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Method of production of acrylic or methacrylic acid by oxidation of methacrolein or acrolein by the oxygen is a continuation in the presence of water vapor
Method of production of acrylic or methacrylic acid by oxidation of methacrolein or acrolein by the oxygen is a continuation in the presence of water vapor
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机译:在水蒸气存在下,通过氧氧化甲基丙烯醛或丙烯醛生产丙烯酸或甲基丙烯酸的方法是连续的
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摘要
P the present invention relates to a process for the production of acrylic or methacrylic acid by oxidation of methacrolein or of acrolein by the molecular oxygen in the presence of steam. / p & & p & it is characterized in that it uses the reaction mixture in contact with a catalyst containing, by way of major constituents, palladium, phosphorus, antimony, oxygen, and at least one metal x belonging to the list is formed by the group of the following metals: potassium, sodium, rubidium, lithium, cerium, beryllium, magnesium, calcium, vanadium, strontium, zinc, thorium and rhenium. / p & & p & it relates to these catalysts and to their use. / p
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