http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H1072389-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7f9af914ed2fb00cd4f1b8b1a28964e4 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-33 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J35-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-35 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/B01J27-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C27-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C27-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-05 |
| filingDate | 1997-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f1bcd6a541bc53cc915ff2a46001215 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eb7c75657a48aaf0e6f729161cc43b91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a935b64cd08c213ee18c4ed9026d5792 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_38dbb420532330a9630af92413623952 |
| publicationDate | 1998-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H1072389-A |
| titleOfInvention | Method for producing methacrolein and methacrylic acid |
| abstract | (57) [Summary] (Modifications) [PROBLEMS] To produce methacrolein and methacrylic acid by subjecting isobutylene to gas-phase catalytic oxidation, suppress the heat storage in the hot spot portion in the catalyst layer, improve the yield, and improve the catalyst. Prevent deterioration and use stably for a long time. SOLUTION: a) As a catalyst, a general formula (I): Mo a W b Bi c Fe d A e B f C g D h E i O x (A is at least one element of Ni and Co, B is one or more elements of the alkali metal and Tl, C is the alkaline earth metal 1 The above elements of the species, D is P, Te, Sb, Sn, Ce, Pb, Nb, Mn, As And one or more elements of Zn, E represents one or more elements from Si, Al, Ti and Zr, a, b, c, d, e, f, g, h, i and x are b = 0 to 10, c = 0.1 to 10, and d = 0.1 to 2 when a = 12. 0, e = 2 to 20, f = 0 to 10, g = 0.001 to 1 0, h = 0 to 4, i = 0 to 30, x = a value determined by the oxidation state of each element), and b) the catalyst layer in each reaction tube is formed into two or more layers in the tube axis direction. C) a plurality of catalysts having different activities, prepared by changing the type and / or amount of the group C element of the catalyst of the general formula I, into a plurality of reaction zones provided separately, from the inlet to the outlet of the raw material gas; Filling to increase the activity toward. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4762899-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7297814-B2 |
| priorityDate | 1997-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 119.