http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H09188520-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8fb9f44db08d1c42a53f3d28eaae416f |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-06 |
| filingDate | 1996-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eff960416943699ccd593f1f70a136ac http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7afb6f1b30d9985f1372c9e930ef1372 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_114ce940c632b6616653de1a72bb38f6 |
| publicationDate | 1997-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H09188520-A |
| titleOfInvention | Method for producing spindle-shaped goethite |
| abstract | (57) Abstract: When a suspension containing FeCO 3 is oxidized with an oxygen-containing gas to produce spindle-shaped goethite, the suspension is subjected to an oxidation reaction at an oxidation rate (r1). After starting, when the oxidation rate of ferrous iron in the suspension is between 4 and 20%, A method for producing spindle-shaped goethite, which comprises reducing the oxidation rate to 20 to 80% of (r1). [Effect] According to the production method of the present invention, spindle-shaped goethite particles having a uniform particle size distribution and a high axial ratio, which are suitable as a starting material for producing magnetic particle powders for magnetic recording, are industrially advantageously produced. It is possible to |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2006137640-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007223833-A |
| priorityDate | 1996-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.