http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009537594-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-89 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-198 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-89 |
| filingDate | 2007-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2009-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2009537594-A |
| titleOfInvention | Production of phthalic anhydride by gas phase oxidation of o-xylol |
| abstract | A gaseous mixture of o-xylol and oxygen-containing gas is passed in the main reactor to at least two temperature-controllable reaction zones that are separate from each other, and unreacted o-xylol, an under-phthalic anhydride oxidation product, and Phthalic anhydride is produced by catalytic gas phase oxidation of o-xylol by reacting with a gaseous intermediate reaction product containing phthalic anhydride and introducing the intermediate reaction product into the back reactor. A method is described in which the temperature of the reaction zone in the main reactor is adjusted so that the concentration of unreacted o-xylol in the intermediate reaction product is at least 0.5% by weight. The This method allows an increase in the overall yield of phthalic anhydride without substantial degradation of product quality. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009262135-A |
| priorityDate | 2006-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.