http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102416333-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_979c1df5ac09d5d5e33213595b253952 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-86 |
| filingDate | 2011-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74e954e069b38f43330db94ea079137b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e873d66d5c29e490d6c3163bfc9bd357 |
| publicationDate | 2013-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102416333-B |
| titleOfInvention | Special tungsten-containing nano titanium dioxide for flue gas denitration catalyst and manufacturing method thereof |
| abstract | The invention provides high-performance special tungsten-containing nano titanium dioxide for a flue gas denitration catalyst and a preparation method thereof. The nano titanium dioxide comprises the following ingredients by mass percentage: 85-96.2 percent of TiO2, 3-10 percent of WO3 and 0.8-5 percent of SO42-. The preparation method comprises: using metatitanic acid prepared in a sulfuric acid method as a raw material, adding a pore-forming agent, mixing, adding precursors of ammonium paratungstate and sulfate radical, mixing, and delivering the mixture to a rotary kiln for drying and roasting to obtain the nano titanium dioxide with a large specific surface and high surface acidity. Compared with the prior art, the invention has the following advantage that: (1) since the sulfuric acid is added, the surface acidity of TiO2 is significantly enhanced, and the denitration activity of the final catalyst is improved; (2) since the ammonium paratungstate is added into the metatitanic acid solution, the performance of titanium dioxide is improved, the process is simple, and the operation is facilitated; (3) the procedures are simple, the drying and roasting are completed in the rotary kiln, the number of devices is reduced, and the energy consumption is decreased; and (4) the specific surface area of the titanium dioxide is increased through the pore-forming agent, and the applied pore-forming agent is inexpensive and environmentally friendly. |
| priorityDate | 2011-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.