| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ecaddd5a69b1dda3d7a1479d8f6af1d7 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-70652
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-70647
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-706
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-06 |
| filingDate |
1976-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1977-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_49d5f9114e56b4b70c4270825bbe26af |
| publicationDate |
1977-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4054643-A |
| titleOfInvention |
Manufacture of γ-Fe2 O3 |
| abstract |
A process for the preparation of essentially pure ferromagnetic gamma -Fe2O3 by bringing a solution of a water soluble iron salt to a pH between about 8.0 and 11.0 to obtain a suspension of iron hydroxide, passing air through the iron hydroxide suspension at a temperature of from about 25 DEG to about 80 DEG C., and separating said pure gamma -Fe2O3. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3004081-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2180371-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102285692-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102285692-A |
| priorityDate |
1976-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |