http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102850306-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ddac65606de3b966e6f33acf1f1407c8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d7344f7b426556ad3a04cc689dc3b686 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-60 |
| filingDate | 2011-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8eb88f710a5d081351cbc50dd12d7614 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3c4a876b4b77bba2a4f3fd8aa5b9bb2a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e28004761a00ef1fe0cec415996eeaf0 |
| publicationDate | 2014-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102850306-B |
| titleOfInvention | Production method of maleic anhydride |
| abstract | The inventive production method of maleic anhydride comprises contacting a mixed gas (containing benzene and oxidizing gas) with catalyst bed layers A and B. The catalyst bed layers contain vanadium-containing compound, molybdenum-containing compound, sodium-containing compound, phosphorus-containing compound, and nickel-containing compound. Molar ratio of molybdenum-containing compound to vanadium-containing compound of the catalyst bed layer B is 0.5-0.9 of that of the catalyst bed layer A. Molar ratio of phosphorus-containing compound to vanadium-containing compound of the catalyst bed layer B is 0.4-0.9 of that of the catalyst bed layer A. Molar ratio of nickel-containing compound to vanadium-containing compound of the catalyst bed layer B is 0.4-0.8 of that of the catalyst bed layer A. The invention can increase benzene concentration in the mixed gas material, and sufficiently convert benzene to improve final maleic anhydride yield. |
| priorityDate | 2011-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 90.