| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1acdb01ac5afc30bfc294f44c88c9538
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_160494dd050ef58528168a9b2f7373c9 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23G1-36 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D49-00 |
| filingDate |
1996-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2000-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2270731b6fb5bf2b4a0e569f0886cdc0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce121c9ab78d97a217a279e89d78e325
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dfed0d9bff364eafccbbf8754cb82080
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1c0fbab9c2f0211583ab5c4f73bbee10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d17c7865d6169aea2708260fafb121c9 |
| publicationDate |
2000-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-100262493-B1 |
| titleOfInvention |
Chlorine ion removal method in iron oxide powder |
| abstract |
A method for removing chlorine ions present in iron oxide powder by heat-treating the iron oxide powder prepared from hydrochloric acid pickling solution using a mixed gas of ammonia and hydrogen, wherein the iron oxide powder is heated to 350-450 ° C. under nitrogen atmosphere. A method of removing chlorine ions in iron oxide powder is then provided by replacing the nitrogen gas with a mixed gas of ammonia and hydrogen having an ammonia concentration of 20-40% by volume and maintaining the reaction temperature for up to 30 minutes.n n n According to the above method, chlorine ions can be removed while reducing the heat treatment temperature and time without affecting the powdery characteristics of iron oxide. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2014123284-A1 |
| priorityDate |
1996-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |