In a process for producing methacrolein by the gas phase catalytic reaction of isobutene with molecular oxygen in the presence of a catalyst consisting of Mo, Bi, Fe, Co, Sb and O, the catalyst is prepared by using as the Sb component, a mixture of a trivalent Sb compound and a pentavalent Sb compou
In a process for producing methacrolein by the gas phase catalytic reaction of isobutene with molecular oxygen in the presence of a catalyst consisting of Mo, Bi, Fe, Co, Sb and O, the catalyst is prepared by using as the Sb component, a mixture of a trivalent Sb compound and a pentavalent Sb compound. When said catalyst is used, the reaction can be continued over a long period of time without formation of complete oxidation products, i.e. CO and CO2, and, even when the starting isobutene contains n-butene, the reaction proceeds smoothly to make it possible to produce methacrolein and 1,3-butadiene simultaneously.
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A process for producing methacrolein, or methacrolein and 1,3-butadiene, by the gas phase catalytic reaction of isobutene, or isobutene and n-butene, with molecular oxygen or a molecular oxygen-containing gas in the presence of a catalyst having a composition of the formula, Mo10Bi0.18Fe0.110Co0.012
A process for producing methacrolein, or methacrolein and 1,3-butadiene, by the gas phase catalytic reaction of isobutene, or isobutene and n-butene, with molecular oxygen or a molecular oxygen-containing gas in the presence of a catalyst having a composition of the formula, Mo10Bi0.18Fe0.110Co0.0120Sb0.015On wherein n is a number defined by the valences of the respective catalyst component elements said number being from 35 to 90, at a temperature of 350°to 550°C., characterized in that the catalyst is prepared by using, as the Sb component, a mixture of a trivalent Sb compound and a pentavalent Sb compound in an antimony atomic ratio of the former to the latter of 0.1/0.9 to 0.95/0.05, wherein the trivalent Sb compound is selected form the group consisting of diantimony trioxide, antimony trichloride, antimony tribromide, antimony (III) oxychloride and antimony (III) pentoxydichloride, and the pentavalent Sb compound is selected from the group consisting of diantimony pentoxide, antimony pentachloride and antimony (v) sulfide.
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이 특허를 인용한 특허 (3)
Kirch Lawrence S. (Huntingdon Valley PA) Kennelly William J. (Newtown PA), Catalyst compositions and their use for the preparation of methacrolein.
Aliev Vagab S. (ulitsa Nizami ; 66 Baku SUX) Rizaev Ramiz G. K. O. (ulitsa Sharif-zade ; 148 ; kv. 67 Baku SUX) Gadzhi-Kasumov Veli S. M. O. (ulitsa Shirshova ; 5 ; kv. 7 Baku SUX) Ter-Sarkisov Benia, Process for preparing butadiene (divinyl).
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