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公开(公告)号：US4049742A
公开(公告)日：1977-09-20
申请号：US669710
申请日：1976-03-23
摘要： 1,3-Butadiene is recovered with the aid of a selective solvent from a C.sub.4 -hydocarbon mixture containing 1,3-butadiene, hydrocarbons which are more soluble in said selective solvent than 1,3-butadiene, including acetylenes and possibly 1,2-butadiene and C.sub.5 -hydrocarbons, and hydrocarbons which are less soluble in said selective solvent than 1,3-butadiene. The C.sub.4 -hydrocarbon mixture is separated by the use of one or more extractive distilling zones into a distillate containing the less soluble hydrocarbons, a stream consisting of 1,3-butadiene and a stream containing the more soluble hydrocarbons including the higher acetylenes and 1,3-butadiene, the latter stream being subjected to catalytic hydrogenation.
摘要翻译： 借助于来自含有1,3-丁二烯的C4-碳氢化合物混合物的选择性溶剂回收1,3-丁二烯，在所述选择性溶剂中比1,3-丁二烯更可溶的烃，包括乙炔和可能的1,2- 丁二烯和C 5烃，以及比1,3-丁二烯更不溶于所述选择性溶剂的烃。 通过使用一个或多个萃取蒸馏区将C4烃混合物分离成含有较不溶性烃的馏出物，由1,3-丁二烯组成的物流和含有较可溶性烃的物流，包括较高乙炔和1， 3-丁二烯，后一个流进行催化氢化。
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2.发明授权Process for obtaining isobutene from C.sub.4 -hydrocarbon mixtures containing isobutene 失效从含有异丁烯的C 4烃混合物中获得异丁烯的方法
公开(公告)号：US4287379A
公开(公告)日：1981-09-01
申请号：US137750
申请日：1980-04-07
申请人： Erwin Brunner , Eckart Schubert , Alfred Lindner , Franz Merger , Klaus Volkamer , Max Strohmeyer , Gerhard Sandrock
发明人： Erwin Brunner , Eckart Schubert , Alfred Lindner , Franz Merger , Klaus Volkamer , Max Strohmeyer , Gerhard Sandrock
CPC分类号： C07C41/42 , C07C11/09 , C07C41/06 , C07C7/14891
摘要： A process for obtaining isobutene from a C.sub.4 -hydrocarbon mixture containing isobutene, by reacting the mixture with a primary alcohol in the presence of an acid condensing agent and decomposing the resulting tertiary ether in the presence of an acid catalyst at an elevated temperature, wherein a primary C.sub.3 - or C.sub.4 -alcohol is used.
摘要翻译： 通过在酸缩合剂存在下使该混合物与伯醇反应并在酸催化剂存在下在升高的温度下分解得到的叔乙醚，从含有异丁烯的C 4烃混合物中获得异丁烯的方法，其中a 使用初级C3-或C4-醇。
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