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1. 发明授权

US4178309A Manufacture of symmetrical dialkylureas 失效
标题翻译：对称二烷基脲的制造
公开(公告)号：US4178309A
公开(公告)日：1979-12-11
申请号：US930160
申请日：1978-08-02
申请人： Dietrich Luetzow , Norbert Neth , Ulrich Wagner , Klaus Volkamer
发明人： Dietrich Luetzow , Norbert Neth , Ulrich Wagner , Klaus Volkamer
IPC分类号： C07C275/06 , C07C67/00 , C07C239/00 , C07C273/18 , C07C127/15
CPC分类号： C07C273/189
摘要： A process for the manufacture of symmetrical dialkylureas by reacting monoalkylamines with CO.sub.2 at an elevated temperature and under superatmospheric pressure, in which the unconverted starting materials, water and the by-products formed in the reaction zone, as well as alkylamine alkylcarbamate, after thermal decomposition into monoalkylamine, CO.sub.2 and water, are separated from the dialkylurea formed, and thereafter a part of the unconverted starting materials plus by-products, with or without water, may or may not be recycled to the reaction zone, before isolating an aqueous solution, containing monoalkylamines, CO.sub.2 and other by-products, which solution is treated with alkali metal hydroxide solution in a column, the monoalkylamine, after separation from carbon dioxide and water, being recycled to the reaction zone. The dialkylureas obtained contain not more than 1% of monoalkylurea and 1% of trialkylurea, and may be used as starting materials for various syntheses.
摘要翻译：在高温和超大气压下使单烷基胺与CO 2反应制备对称二烷基脲的方法，其中未转化的原料，反应区中形成的水和副产物以及烷基氨基甲酸烷基胺在热分解后分离成单烷基胺，二氧化碳和水，与形成的二烷基脲分离，然后在分离水溶液之前，将一部分未转化的原料加副产物（含或不含水）再循环至反应区，或不再循环至反应区，含有单烷基胺，CO 2和其它副产物，该溶液用柱中的碱金属氢氧化物溶液处理，单烷基胺在与二氧化碳和水分离后再循环至反应区。得到的二烷基脲含有不多于1％的单烷基脲和1％的三烷基脲，可用作各种合成的起始原料。

2. 发明授权

US4647344A Recovery of isoprene from a C.sub.5 -hydrocarbon mixture 失效
标题翻译：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。

3. 发明授权

US4277315A Isolation of a conjugated diolefin from a C.sub.4 - or C.sub.5 -hydrocarbon mixture 失效
标题翻译：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
IPC分类号： C07C1/00 , C07C7/08 , C07C11/12 , C07C67/00 , B01D3/40
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。

4. 发明授权

US4277314A Isolation of 1,3-butadiene from a C4-hydrocarbon mixture 失效
标题翻译：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。

5. 发明授权

US4414004A Removal of condensable aliphatic hydrocarbons and acidic gases from natural gas 失效
标题翻译：从天然气中去除可冷凝的脂族烃和酸性气体
公开(公告)号：US4414004A
公开(公告)日：1983-11-08
申请号：US356721
申请日：1982-03-10
申请人： Eckhart Wagner , Ulrich Wagner , Klaus Volkamer , Wolfgang Vodrazka
发明人： Eckhart Wagner , Ulrich Wagner , Klaus Volkamer , Wolfgang Vodrazka
IPC分类号： B01D53/14 , C07C7/11 , C10G5/04
CPC分类号： C10G5/04 , B01D53/1456 , B01D53/1487 , B01D53/1493 , C07C7/11 , C10G2300/1025
摘要： A process for removing condensable aliphatic hydrocarbons and acidic gases such as H.sub.2 S, CO.sub.2 and COS from natural gas containing these, wherein the natural gas is initially treated with polyethylene glycol dialkyl ethers, as the solvent, in a first absorption stage to effect absorption of the condensable aliphatic hydrocarbons; the natural gas drawn off from the first absorption stage is then treated with polyethylene glycol dialkyl ethers, as the solvent, under superatmospheric pressure in a second absorption stage, the acidic gases being completely or partly absorbed; the solvent charged with the condensable aliphatic hydrocarbons which is obtained from the first absorption stage is treated with water in an extraction stage, to form a hydrocarbon phase containing the condensable aliphatic hydrocarbons and an aqueous dialkyl ether phase, and the hydrocarbon phase is separated from the aqueous dialkyl ether phase. The solvent charged with acid gases which is obtained from the second absorption stage is regenerated by expansion and/or stripping in a regeneration stage and the regenerated solvent is recycled to the absorption.
摘要翻译：从含有这些的天然气中除去可冷凝的脂族烃和酸性气体如H 2 S，CO 2和COS的方法，其中在第一吸收阶段天然气首先用聚乙二醇二烷基醚作为溶剂处理，以实现吸收可缩合的脂族烃; 然后在第二吸收阶段的超大气压下，用作为溶剂的聚乙二醇二烷基醚处理从第一吸收阶段排出的天然气，酸性气体被完全或部分吸收; 在萃取阶段用水处理从第一吸收阶段得到的可冷凝脂肪族烃的溶剂，形成含有可冷凝脂族烃和二烷基醚水相的烃相，将烃相与二烷基醚相水相。通过在再生阶段中的膨胀和/或汽提再生从第二吸收阶段获得的装有酸性气体的溶剂，并将再生的溶剂再循环至吸收。

