http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109277099-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2258-012 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02T10-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2257-404 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02A50-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2523-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-0201 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-9413 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-94 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J35-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-30 |
| filingDate | 2018-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109277099-B |
| titleOfInvention | High-temperature hydrothermal stable diesel vehicle tail gas purification SCR catalyst and preparation method thereof |
| abstract | The invention provides a diesel vehicle tail gas purification SCR catalyst with high-temperature hydrothermal stability, and the chemical formula of the catalyst is WO 3 /Al 2 O 3 @Ce x Zr 1‑ x O 2 Supported by tungsten and having the general formula Al 2 O 3 @Ce x Zr 1‑x O 2 On a composite oxide of (a), wherein: 0<x<1，Al 2 O 3 In Al 2 O 3 @Ce x Zr 1‑ x O 2 The mass fraction of the composite oxide is 6-12%, WO 3 The mass fraction in the catalyst is more than 0 and less than or equal to 15 percent. The invention provides a preparation method of the diesel vehicle tail gas purification SCR catalyst with high-temperature hydrothermal stability, which prepares soluble cerium salt, zirconium salt and aluminum salt into salt solution, and prepares composite oxide Al by precipitation with corresponding alkali solution 2 O 3 @Ce x Zr 1‑x O 2 And then loading tungsten. The catalyst has high hydrothermal stability, prolongs the service life and meets the requirement of the diesel vehicle for hundreds of thousands of driving miles. |
| priorityDate | 2018-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 69.