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    • 2. 发明公开
    • Preparation of silica-alumine supported catalysts and of tertiary olefins by means of these catalysts
    • 一种用于在具有二氧化硅 - 氧化铝载体以及使用这些催化剂的叔烯烃的催化剂的制备过程。
    • EP0589557A2
    • 1994-03-30
    • EP93306152.5
    • 1993-08-04
    • SUMITOMO CHEMICAL COMPANY, LIMITED
    • Ishino, MasaruNakayama, Toshio
    • B01J23/02C07C1/20C07C11/02B01J37/02B01J21/12B01J37/08
    • B01J23/02B01J21/12C07C1/20C07C2521/12C07C11/02
    • Two methods are disclosed for preparing a silica-alumina supported catalyst (a) silica-alumina, e.g. as pellets, preferably previously calcined at 700-1200°C, is soaked in an aqueous solution of a hydroxide, or a weak acid salt of an alkali metal (Na,K) or an alkaline earth metal (Mg) whilst the pH is kept at 7-11 (preferably 7-10) so that the solution permeates the Si-Al solids; or
         (b) silica, e.g. as pellets, is soaked in an aqueous solution of an aluminum salt or Si powder is mixed with an Al salt, and the Al salt thus supported on Si is heated at a temperature, e.g. 100-1200°C, below the decomposition temperature of the salt, and the product is contacted with an aqueous solution as defined above, preferably by soaking the SiAl carrier in the solution at a pH of 7 to 11 so that the solution permeates the carrier.
      A gaseous tert-alkyl ether (MTBE) is contacted with the catalyst thus prepared at 100-400°C, optionally with addition of steam, so as to provide a tert-olefin (IB), in good yield and with low by-product formation.
    • 两种方法游离缺失盘用于制备氧化硅 - 氧化铝载体上的催化剂(A)的二氧化硅 - 氧化铝,E.G. 作为粒料,在700-1200℃下优选预先煅烧,以将氢氧化钠,或碱金属(钠,钾)或碱土金属(mg)的弱酸盐的溶液中浸渍,同时将pH保持 在7-11(优选地7-10)如此DASS模具溶液渗透在Si-Al固体; 或(b)二氧化硅,E.G. 作为粒料,浸泡在铝盐wässrige或Si粉末的溶液与盐混合于Al,并且因此支撑在Si上的Al盐进行加热的温度,E.G. 100-1200℃,低于该盐的分解温度,并且将产物用在wässrige溶液接触如上定义的,优选地通过在pH为7至11浸泡在该溶液中的硅铝载体所以没有溶液渗入载体 , 气态叔烷基醚(MTBE)与在100〜400℃下将这样制备,任选地加入蒸汽的催化剂接触,从而以良好的收率提供一种叔烯烃(IB)和具有低的副产物 形成。