http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CZ-212293-A3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a22da5b7dd6ed60a21538e5edb23e051 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2523-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0259 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-198 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-145 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-198 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-225 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-60 |
| filingDate | 1993-01-27^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ad1f17cbd01879887c7d307b4c0d74f |
| publicationDate | 1994-04-13^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CZ-212293-A3 |
| titleOfInvention | Method of improving efficiency of vpo catalysts |
| abstract | An improvement in a process for the manufacture of maleic anhydride by catalytic oxidation of n-butane in the presence of trimethyl phosphate over a fixed bed vanadium phosphorus oxide catalyst in a tubular reactor. The trimethyl phosphate content of the gas entering the reactor within a range of between about (0.9) N and about (1.1) N where N is a normative concentration of trimethyl phosphate in ppm as determined by the following relationship: N+5xC4+6x(H2O-2.4)+0.75x(CONV-c)+(SV/(25xPin)) where: C4xthe mole % of n-butane in the gas entering the reactor; H2Oxthe mole % moisture in the gas entering the reactor; CONVx% butane conversion in the reactor; SVxgas hourly space velocity of the gas at the inlet of the reactor, reduced to one atmosphere pressure and 60 DEG F.; Pinxthe pressure at the inlet of the reactor (psig); and cx84-0.05[(SVxC4)/Pin]; Irrespective of the computation of N, the trimethyl phosphate content is at least about 1 ppm. |
| priorityDate | 1992-02-18^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Showing number of triples: 1 to 49 of 49.