http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2130428-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_52babe94974c7ca30ed49631d2d84b13 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G23-047 |
| filingDate | 1997-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1999-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ae87bad7be6ebcbaec09634db596306a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2555358b224b9641f877a4ae36ca4a38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d8432fed3a08dc7503fd604a3fb5e72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_07c8e3c71c42fedc78bad8739bece7f4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_51f2cd2d6277c03307fddf9db5f4c16d |
| publicationDate | 1999-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2130428-C1 |
| titleOfInvention | Method of preparing titanium dioxide |
| abstract | FIELD: chemical industry, more particularly preparation of titanium dioxide. SUBSTANCE: titanium fluoroammonium salt is dissolved in 10-30% hydrogen peroxide. H 2 O 2 :Ti molar ratio is 2-5. Alkaline treatment is carried out with ammonia solution. NH 3 :Ti molar ratio is 2-4.5. The resulting precipitate is subjected to pyrohydrolysis at 20-1000 C. Titanium fluoro ammonium salt is dissolved in the presence of 1-3 wt % alkaline vanadates, alkali metal bichromates, zinc compounds, magnesium, calcium, aluminium and antimony salts. EFFECT: higher purity, greater whiteness and dispersity of titanium dioxide. 5 cl, 3 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2593303-C1 |
| priorityDate | 1997-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.