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Production of catalyst with shell of catalytically-active oxide used e.g. in gas phase oxidation of propene to acrolein uses support with ring geometry
Production of catalyst with shell of catalytically-active oxide used e.g. in gas phase oxidation of propene to acrolein uses support with ring geometry
Production of catalyst with support having ring geometry and shell of catalytically-active oxide (I) containing molybdenum, bismuth, iron plus cobalt and/or nickel and optionally other elements involves producing dry mixture of starting materials for (I), thermal treatment at 150-350 deg C to give precursor mass, moistening support with water, contacting with mass to form coating, drying and calcination at 400-600 deg C. Production of a catalyst with support having ring geometry and shell of catalytically-active oxide of formula (I), containing molybdenum (Mo), bismuth (Bi), iron (Fe) plus cobalt (Co) and/or nickel (Ni) and optionally other elements, by producing intimate dry mixture of starting materials for (I), thermal treatment at 150-350 deg C to give precursor mass, moistening support with water, contacting it with this mass to form coating, drying and calcination at 400-600 deg C. X1 = cobalt (Co) and/or nickel (Ni); X2 = silicon (Si) and/or aluminum (Al); X3 = lithium (Li), sodium (Na), potassium (K), cesium (Cs) and/or rubidium (Rb); a = 0.2-1; b = 2-10; c = 0.5-10; d = 0-10; e = 0-0.5; y = value giving neutral charge, depending on valency and frequency of elements other than oxygen (O). An Independent claim is also included for catalysts produced in this way.
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机译:具有环几何形状的载体和包含钼,铋,铁加钴和/或镍和任选的其他元素的催化活性氧化物(I)的壳的催化剂的生产涉及生产用于(I)的原料的干燥混合物,在150℃下进行热处理-350℃,得到前体物料,用水润湿载体,与物料接触以形成涂层,在400-600℃下干燥和煅烧。制备具有环几何形状和式(I)的催化活性氧化物的壳的催化剂I),通过生产用于(I)的原料的紧密干燥混合物,包含钼(Mo),铋(Bi),铁(Fe)加上钴(Co)和/或镍(Ni)和其他可选元素。在150-350℃下加热得到前驱体,用水加湿载体,使其与该载体接触形成涂层,然后在400-600℃下干燥和煅烧。X 1 =钴(Co)和/或镍(Ni ); X 2 =硅(Si)和/或铝(Al); X 3 =锂(Li),钠(Na),钾(K),铯(Cs)和/或rub(Rb); a = 0.2-1; b = 2-10; c = 0.5-10; d = 0-10; e = 0-0.5; y =给出中性电荷的值,具体取决于除氧(O)以外的元素的化合价和频率。对于以这种方式生产的催化剂也包括独立权利要求。
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