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2. 发明授权

US4405500A Halogen compound promoted Al.sub.2 O.sub.3 and/or SiO.sub.2 for the preparation of isoalkenes 失效
标题翻译：卤素化合物促进Al2O3和/或SiO2制备异烯烃
公开(公告)号：US4405500A
公开(公告)日：1983-09-20
申请号：US326711
申请日：1981-12-02
申请人： Hans J. Muller , Helmar Honig , Werner Horlitz
发明人： Hans J. Muller , Helmar Honig , Werner Horlitz
IPC分类号： B01J27/06 , B01J27/32 , C07C5/27 , B01J27/08 , B01J21/02 , B01J27/12 , C07C11/02
CPC分类号： B01J27/32 , B01J27/06 , C07C5/2786 , Y02P20/584
摘要： n-Alkenes can be converted catalytically into isoalkenes, when a mixture containing at least one n-alkene and hydrogen is brought into contact at a temperature of 400.degree. to 600.degree. C. and a residence time of 0.2 to 20 seconds with an Al.sub.2 O.sub.3 or SiO.sub.2 catalyst which is specifically activated and is promoted with halogen compounds of elements of the third to fifth main groups and second to eighth sub-groups of the periodic system and/or hydrohalic acids. The specific activation comprises calcining, before the promotion process, an aluminum hydroxide or aluminum oxide hydrate or a silica gel having a content of volatile ammonium salts to give Al.sub.2 O.sub.3 or SiO.sub.2, with expulsion of these volatile ammonium salts. For the conversion of the n-alkenes, the catalyst can be employed in a fixed or a mobilized catalyst bed. In cases where the catalyst is used in a mobilized catalyst bed it can be passed, by continuous or discontinuous removal of a portion of it, to a separate regeneration process and following regeneration can be reintroduced into the mobilized catalyst bed.
摘要翻译：当将包含至少一种正烯烃和氢的混合物在400℃至600℃的温度和0.2至20秒的停留时间与Al 2 O 3或（或）混合时，n-烯烃可以催化转化为异烯烃， SiO 2催化剂，其被特定活化并被周期性体系的第三至第五主族和第二至第八子族的元素的卤素化合物和/或氢卤酸促进。具体的活化方法包括在促进过程之前，将具有挥发性铵盐含量的氢氧化铝或氧化铝水合物或硅胶煅烧得到Al 2 O 3或SiO 2，同时排出这些挥发性铵盐。对于正烯烃的转化，催化剂可以用于固定的或动员的催化剂床中。在催化剂用于动员的催化剂床的情况下，可以通过连续或不连续地将其一部分除去一个单独的再生过程，并且随后的再生可以再次引入到动员的催化剂床中。

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