| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1b363cfe6c6c7e5d676f1da65cb5731b |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-215 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-34 |
| filingDate |
2006-04-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5fd5fdf69c627170a6eaba6d77d1235f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e1189dcfdf8ad7617d7e57841ed4c4a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6a3a3f8e94fcd5752da93e85df5dc436
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e5f5e04a922d93ffe71e51a59998b6e |
| publicationDate |
2007-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2007244332-A1 |
| titleOfInvention |
Reduction of acrylic acid in the production of maleic anhydride |
| abstract |
An improved process for the production of maleic anhydride by the catalytic oxidation of n-butane. Maleic anhydride is produced by reacting n-butane gas with oxygen gas or an oxygen-containing gas, in the presence of a vanadium phosphorus oxide catalyst. A trialkyl phosphite or trialkyl phosphate component is continuously added to the gases in an amount of from about 0.5 ppm to about 4 ppm by weight of elemental phosphorus in the trialkyl phosphate or trialkyl phosphite component. Heat is applied to the gases at a temperature of from about 400° C. to about 440° C. while maintaining a maximum temperature of gases present in the reaction of about 480° C. A simultaneous conversion of n-butane to maleic anhydride of about 84% or more and a conversion of n-butane to by-product acrylic acid of about 1.5% or less is achieved. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112337493-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102019127786-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104356100-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3771490-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2366843-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/IT-201900013167-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11318434-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011124733-A1 |
| priorityDate |
2006-04-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |