| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ae35ce99d59cd66f74597ed72e6f19ec |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-82 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-70689
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-706
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21B15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-08 |
| filingDate |
1975-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1979-11-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b786f5b941b38ea239e7bf08fd210932
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a05c41d177318fc159a05a8890481e7f |
| publicationDate |
1979-11-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-1066483-A |
| titleOfInvention |
Process for production of finely divided magnetite particles |
| abstract |
A B S T R A C T Finely divided particles of magnetite are produced by mixing solutions containing ferrous ions, ferric ions and free ammonia in proportions necessary to neutralize any free acid. The mixture is maintained at a temperature of at least 50°C. Magnetite particles precipitate from the mixture and may be recovered by conventional liquid-solid separation procedures. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6936340-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6777072-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6835450-B2 |
| priorityDate |
1975-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |