http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109012703-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2258-0283 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-8628 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-56 |
| filingDate | 2018-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109012703-B |
| titleOfInvention | Method for preparing iron-sulfur-titanium-based high-temperature NH3-SCR denitration catalyst |
| abstract | The invention discloses a method for preparing iron-sulfur-titanium-based NH by using acidic iron-titanium sulfate solution through high-temperature pyrohydrolysis 3 -a method of SCR flue gas denitration catalyst. The preparation method of the iron-sulfur-titanium-based catalyst comprises the following steps: firstly, preparing titanium iron liquid with different concentrations by using titanyl sulfate and ferric sulfate; secondly, hydrolyzing and precipitating the ferrotitanium liquid for a certain time at a certain temperature and pH; finally, the hydrolysate is filtered, dried and roasted. The invention can obtain the high-activity iron-sulfur-titanium-based catalyst by regulating and controlling the preparation conditions. The catalyst is represented by anatase type TiO 2 The crystal structure of (1) and the iron exists in a chemical bond structure form of Fe-O-Ti, and the sulfur element has a +6 valence. In the activity test, the space velocity is 60000h ‑1 At the temperature of 325-500 ℃, the NO conversion rate can reach more than 90 percent, and N is 2 The selectivity can reach more than 98 percent, and the catalyst has great potential to replace the V-W (Mo) -Ti catalytic system widely used at present and is applied to denitration of fixed sources represented by coal-fired industrial power plants. |
| priorityDate | 2018-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.