| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5128cfc84a0fb189fceb3cd240c44493 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-35
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-39
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-88
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-22 |
| filingDate |
1996-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f576b1b407313624449460b9114fbadd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f84a78586a40ba7441738de2366e2908 |
| publicationDate |
1997-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H09323950-A |
| titleOfInvention |
Method for producing methacrolein |
| abstract |
(57) Abstract: At least one selected from isobutylene and / or t-butyl alcohol is subjected to gas-phase catalytic oxidation in a fixed-bed multitubular reactor using a gas containing molecular oxygen to enhance methacrolein. It is to provide a method for producing in yield. SOLUTION: In a plurality of reaction zones provided by dividing the catalyst layer in each reaction tube into three or more layers in the tube axis direction, per unit volume of the catalyst filled in the first layer of the raw material gas inlet part The activity should be higher than the activity per unit volume packed in the reaction zone of the second layer, and the activity per unit volume of the catalyst packed in the third layer or later should be higher than the activity per unit volume of the second layer. And a method for producing methacrolein. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7384607-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4762899-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6723171-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-03055835-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-03047746-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EA-008097-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7388108-B2 |
| priorityDate |
1996-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |