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1.发明授权
公开(公告)号：US4310388A
公开(公告)日：1982-01-12
申请号：US126898
申请日：1980-03-03
申请人： Klaus Volkamer , Klaus Broellos , Alfred Lindner , Ulrich Wagner , Hans-Martin Weitz , Klaus-Juergen Schneider
发明人： Klaus Volkamer , Klaus Broellos , Alfred Lindner , Ulrich Wagner , Hans-Martin Weitz , Klaus-Juergen Schneider
CPC分类号： C07C7/08
摘要： A process for isolating a conjugated diolefin from a C.sub.4 - or C.sub.5 -hydrocarbon mixture containing the diolefin, by single-stage or multi-stage extractive distillation using a selective solvent, wherein the selective solvent is a solvent mixture which comprises(a) from 50 to 99 percent by weight of a selective solvent boiling at from 140.degree. C. to 260.degree. C. and(b) from 1 to 50 percent by weight of an organic solvent boiling at from 45.degree. C. to 125.degree. C.
摘要翻译： 一种通过使用选择性溶剂的单级或多级萃取蒸馏从含有二烯烃的C4-或C5-烃混合物中分离共轭二烯烃的方法，其中所述选择性溶剂是溶剂混合物，其包含（a）50 至99重量％的在140℃至260℃沸腾的选择性溶剂和（b）1至50重量％的沸点为45℃至125℃的有机溶剂。
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2.发明授权Isolation of a conjugated diolefin from a C.sub.4 - or C.sub.5 -hydrocarbon mixture 失效从C4或C5烃混合物中分离共轭二烯烃
公开(公告)号：US4277315A
公开(公告)日：1981-07-07
申请号：US126897
申请日：1980-03-03
申请人： Klaus Volkamer , Klaus Broellos , Alfred Lindner , Ulrich Wagner , Hans-Martin Weitz , Klaus-Juergen Schneider
发明人： Klaus Volkamer , Klaus Broellos , Alfred Lindner , Ulrich Wagner , Hans-Martin Weitz , Klaus-Juergen Schneider
CPC分类号： C07C7/08
摘要： A process for isolating a conjugated diolefin from a C.sub.4 - or C.sub.5 -hydrocarbon mixture containing the diolefin, by single-stage or multi-stage extractive distillation using a selective solvent, wherein the selective solvent is a solvent mixture which comprises(a) from 1 to 99 percent by weight of an N-alkyl-substituted lower aliphatic acid amide or of an N-alkyl-substituted alicyclic acid amide having 5 ring members and(b) from 1 to 99 percent by weight of an lower aliphatic carboxylic acid ester or carbonic acid ester boiling at from 30.degree. C. to 200.degree. C.
摘要翻译： 通过使用选择性溶剂的单级或多级萃取蒸馏从含有二烯烃的C4-或C5-烃混合物中分离共轭二烯烃的方法，其中所述选择性溶剂是溶剂混合物，其包含（a）1 至99重量％的N-烷基取代的低级脂肪酸酰胺或具有5个环成员的N-烷基取代的脂环酸酰胺和（b）1至99重量％的低级脂族羧酸酯或 碳酸酯在30〜200℃下沸腾。
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3.发明授权Separation of a mixture of C.sub.4 -hydrocarbons by extractive distillation 失效通过萃取蒸馏分离C {HD 4 {B-烃的混合物
公开(公告)号：US4162198A
公开(公告)日：1979-07-24
申请号：US906469
申请日：1978-05-17
申请人： Dieter Stockburger , Klaus Volkamer , Detlef Bender , Klaus-Juergen Schneider , Harald Schwentker , Ulrich Wagner , Hans-Martin Weitz
发明人： Dieter Stockburger , Klaus Volkamer , Detlef Bender , Klaus-Juergen Schneider , Harald Schwentker , Ulrich Wagner , Hans-Martin Weitz
CPC分类号： C07C7/08 , B01D3/40 , Y10S203/20
摘要： A process for separating, by means of a selective solvent, a mixture of C.sub.4 -hydrocarbons which contains some hydrocarbons which are more soluble in the selective solvent and some which are less soluble therein, in which process the hydrocarbon mixture is separated, in an extractive distillation zone, into a top product which contains the less soluble hydrocarbons and an extract which contains the more soluble hydrocarbons and the selective solvent, the extract, taken off as the bottom product, is subjected to a flash evaporation and the resulting vapor component of the extract is recycled to the extractive distillation zone while the liquid phase remaining after the flash evaporation is fed to a solvent recovery zone, in which the liquid phase obtained from the flash evaporation is separated into a product containing the hydrocarbons and, as the bottom product, the selective solvent which has been freed from the hydrocarbons, the resulting selective solvent is recycled to the extractive distillation zone and the product which is obtained from the solvent recovery zone and contains the hydrocarbons is partially or completely recycled to the extractive distillation zone, after increasing the pressure in a compression zone, in which process the extract taken off the extractive distillation zone is brought, prior to the flash evaporation to a higher pressure than the pressure in the extractive distillation zone and thereafter the extract which is under this higher pressure is heated, in a heat exchange zone, by indirect heat exchange with the selective solvent obtained as the bottom product from the solvent recovery zone, and the heated extract is subsequently let down, in the flash evaporation, to a pressure which is at least equal to the pressure in the extractive distillation zone and is higher than the pressure in the solvent recovery zone.
摘要翻译： 通过选择性溶剂分离出含有一些较易溶于选择性溶剂的烃和一些较不溶于其中的烃类的混合物的混合物的方法，在该方法中，烃混合物在萃取过程中分离 蒸馏区，成为含有较少溶解性烃的顶部产物和含有较多可溶性烃和选择性溶剂的提取物，作为底部产物取出的萃取物进行闪蒸，并将得到的蒸气成分 萃取液再循环到萃取蒸馏区，闪蒸蒸发后剩余的液相被送入溶剂回收区，其中将从闪蒸蒸发获得的液相分离成含有烃的产物，作为底部产物， 已经从烃中除去的选择性溶剂，所得到的选择性溶剂被再循环到萃取物中 蒸馏区和从溶剂回收区获得并且含有烃的产物在增加压缩区中的压力之后部分或完全再循环到萃取蒸馏区，在该过程中，提取物从萃取蒸馏区被带走 在闪蒸蒸发到比萃取蒸馏区中的压力高的压力之前，然后将在该较高压力下的提取物在热交换区域中与作为底部产物获得的选择性溶剂进行间接热交换 然后将被加热的提取物在闪蒸中降至至少等于萃取蒸馏区压力的压力，并高于溶剂回收区的压力。
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4.发明授权Isolation of a conjugated diolefin from a C.sub.4 - or C.sub.5 -hydrocarbon mixture 失效从C4或C5烃混合物中分离共轭二烯烃
公开(公告)号：US4278504A
公开(公告)日：1981-07-14
申请号：US126903
申请日：1980-03-03
申请人： Klaus Volkamer , Klaus Brollos , Alfred Lindner , Ulrich Wagner , Hans-Martin Weitz , Klaus-Jurgen Schneider
发明人： Klaus Volkamer , Klaus Brollos , Alfred Lindner , Ulrich Wagner , Hans-Martin Weitz , Klaus-Jurgen Schneider
CPC分类号： C07C7/08
摘要： A process for isolating a conjugated diolefin from a C.sub.4 - or C.sub.5 -hydrocarbon mixture containing the diolefin, by single-stage or multi-stage extractive distillation using a selective solvent, wherein the selective solvent is a solvent mixture which comprises(a) from 1 to 99 percent by weight of an N-alkyl-substituted lower aliphatic acid amide or of an N-alkyl-substituted alicyclic acid amide having 5 ring members and(b) from 1 to 99 percent by weight of an aliphatic or alicyclic ether boiling at from 30.degree. C. to 200.degree. C.
摘要翻译： 通过使用选择性溶剂的单级或多级萃取蒸馏从含有二烯烃的C4-或C5-烃混合物中分离共轭二烯烃的方法，其中所述选择性溶剂是溶剂混合物，其包含（a）1 至99重量％的N-烷基取代的低级脂肪酸酰胺或具有5个环成员的N-烷基取代的脂环族酰胺酰胺，和（b）1至99重量％的沸腾的脂族或脂环族醚 从30℃至200℃
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公开(公告)号：US4292141A
公开(公告)日：1981-09-29
申请号：US68741
申请日：1979-08-22
申请人： Alfred Lindner , Klaus Volkamer , Ulrich Wagner , Dieter Pommer , Klaus-Juergen Schneider , Harald Schwentker
发明人： Alfred Lindner , Klaus Volkamer , Ulrich Wagner , Dieter Pommer , Klaus-Juergen Schneider , Harald Schwentker
CPC分类号： C07C7/005
摘要： A process for isolating butadiene, with the aid of a selective solvent, from a C.sub.4 -hydrocarbon mixture which contains butadiene and small amounts of styrene and may contain oxygen, hydrocarbons more soluble than butadiene in the selective solvent and hydrocarbons less soluble than butadiene in the selective solvent, in which process the C.sub.4 -hydrocarbon mixture is separated by extractive distillation into a distillate which contains the less soluble hydrocarbons, a stream of butadiene and a stream containing the more soluble hydrocarbons, and in which a mixture of styrene and C.sub.4 -hydrocarbons is removed from the C.sub.4 -hydrocarbon mixture in a distillation zone upstream of the extractive distillation, the top product of the said distillation zone being fed to the extractive distillation.
摘要翻译： 在选择性溶剂的帮助下，从含有丁二烯和少量苯乙烯的C4-烃混合物中分离丁二烯的方法，并且可以含有氧，在选择性溶剂中比丁二烯更可溶的烃和比丁二烯更难溶解的烃 选择性溶剂，其中C4烃混合物通过萃取蒸馏分离成含有较少可溶性烃的馏出物，丁二烯流和含有较可溶性烃的物流，其中苯乙烯和C 4烃的混合物 在萃取蒸馏上游的蒸馏区中从C4烃混合物中除去，将所述蒸馏区的顶部产物进料至萃取蒸馏。
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6.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
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。
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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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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
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。
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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
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。
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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
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。
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