| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_88fc58d83be1ef1fb4d0737b6ef30bc6 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-1066
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-1061
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-1014 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-8993
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-8628
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-652
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J35-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-94
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-89
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-26 |
| filingDate |
1976-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1978-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e8124d3d2e40bc426b3b8ef0d5556f0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32afdd5fd877ed0f1af62de509c3d3d1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fa300745e2e940e6f06b6c2c445a9cde |
| publicationDate |
1978-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4071472-A |
| titleOfInvention |
Catalyst for the purification of effluent gases containing oxides of nitrogen as impurity |
| abstract |
The invention relates to the purification of gaseous effluents containing ides of nitrogen by reduction of said oxides in the presence of a catalyst at raised temperatures. n The catalysts used in this process contain iron as a major constituent, and may contain chromium or vanadium: these constitute 96 to 99.5% of the weight of the catalyst. Also present as promoters, in a total amount of 4.0 to 0.5% by weight of the catalyst, are one or more rare earth metal oxides and a trace quantity of a platinum metal. The catalyst is prepared by a method which ensures a specific surface of 20-100 m 2 /g and pores having a maximum dimension between 100 and 5000 A. n Such a catalyst is particularly suitable for removing residual oxides of nitrogen from the gaseous effluent obtained in the production of nitric acid by the oxidation of ammonia. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11241683-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2018093261-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4228039-A |
| priorityDate |
1975-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |