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14 条记录 (耗时 0.025 秒)

    Obtaining but-2-enes from C.sub.4 -hydrocarbon mixtures which contain but-1-ene and may or may not contain but-2-enes
    3.
    发明授权
    Obtaining but-2-enes from C.sub.4 -hydrocarbon mixtures which contain but-1-ene and may or may not contain but-2-enes 失效
    从含有1-丁烯的C4-烃混合物中获得丁-2-烯，并且可以含有或不含有2-烯的

    公开(公告)号：US4777322A

    公开(公告)日：1988-10-11

    申请号：US759234

    申请日：1985-07-26

    申请人： Wolfgang Hoelderich ,  Alfred Lindner ,  Wolf D. Mross ,  Max Strohmeyer ,  Klaus Volkamer

    发明人： Wolfgang Hoelderich ,  Alfred Lindner ,  Wolf D. Mross ,  Max Strohmeyer ,  Klaus Volkamer

    IPC分类号： C07C1/00 ,  C07C5/25 ,  C07C7/04 ,  C07C11/08 ,  C07C67/00 ,  C07C5/23

    CPC分类号： C07C11/08 ,  C07C5/2518 ,  C07C5/2537 ,  C07C5/2556 ,  C07C7/04

    摘要： But-2-enes are obtained from C.sub.4 -hydrocarbon mixtures which contain but-1-ene and may or may not contain but-2-enes by catalytic isomerization of the but-1-ene to but-2-enes in an isomerization zone at elevated temperatures by a process in which the isomerization is carried out in combination with a distillative separation zone, the said hydrocarbon mixture being fed to the isomerization zone and/or distillative separation zone, the isomerization mixture obtained from the isomerization zone is passed into the distillative separation zone, a but-1-ene-containing fraction is removed above the lower third of the distillative separation zone and passed into the isomerization zone, and the but-2-enes or a fraction containing these are or is removed in the lower third of the distillative separation zone.

    摘要翻译： 丁-2-烯通过含有丁-1-烯的C 4烃混合物获得，并且可以通过在异构化区中丁-1-烯与丁-2-烯的催化异构化而含有或不含有2-烯 在升高的温度下，通过与蒸馏分离区组合进行异构化的方法，将所述烃混合物进料到异构化区和/或蒸馏分离区，将从异构化区获得的异构化混合物送入 蒸馏分离区，含有1-丁烯的馏分在蒸馏分离区的三分之一以下被除去并进入异构化区，并且将2-烯烃或其中含有的馏分在下部 三分之一的蒸馏分离区。

    Separation of a C.sub.4 -hydrocarbon mixture essentially containing n-butenes and butanes
    4.
    发明授权
    Separation of a C.sub.4 -hydrocarbon mixture essentially containing n-butenes and butanes 失效
    分离基本上含有正丁烯和丁烷的C4-烃混合物

    公开(公告)号：US4569725A

    公开(公告)日：1986-02-11

    申请号：US613388

    申请日：1984-05-23

    申请人： Alfred Lindner ,  Klaus Broellos ,  Gerhard Sandrock ,  Klaus Volkamer ,  Werner Hefner

    发明人： Alfred Lindner ,  Klaus Broellos ,  Gerhard Sandrock ,  Klaus Volkamer ,  Werner Hefner

    IPC分类号： C07C1/00 ,  C07C7/17 ,  C07C9/10 ,  C07C11/08 ,  C07C67/00 ,  B01D3/34

    CPC分类号： C07C7/17 ,  Y10S203/06

    摘要： A C.sub.4 -hydrocarbon mixture which essentially contains n-butenes and butanes is separated by a process in whichthe mixture is reacted with a carboxylic acid in the presence of an acidic catalyst to form a butyl carboxylate,the reaction mixture obtained from the esterification zone is distilled to give, as the top product, a fraction containing the butanes, and, as the bottom product, a fraction containing the resulting butyl carboxylate,the butyl carboxylate is decomposed at elevated temperatures to give the carboxylic acid and n-butenes, andthe mixture of n-butenes and carboxylic acid is then distilled, the n-butenes being obtained as the top product, and the carboxylic acid as the bottom product.

    摘要翻译： 基本上含有正丁烯和丁烷的C 4烃混合物通过在酸性催化剂存在下与羧酸反应以形成羧酸丁酯的方法分离，由酯化区获得的反应混合物为 蒸馏得到作为顶部产物的含有丁烷的馏分，作为底部产物，含有所得羧酸丁酯的馏分，羧酸丁酯在升高的温度下分解，得到羧酸和正丁烯，并且 然后蒸馏出正丁烯和羧酸的混合物，获得的正丁烯作为顶部产物，羧酸作为底部产物。

    Recovery of isoprene from a C.sub.5 -hydrocarbon mixture
    6.
    发明授权
    Recovery of isoprene from a C.sub.5 -hydrocarbon mixture 失效
    从C5烃混合物中回收异戊二烯

    公开(公告)号：US4647344A

    公开(公告)日：1987-03-03

    申请号：US662602

    申请日：1984-10-19

    申请人： Alfred Lindner ,  Ulrich Wagner ,  Klaus Volkamer ,  Walter Rebafka

    发明人： Alfred Lindner ,  Ulrich Wagner ,  Klaus Volkamer ,  Walter Rebafka

    IPC分类号： C07B61/00 ,  C07C1/00 ,  C07C7/08 ,  C07C7/10 ,  C07C7/163 ,  C07C11/18 ,  C07C67/00 ,  B01D3/40

    CPC分类号： C07C7/08 ,  C07C7/10 ,  Y10S203/20

    摘要： Isoprene is recovered from a C.sub.5 -hydrocarbon mixture containing isoprene, penta-1,3-diene and cyclopentadiene by separating the said mixture by liquid-liquid extraction or extractive distillation with the aid of a selective solvent, in combination with a distillation upstream or downstream from the liquid-liquid extraction or extractive distillation, by a method in which a stream containing penta-1,3-diene and cyclopentadiene is separated off in the upstream or downstream distillation and is catalytically hydrogenated, and the hydrogenated stream is fed to the upper part of the liquid-liquid extraction or extractive distillation.

    摘要翻译： 通过使用选择性溶剂的液 - 液萃取或萃取蒸馏分离所述混合物，与上游或下游的蒸馏相结合，从含有异戊二烯，五-1,3-二烯和环戊二烯的C5-烃混合物回收异戊二烯 从液 - 液萃取或萃取蒸馏中，通过在上游或下游蒸馏中分离出含有五-1,3-二烯和环戊二烯的物流并进行催化氢化的方法，并将氢化流进料至上层 液体萃取或萃取蒸馏的一部分。

    Isolation of 1,3-butadiene from a C4-hydrocarbon mixture
    8.
    发明授权
    Isolation of 1,3-butadiene from a C4-hydrocarbon mixture 失效
    从C4烃混合物中分离出1,3-丁二烯

    公开(公告)号：US4277314A

    公开(公告)日：1981-07-07

    申请号：US40283

    申请日：1979-05-18

    申请人： Alfred Lindner ,  Klaus Volkamer ,  Ulrich Wagner

    发明人： Alfred Lindner ,  Klaus Volkamer ,  Ulrich Wagner

    IPC分类号： C07C7/08 ,  C07C1/00 ,  C07C7/00 ,  C07C7/05 ,  C07C11/167 ,  C07C67/00 ,  B01D3/40

    CPC分类号： C07C7/005 ,  C07C7/05

    摘要： A process for isolating 1,3-butadiene by means of a selective solvent from a C.sub.4 -hydrocarbon mixture which contains 1,3-butadiene, propyne, hydrocarbons which are more soluble than 1,3-butadiene in the selective solvent and hydrocarbons which are less soluble than 1,3-butadiene in the selective solvent, wherein the C.sub.4 -hydrocarbon mixture is separated, using one or more extractive distillation zones, into a distillate containing the less soluble hydrocarbons, a stream of 1,3-butadiene and a stream containing the more soluble hydrocarbons, and the propyne is separated off either by distillation of the C.sub.4 -hydrocarbon mixture in a distillation zone upstream of the extractive distillation zone or zones or by distillation of the stream of 1,3-butadiene, obtained from the extractive distillation zone or zones, in a downstream distillation zone, giving a stream of hydrocarbons containing propyne and 1,3-butadiene, which stream is fed to an additional distillation zone, while at the same time a second stream of liquid or gaseous hydrocarbons is fed to the additional distillation zone, and the bottom product from the additional distillation zone is recycled to the extractive distillation.

    摘要翻译： 通过选择性溶剂从含有1,3-丁二烯，丙炔，在选择性溶剂中比1,3-丁二烯更可溶的烃的C 4烃混合物分离1,3-丁二烯的方法和烃，其为 在选择性溶剂中比1,3-丁二烯更难溶解，其中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，1,3-丁二烯流和流 含有较多的可溶性烃，丙炔通过在萃取蒸馏区或蒸馏区上游的蒸馏区中蒸馏出C4烃混合物，或通过蒸馏萃取物获得的1,3-丁二烯来分离。 蒸馏区或区域，在下游蒸馏区中，产生含有丙炔和1,3-丁二烯的烃流，该料流被供给到另外的蒸馏区，同时a 液体或气态烃的第二流进料到另外的蒸馏区，并且来自附加蒸馏区的底部产物被再循环至萃取蒸馏。

    Isolation of butadiene from a C.sub.4 -hydrocarbon mixture
    9.
    发明授权
    Isolation of butadiene from a C.sub.4 -hydrocarbon mixture 失效
    从C4烃混合物中分离丁二烯

    公开(公告)号：US4237330A

    公开(公告)日：1980-12-02

    申请号：US44029

    申请日：1979-05-31

    申请人： Alfred Lindner ,  Klaus Volkamer ,  Ulrich Wagner

    发明人： Alfred Lindner ,  Klaus Volkamer ,  Ulrich Wagner

    IPC分类号： C07C7/08 ,  C07C1/00 ,  C07C7/00 ,  C07C11/167 ,  C07C67/00

    CPC分类号： C07C7/005

    摘要： A process for isolating butadiene by means of a selective solvent from a C.sub.4 -hydrocarbon mixture which contains butadiene, small amounts of oxygen, hydrocarbons which are more soluble than butadiene in the selective solvent and hydrocarbons which are less soluble than butadiene in the selective solvent, wherein the C.sub.4 -hydrocarbon mixture is separated, by extractive distillation, into a distillate containing the less soluble hydrocarbons, a stream of butadiene and a stream containing the more soluble hydrocarbons, a mixture of oxygen and C.sub.4 -hydrocarbons is separated out of the C.sub.4 -hydrocarbon mixture in a distillation zone upstream of the extractive distillation, and the bottom product is fed to the extractive distillation.

    摘要翻译： 通过选择性溶剂从含有丁二烯，少量氧的C 4烃混合物，在选择性溶剂中比丁二烯更易溶的烃和在选择性溶剂中比丁二烯更难溶解的烃分离丁二烯的方法， 其中通过萃取蒸馏将C 4烃混合物分离成含有较不溶的烃，含有较可溶性烃的丁二烯流和含有较多可溶性烃的物流的馏出物，将C 4 - 烃的混合物从C4- 烃混合物在萃取蒸馏上游的蒸馏区中，并将底部产物进料至萃取蒸馏。

    Isolation of isobutene from C.sub.4 -hydrocarbon mixtures containing isobutene
    10.
    发明授权
    Isolation of isobutene from C.sub.4 -hydrocarbon mixtures containing isobutene 失效
    从含有异丁烯的C4烃混合物中分离异丁烯

    公开(公告)号：US4448643A

    公开(公告)日：1984-05-15

    申请号：US282746

    申请日：1981-07-13

    申请人： Alfred Lindner ,  Klaus Volkamer ,  Ulrich Wagner

    发明人： Alfred Lindner ,  Klaus Volkamer ,  Ulrich Wagner

    IPC分类号： C07C1/00 ,  C07C7/148 ,  C07C11/09 ,  C07C41/06 ,  C07C41/44 ,  C07C67/00 ,  B01D3/32

    CPC分类号： C07C41/44 ,  C07C41/06 ,  C07C7/14891 ,  Y10S203/06 ,  Y10S203/20

    摘要： A process for isolating isobutene from C.sub.4 -hydrocarbon mixtures containing isobutene by reacting the mixture with a primary alcohol in the presence of an acid condensing agent, to form the tertiary ether, separating off the unconverted hydrocarbons and decomposing the 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 and the temperature at which the reaction mixture leaves the etherification stage, in which the tertiary ether is formed, is lower than the mean temperature in the etherification stage.

    摘要翻译： 一种通过在酸缩合剂的存在下使该混合物与伯醇反应来分离含有异丁烯的C 4烃混合物的异丁烯的方法，以形成叔乙醚，分离出未转化的烃并在存在下分解叔乙醚 酸催化剂，其中使用初级C3-或C4-醇，并且反应混合物离开形成叔乙醚的醚化阶段的温度低于醚化阶段的平均温度。