| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bb4ee28d43b5e8d4a3c5141fa9bcfeb0 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B32-907
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-70668 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-706
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B31-30 |
| filingDate |
1984-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c67887cf004e09f1285a5787a0386964
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f70b366b16e923180ce1f72a73e53824
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_91646a45b6b4bd872e5037c625d02e05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a1e0aa4714f043d2834b8dabd683af45
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f3a6c5ed628f310e80dd7805ff51e944 |
| publicationDate |
1986-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-S61106409-A |
| titleOfInvention |
Preparation of acicular particle containing iron carbide |
| abstract |
PURPOSE: To prepare acicular particles contg. a large amt. of iron carbide having superior magnetic characteristics from easily available γ-Fe 2 O 3 by allowing CO or a mixture of CO with H 2 to contact with γ-Fe 2 O 3 treated with alkali or coated with Co. n CONSTITUTION: γ-Fe 2 O 3 is allowed to contact with aq. NaOH, etc. to execute alkali treatment and then dried. Or, γ-Fe 2 O 3 is allowed to contact with alkaline aq. soln. of Co salt and then dried to deposit the Co salt thereon. Then, the treated γ-Fe 2 O 3 is allowed to contact with CO or CO diluted with H 2 to ca. 1/0.05W1/5 volume ratio of CO to H 2 at pref. 250W400°C. Preferred γ-Fe 2 O 3 is one having ca. 3W20 mean axial ratio and ca. 0.1W2μm mean particle size (major axis). Thus, acicular particles contg. iron carbide having superior magnetic characteristics are obtd. n COPYRIGHT: (C)1986,JPO&Japio |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0464745-A2 |
| priorityDate |
1984-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |