http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S6081026-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5736c85c1929ce4e9775e836a65d6c05 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-11 |
| filingDate | 1983-10-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4c97292381e958f86b63d0dabdc3e02d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_611e5bd885b0e248f00187d0ad996683 |
| publicationDate | 1985-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S6081026-A |
| titleOfInvention | Manufacture of magnetic iron oxide containing cobalt |
| abstract | PURPOSE: To manufacture the magnetic iron oxide contg. cobalt which is excellent as a recording element of a magnetic recording medium by depositing a metallic compd. contg. Co on the surface of a magnetic iron oxide granule contg. ferrous iron, and then treating with steam. n CONSTITUTION: The granules of magnetic iron oxide such as γ-Fe 2 O 3 are dispersed in an aq. liquid medium, and 0.005W10% basing on the magnetic iron oxide of a reducing agent such as hydrazine and hydrazine hydrochloride are added to reduce the iron oxide into a magnetic iron oxide contg. ferrous iron which is filtered and washed with water to obtain a cake. The cake is again dispersed in the aq. liquid medium, and a cobalt salt such as cobalt sulfate and cobalt chloride, a ferrous salt such as ferrous chloride and ferrous sulfate, and an alkali such as NaOH are added to deposit a metallic compd. contg. cobalt on the surface of the magnetic iron oxide granule. A cake obtained by filtering said material is treated with steam at 60W250°C, and the magnetic iron oxide contg. Co having an excellent magnetic characteristic such as coercive force, etc. is manufactured. n COPYRIGHT: (C)1985,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S61252605-A |
| priorityDate | 1983-10-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.