http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103539207-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B17-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-06 |
| filingDate | 2013-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103539207-B |
| titleOfInvention | A kind of preparation method of red iron oxide |
| abstract | The present invention relates to a kind of preparation method of red iron oxide, particularly relate to a kind of method that ferrous disulfide reduction decomposition ferric sulfate prepares red iron oxide.The invention provides a kind of preparation method of red iron oxide, comprise the steps: a, by the vitriol of iron and ferrous disulfide in molar ratio 1.8 ~ 11:1 mix, obtain mixture; B, by mixture roasting 0.5 ~ 3h at 550 ~ 800 DEG C, obtain sulfurous gas and red iron oxide.The inventive method gained red iron oxide product purity reaches more than 80wt%, reaches GBT1863-2008 product requirement, can be used as pigment industry raw material, and product application is extensive, has good economy.It is simple that the present invention has technique, with short production cycle, is easy to control, and is convenient to the features such as popularization, is suitable for large-scale production. |
| priorityDate | 2013-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.