284623-B2 |
| priorityDate | 1967-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.