6. 发明授权

US4336233A Removal of CO.sub.2 and/or H.sub.2 S and/or COS from gases containing these constituents 失效
标题翻译：从含有这些成分的气体中去除二氧化碳和/或硫化氢和/或COS
公开(公告)号：US4336233A
公开(公告)日：1982-06-22
申请号：US177615
申请日：1980-08-13
申请人： Max Appl , Ulrich Wagner , Hans J. Henrici , Klaus Kuessner , Klaus Volkamer , Ernst Fuerst
发明人： Max Appl , Ulrich Wagner , Hans J. Henrici , Klaus Kuessner , Klaus Volkamer , Ernst Fuerst
IPC分类号： B01D53/14 , B01D53/40 , B01D53/48 , B01D53/77 , C10K1/14 , B01D53/34
CPC分类号： C10K1/143 , B01D53/1493 , C10K1/14 , Y02C10/06 , Y02P20/152
摘要： An aqueous solution containing from 0.81 to 1.3 moles of piperazine per liter is used as a washing agent for removing impurities such as H.sub.2 S, CO.sub.2 and COS from gases. Piperazine can also be used, in amounts of up to 0.8 mole per liter, together with physical or chemical solvents, to accelerate the absorption of H.sub.2 S, CO.sub.2 and COS. The washing process is used for natural gases, coke-oven gases, gases from the gasification of coal and synthesis gases, of any origin.
摘要翻译：使用含有0.81〜1.3摩尔哌嗪/升的水溶液作为从气体中除去H 2 S，CO 2，COS等杂质的洗涤剂。哌嗪也可以以每升高达0.8摩尔的量与物理或化学溶剂一起使用，以加速H2S，CO2和COS的吸收。洗涤过程用于天然气，焦炉气体，来自任何来源的煤和合成气体的气化。

7. 发明授权

US4310388A Isolation of a conjugated diolefin from a C.sub.4 - or C.sub.5 hydrocarbon 失效
标题翻译：从C4-或C5烃分离共轭二烯烃
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
IPC分类号： C07C1/00 , C07C7/08 , C07C11/12 , C07C67/00 , B01D3/40
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。

8. 发明授权

US4551158A Removal of CO.sub.2 and/or H.sub.2 S from gases 失效
标题翻译：从气体中去除二氧化碳和/或硫化氢
公开(公告)号：US4551158A
公开(公告)日：1985-11-05
申请号：US584867
申请日：1984-02-29
申请人： Eckhart Wagner , Klaus Volkamer , Werner Hefner , Ulrich Wagner
发明人： Eckhart Wagner , Klaus Volkamer , Werner Hefner , Ulrich Wagner
IPC分类号： C10L3/10 , B01D53/14 , C07C7/11 , C10K1/14 , B01D47/00
CPC分类号： B01D53/1462 , C07C7/11 , Y02C10/06 , Y02P20/152
摘要： CO.sub.2 and/or H.sub.2 S are removed from gases which contain CO.sub.2 and/or H.sub.2 S by means of an aqueous absorption liquid containing an alkanolamine, by a process wherein the said gas is treated, in an absorption stage, at from 40.degree. to 100.degree. C., with an aqueous absorption liquid containing from 20 to 70% by weight of methyldiethanolamine, the treated gas is taken off at the top of the absorption stage, the aqueous absorption liquid laden with CO.sub.2 and/or H.sub.2 S is taken off at the bottom of this stage and is regenerated by being let down in two or more flash stages, and the final flash stage is operated under reduced pressure and the regenerated absorption liquid is recycled to the absorption stage.
摘要翻译：通过在吸收阶段在40℃至100℃下处理所述气体的方法，通过含有链烷醇胺的吸收水溶液从含有CO 2和/或H 2 S的气体中除去CO 2和/或H 2 S. 使用含有20〜70重量％的甲基二乙醇胺的吸收液体，在吸收阶段的顶部除去处理后的气体，将含有CO 2和/或H 2 S的吸收液体的水分从该阶段通过在两个或更多个闪蒸阶段中放下来再生，并且最终的闪蒸阶段在减压下操作，再生的吸收液体被再循环到吸收阶段。

9. 发明授权

US4448643A Isolation of isobutene from C.sub.4 -hydrocarbon mixtures containing isobutene 失效
标题翻译：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。

10. 发明授权

US4292141A Isolation of butadiene from a C.sub.4 -hydrocarbon mixture 失效
标题翻译：从C4烃混合物中分离丁二烯
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
IPC分类号： C07C7/08 , C07C1/00 , C07C7/00 , C07C11/167 , C07C67/00 , B01D3/40
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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