http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SU-816391-A3
Outgoing Links
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|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e70c0aeade92d7571d955d3b90ea06e |
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| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-89 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-63 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-945 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-56 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J35-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10K1-34 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-94 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-89 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-63 |
| filingDate | 1975-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1981-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_87f160d1251b4766e0748c2744239efb |
| publicationDate | 1981-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SU-816391-A3 |
| titleOfInvention | Catalytic composition for purifying exhaust gases of internal combustion engines |
| abstract | 1511333 Perovskite catalysts E I DU PONT DE NEMOURS & CO 25 April 1975 [25 April 1974 (2)] 17279/75 Heading C1A (Also in Division B1] In a Perovskite catalyst of formula ABO 3 , the Type A cation sites are substantially fully occupied by ions of one metal having an atomic number of 11-51,56-71 or 89-103; a portion of the Type B cation sites are occupied by ions of at least one Platinum group metal selected from Ru, Os, Rh, Ir, Pd and Pt, and the remaining Type B sites are occupied by the ions of at least one non-platinum group metal having an ionic radius between 0À4 and 1À4 Angstroms, and wherein the Type B sites exhibit one of the following characteristics: (A) at least 5% of the non-Pt group sites of Type B are occupied by ions of a metal of variable valence in a first valence and at least 5% of the non- Pt group sites of Type B are occupied by ions of the same metal in a second valence; (B) substantially all of the non-Pt group Type B site metals are present in a single valence and a major portion of the non-Pt group Type B site metals are present in a valence of 3: and provided that when the Type A metal is Ba and the Pt group metal is Pt, no more than 80% of the Type B sites are occupied by Ti. Examples disclose the use of Ba, K, La, Nd and Sr in Type A sites and Co, Cr, Cu. Fe, Mn, Mo, Nb, Ni, Ta, Ti, V and W in the non Pt-group Type B sites, in catalysts supported on alumina substrates in the oxidation of CO and propane and the reduction of NO x in nitrogen streams. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2467794-C1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9174170-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9308498-B2 |
| priorityDate | 1974-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 93.