| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cef5045e7639c28010832b4eae012eb1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-088
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-087
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-405
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2251-2062
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2229-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2255-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2229-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2229-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-505
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-185 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-072
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-061
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-0246
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-9418
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-8628
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-7615
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-7057 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J35-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-40 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-90
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/C01B39-46 |
| filingDate |
2001-10-31^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e5f725213b56883c31f4ba844857c46f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69e98e199078876d62209f46444aa907
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f57b40f9375bc9a4adef37fb108ddc60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_27d4a29eed253558be0c0b50d278d6f0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2cb19b09eac5e25a7aa0878e5d98fccf |
| publicationDate |
2003-09-24^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1345691-A2 |
| titleOfInvention |
Hydrothermally stable metal promoted zeolite beta for nox reduction |
| abstract |
The present invention is directed to a metal-promoted zeolite beta catalyst useful in the selective catalytic reduction of nitrogen oxides with ammonia in which the zeolite beta is pre-treated so as to provide the zeolite with improved hydrothermal stability. The stabilized beta zeolite is provided by incorporating into the zeolite structure non-framework aluminum oxide chains. The aluminum oxide chains can be incorporated into the zeolite structure by a unique steaming regimen or by treatment with rare earth metals, such as cerium. The treatment process is unlike well-known methods of dealuminizing zeolites for the purpose of increasing the silica to alumina ratio. In the present invention, the non-framework aluminum oxide is characterized by FT-IR by a peak at 3781+2 cm-1, which when present, stabilizes the zeolite against further dealumination such as under oxidizing and harsh hydrothermal conditions. |
| priorityDate |
2000-11-15^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |