http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102390870-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_743eb25b02b1b0d81a0738b2579ad6be |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-06 |
| filingDate | 2011-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_72efa5d6ec13340f66a2b439fe2cfec1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b57397d814eee942a0f98398d7d105b0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e2606e8145b0eba722317e1fa087403 |
| publicationDate | 2013-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102390870-B |
| titleOfInvention | Preparation method of superfine iron oxide red pigment with high glossiness and pure red tone |
| abstract | The invention mainly discloses a preparation method of a superfine iron oxide red pigment with high glossiness and pure red tone. The preparation method comprises the following steps of: preparing a solution from refined ferrous sulfate, neutralizing the solution with a mixed alkaline solution, heating to 40-50 DEG C, and oxidizing to obtain special seed crystals; carrying out secondary oxidization under the condition of existence of seed crystals, depositing generated iron sesquioxide on special crystal nucleus, neutralizing diluted ammonia water with the concentration of about 8 percent by using the generated sulfuric acid, controlling PH of the system to 3.0-5.0, continuously dropwise adding the ferrous sulfate and the diluted ammonia water, and gradually growing the crystal nucleus to form the orange red iron oxide pigment; and pulping an organic red iron oxide filter cake, and calcining at high temperature to obtain the superfine iron oxide red pigment with high glossiness and pure red tone. The preparation method disclosed by the invention has the advantages that: the superfine iron oxide red pigment with high glossiness and pure red tone is prepared by utilizing the preparation method disclosed by the invention; and the preparation method is realized by using a method of reducing the influence degree to the environment and has favorable environment-friendly effect. |
| priorityDate | 2011-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.