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2. 发明授权

US06245931B1 Process for producing acrylonitrile or methacrylonitrile 失效
标题翻译：制备丙烯腈或甲基丙烯腈的方法
公开(公告)号：US06245931B1
公开(公告)日：2001-06-12
申请号：US08604323
申请日：1996-02-21
申请人： Kunitoshi Aoki , Satoru Komada
发明人： Kunitoshi Aoki , Satoru Komada
IPC分类号： C07C25324
CPC分类号： C07C253/26 , Y02P20/52 , C07C255/08
摘要： Disclosed is a process for producing acrylonitrile from propylene, or methacrylonitrile from isobutylene by ammoxidation using an improved catalyst composition comprising an oxide catalyst represented by the formula: MomBibFefNinQqAaEeOx, wherein Q is a mixture of chromium and indium, A is at least one element selected from potassium, rubidium and cesium, E is at least one element selected from manganese magnesium, zinc, cerium, sodium and phosphorus, and m is a number of from 10 to 14, b is a number of from 0.1 to 3, f is a number of from 0.1 to 3, n is a number of from 4 to 10, q is a number of from 0.1 to 2, a is a number of from 0.01 to 0.5, e is a number of from 0 to 3, and x is a number determined by the valence requirements of the other elements present, and a silica carrier having the oxide catalyst supported thereon, wherein the silica carrier is present in an amount of from 40 to 60% by weight, based on the total weight of the oxide catalyst and the silica carrier. With the oxide catalyst composition of the present invention, the desired acrylonitrile or methacrylonitrile can be produced in high yield.
摘要翻译：公开了一种由丙烯或异丁烯的甲基丙烯腈通过氨氧化制备丙烯腈的方法，使用改进的催化剂组合物，其包含由下式表示的氧化物催化剂：MomBibFefNinQqAaEex，其中Q是铬和铟的混合物，A是至少一种选自钾，铷和铯，E是选自锰镁，锌，铈，钠和磷中的至少一种元素，m为10至14的数，b为0.1至3的数，f为数为0.1〜3，n为4〜10的数，q为0.1〜2的数，a为0.01〜0.5的数，e为0〜3的数，x为数量由存在的其它元素的化合价要求确定，并且其上负载有氧化物催化剂的二氧化硅载体，其中二氧化硅载体的存在量为基于氧化物催化剂总重量的40至60重量％和二氧化硅载体。利用本发明的氧化物催化剂组合物，可以高产率制备所需的丙烯腈或甲基丙烯腈。

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