http://rdf.ncbi.nlm.nih.gov/pubchem/patent/NO-20004102-L
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9f66c116b33583a727509c5af6925fa6 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F27B7-26 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F27B7-162 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J6-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F27B7-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F27B7-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G23-0532 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F27B7-26 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F27B7-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09C1-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J6-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G23-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G23-053 |
| filingDate | 2000-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36ef2ac96be23d114d79607eecd37bf4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b3ff33f8b04b59081781e63d770375f |
| publicationDate | 2000-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | NO-20004102-L |
| titleOfInvention | Process and furnace for the preparation of TiO2 pigment according to the sulfate process |
| abstract | Process for preparing TiO 2 pigments by dissolving titanium raw materials with sulfuric acid, preparing a metal sulfate-containing titanyl sulfate solution, hydrolyzing the titanyl sulfate, separating the titanium dioxide hydrate from the metal sulfate-containing sulfuric acid by filtration, optionally bleaching the titanium dioxide hydrate in the bleaching of titanium dioxide hydrate with doping chemicals, and calcination of the titanium dioxide hydrate to TiO2 pigment, characterized in that as the starting material for TiO2 calcination, the titanium dioxide hydrate containing less than 3 kg of sulfate ions is used. After a treatment with alkali hydroxide and leaching of the alkali metal sulfate, the filter cake containing the titanium dioxide hydrate and doping chemicals is dried in a solid drier at 100 to 300 ° C and then the dried solid is calcined in a calcination oven at temperatures up to 1100 ° C. ) to TiO2 pigments and the exhaust gas is dust cleaned. The invention also includes a calcination furnace for the preparation of TiO 2 pigments from dried sulfate-poor or sulfate-free titanium dioxide hydrate, in the form of a rotary kiln having a ratio: diameter in the range of 5 to 10. |
| priorityDate | 1998-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.