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    Process for the preparation of catalytic systems for the oxidative dehydrogenation of alkylaromatics or paraffins
    3.
    发明公开
    Process for the preparation of catalytic systems for the oxidative dehydrogenation of alkylaromatics or paraffins 有权
    一种制备Katalysatorzusammenstezungen用于烷基或石蜡的氧化脱氢过程

    公开(公告)号：EP1160011A1

    公开(公告)日：2001-12-05

    申请号：EP01201960.0

    申请日：2001-05-25

    申请人： Enichem S.p.A. ,  ENITECNOLOGIE S.p.A.

    发明人： Ingallina, Patrizia ,  Carluccio, Luciano ,  Perego, Carlo ,  Del Piero, Gastone ,  Assandri, Fabio

    IPC分类号： B01J23/22 ,  B01J23/18 ,  B01J21/10 ,  C07C5/42

    CPC分类号： C07C5/48 ,  B01J21/10 ,  B01J23/18 ,  B01J23/22 ,  B01J37/0236 ,  B01J37/08 ,  C07C2521/10 ,  C07C2523/18 ,  C07C2523/22 ,  C07C11/02 ,  C07C15/40

    摘要： Process for preparing catalytic systems consisting of:

    a vanadium oxide;
    a bismuth oxide;
    and a carrier consisting of magnesium oxide,
    wherein the vanadium, expressed as V 2 O 5 , is in a quantity ranging from 2 to 35% by weight, the bismuth, expressed as Bi 2 O 3 , ranges from 2 to 40% by weight, the complement to 100 being the carrier,
    characterized in that it essentially comprises the following steps:

    preparation of solutions based on derivatives of the components of the catalytic system;
    mixing of the solutions prepared and optional aging;
    drying of the solution obtained;
    first heating, in the presence of air, of the solid obtained from the drying at a temperature ranging from room value to a temperature of between 290 and 310°C, for a time ranging from 1 to 3 hours;
    optional second heating, in the presence of air, of the solid for a time ranging from 0.5 to 2 hours at a constant temperature, ranging from 290 to 310°C, reached in the first heating;
    additional heating, in the presence of air, of the solid for a time ranging from 2 to 4 hours at the calcination temperature ranging from 600 to 850°C;
    calcination, in the presence of air, of the solid at a constant temperature, ranging from 600 to 850°C, reached in the additional heating, for a time ranging from 8 to 16 hours.

    摘要翻译： 用于制备催化体系由以下组成：一氧化钒; 氧化铋; 和载体由氧化镁的，worin钒，表示为V 2 O 5，是在一定量的35％，铋，表示为的Bi2O3，重量范围为2至重量为2〜40％时，补充至100是 载体，在它为特征的那样基本上包括以下步骤：制备基于所述催化体系的组分的衍生物的解决方案; 制备的溶液和任选的老化的混合; 得到的溶液的干燥; 第一加热，在空气的存在下，将固体从在温度范围从室温到值的温度下干燥所获得的290和310℃之间，在一段时间范围从1至3小时; 任选的第二加热，在空气的存在下，固体的时间范围从0.5至2小时以恒定的温度，范围从290至310℃，在第一加热达到; 额外的加热，在空气的存在下，固体的时间为2至在煅烧温度为600至850℃4小时; 煅烧在空气中以恒定的温度存在固体，小时，从600至850℃，在另外的加热达到，一时间范围为8至16