Process for the ammoxidation of alkanes and olefins
    2.
    发明授权
    Process for the ammoxidation of alkanes and olefins 有权
    烷烃和烯烃的氨氧化方法

    公开(公告)号:US07186670B2

    公开(公告)日:2007-03-06

    申请号:US10955550

    申请日:2004-09-30

    IPC分类号: B01J23/20

    摘要: A process for the vapor phase ammoxidation of alkanes and olefins with a catalyst of the general empirical formula: VSbaMbQcOx wherein M is at least one element selected from magnesium, aluminum, zirconium, silicon, hafnium, titanium and niobium, Q is at least one element selected from rhenium, tungsten, molybdenum, tantalum, manganese, phosphorus, cerium, tin, boron, scandium, bismuth, gallium, indium, iron, chromium, lanthanum, yttrium, zinc, cobalt, nickel, cadmium, copper, strontium, barium, calcium, silver, potassium, sodium and cesium, a is 0.5 to 20, b is 2 to 50, c is 0 to 10 and x is determined by the valence requirements of the elements present. The process has a co-feed of gaseous carbon dioxide with an alkane (paraffin) and/or alkene, ammonia and an oxygen-containing gas which react in the presence of the catalyst to form a nitrile and by-products.

    摘要翻译: 烷烃和烯烃的气相氨氧化方法,其催化剂具有以下通用经验公式:<?in-line-formula description =“In-line Formulas”end =“lead”?> VSb >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 其中M是选自镁,铝,锆,硅,铪,钛和铌中的至少一种元素,Q是选自铼,钨,钼,钽,锰,磷,铈,锡,硼,钪中的至少一种元素 ,铋,镓,铟,铁,铬,镧,钇,锌,钴,镍,镉,铜,锶,钡,钙,银,钾,钠和铯,a为0.5〜20,b为2〜50 ,c为0至10,x由所存在的元素的化合价要求确定。 该方法具有气态二氧化碳与烷烃(石蜡)和/或烯烃,氨和含氧气体的共同进料,其在催化剂存在下反应以形成腈和副产物。