http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1161425-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cc8b77ff86a2dfdbca33e7de285d81bf |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-02 |
| filingDate | 1966-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37ce905471327305b7294a5b82a5fc3f |
| publicationDate | 1969-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1161425-A |
| titleOfInvention | Method for Manufacture of High Purity Iron Oxide Powder |
| abstract | 1,161,425. High purity iron oxide powder. YAWATA IRON & STEEL CO. Ltd. 22 Aug., 1966, No. 37499/66. Heading C1A. High purity iron oxide powder is produced by decomposing an organic # complex of formula (where X is O or N, and R 1 -R 3 are selected from H or halogen, aliphatic, alicyclic or aromatic hydrocarbon residues), by reaction with a hydrazine derivative, thus obtaining a powdered oxide, consisting mainly of magnetite. In the example, electrolytically pure iron oxide is dissolved in hydrochloric acid, extracted in methyl isobutyl ketone (MIBK), and the layer of MIBK extracted reversably in pure water to give an aqueous solution of ferric chloride. Acetylacetone is added to this aqueous chloride solution, thus forming acetyl acetone iron chelate, which is then purified by sublimation. The purified chelate is decomposed by reaction with hydrazine hydrate, thus yielding high purity iron oxide powder. |
| priorityDate | 1966-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.