http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-468467-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e792e505ebce5aef900a260291441855 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2523-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-252 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-8877 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-8876 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-887 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-313 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-31 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-00 |
| filingDate | 1978-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1979-01-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-468467-A1 |
| titleOfInvention | AN IMPROVED PROCEDURE FOR THE PREPARATION OF MALEI-CO ANHYDRIDE |
| abstract | An improved process for the preparation of maleic anhydride, which comprises contacting a mixture of an unsaturated organic compound selected from the group consisting of n-butylenes, 1,3-butadiene, crotonic aldehyde, and furan, and an oxygen-containing gas, with a catalyst, at a temperature comprised between approximately 0.07 and 35 kg / cm2, and wherein the molar ratio of oxygen to the organic compound is comprised between 2: 1 and 40: 1, the improvement comprising: using a catalyst as catalyst a catalyst of the formula AaEcMoeSbfOx in which A is at least one element selected from the group consisting of niobium, zirconium, titanium and tantalum; E is a member selected from the group consisting of hydrazine hydrate, a finely divided metal of molybdenum, tungsten, magnesium, aluminum, or nickel; and where a is a number from 0.01 to 6; c is a number from 0 to 0.2 and and f are numbers from 1 to 9; x is a number that satisfies the valence requirements of the other elements present; and wherein at least part of the molybdenum in the catalyst is maintained in a valence state of less than +6; said catalyst optionally containing one or more elements selected from the group consisting of lithium, silver, cerium, cadmium, cobalt, arsenic, silicon, zinc, germanium, bismuth, ruthenium, platinum and uranium. |
| priorityDate | 1977-04-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.