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    • 1. 发明授权
    • Continuous preparation of monoethanolamine, diethanolamine and triethanolamine
    • 连续制备单乙醇胺,二乙醇胺和三乙醇胺
    • US06696610B2
    • 2004-02-24
    • US10227831
    • 2002-08-27
    • Werner PeschelAxel HildebrandtBernd Bessling
    • Werner PeschelAxel HildebrandtBernd Bessling
    • C07C21304
    • C07C213/04Y02P20/127C07C215/08C07C215/12
    • A continuous process for the preparation of monoethanolamine, diethanolamine and triethanolamine by reacting ammonia and ethylene oxide in liquid phase in the presence of water as catalyst in a pressure column is proposed, where, as a result of the heat of the reaction, some of the ammonia evaporates, condenses at the head of the column and is again charged to the column, the reaction mixture at the bottom end of the pressure column is drawn off and then separated, the pressure column is constructed as a reactive distillation column (I) with evaporator at the bottom (S) and where, by means of inputting energy via the evaporator at the bottom (S), the weight ratio of monoethanolamine to diethanolamine to triethanolamine is controlled and, via the ratio of ammonia to ethylene oxide in the feed to the reactive distillation column (I), the ammonia proportion in the bottom product from the reactive distillation column (I) is controlled.
    • 提出了一种连续的制备单乙醇胺,二乙醇胺和三乙醇胺的方法,其中在水作为催化剂存在下,在压力塔中使氨和环氧乙烷在液相中反应,其中作为反应热的结果, 氨蒸发,在塔头冷凝,再次加入塔中,抽出压力塔底端的反应混合物,然后分离,将压力塔构建为反应蒸馏塔(I),与 蒸发器在底部(S),并且其中通过在底部(S)处的蒸发器输入能量,控制单乙醇胺与二乙醇胺与三乙醇胺的重量比,并且通过进料中氨与环氧乙烷的比例 反应蒸馏塔(I),来自反应蒸馏塔(I)的塔底产物中的氨比例被控制。
    • 3. 发明授权
    • Method and device for obtaining isobutenes from conjugated hydrocarbons
    • 从共轭烃获得异丁烯的方法和装置
    • US06362386B1
    • 2002-03-26
    • US09446532
    • 1999-12-28
    • Bernd BesslingJean Werner KnabWolfgang BroxBernd Lohe
    • Bernd BesslingJean Werner KnabWolfgang BroxBernd Lohe
    • C07C700
    • C07C7/14891Y02P20/127C07C11/09
    • A process for isolating isobutene from a hydrocarbon mixture by a) combining the C4-hydrocarbon mixture with a primary C3- or C4-alkanol; b) reacting the isobutene in the C4-hydrocarbon mixture with the primary C3- or C4-alkanol in the presence of a heterogeneous catalyst to give the corresponding tertiary ether of isobutene, c) separating the resultant reaction mixture into the relatively low-boiling, unetherified C4-hydrocarbons and the relatively higher-boiling tertiary ether of isobutene with the aid of a distillation column, where the C4-hydrocarbons are taken off at the top, and the tertiary ether of isobutene obtained at the bottom is transferred into a reactor, d) cleaving this ether into isobutene and the corresponding primary C3- or C4-alkanol, e) distilling this mixture from d) in a further distillation column, and taking off the isobutene as the top product, which comprises carrying out step a) in a zone (4C) containing reactive internals and containing the catalyst for carrying out step b) arranged in such a way that the zone (4C) is integrated into a distillation column (4), that a reactive distillation takes place in this zone (4C), and that the C3- or C4-alkanol is fed to the distillation column above the zone (4C) and the C4-hydrocarbon mixture is fed to the distillation column below the zone (4C).
    • 一种从烃混合物中分离异丁烯的方法,其方法是将C4-烃混合物与一种C 3 - 或C 4 - 链烷醇组合; b)使C 4 - 烃混合物中的异丁烯与C 3- 的非均相催化剂,得到相应的异丁烯叔乙醚,c)借助于蒸馏塔将所得反应混合物分离成相对低沸点的未乙醚化的C4烃和相对较高沸点的异丁烯叔醚,其中 在顶部取出C4烃,将底部获得的异丁烯的叔醚转移到反应器中,d)将该醚切割成异丁烯和相应的初级C3-或C4-链烷醇,e)蒸馏该混合物 从另一个蒸馏塔中除去异丁烯作为顶部产物,其包括在含有反应性内件的区域(4C)中进行步骤a)并含有用于承载的催化剂 排出步骤b)以使得区域(4C)整合到蒸馏塔(4)中的方式排列,在该区域(4C)中进行反应蒸馏,并且将C3-或C4-链烷醇进料至 将区域(4C)上方的蒸馏塔和C4-烃混合物进料到区域(4C)下方的蒸馏塔。
    • 4. 发明授权
    • Process for preparing esters of carboxylic acids
    • 制备羧酸酯的方法
    • US6028215A
    • 2000-02-22
    • US109767
    • 1998-07-06
    • Bernd BesslingBernd LoheRudiger WelkerWalter DisteldorfJean Werner Knab
    • Bernd BesslingBernd LoheRudiger WelkerWalter DisteldorfJean Werner Knab
    • B01J31/08B01D3/00B01D3/14B01J8/04B01J19/24B01J19/32C07B61/00C07C67/08C07C67/54C07C69/14C07C69/16
    • C07C67/08B01D3/009B01D3/14B01J19/32B01J8/0453C07C67/54B01J2208/00814Y02P20/127
    • A process for preparing esters from alcohol and carboxylic acid by a) feeding a mixture, comprising at least alcohol and/or carboxylic acid as educts, into a distillation column with separated sections containing reactive and conventional internals, wherein the reactive internals are arranged below the inlet of the mixture and conventional internals are arranged above the inlet of the mixture, b) reaction of the alcohol and the carboxylic acid in the reactive internals in presence of a catalyst, c) distillative separation of the evolving reaction mixture into the higher boiling ester and a lower boiling azeotrope containing alcohol, water and ester, wherein the ester accumulates in the bottom and the azeotrope is removed overhead, d) separation of the azeotrope in a phase separator in an aqueous phase and in an organic phase and the organic phase to be returned to the top of the column, wherein in step b) a heterogenous catalyst is utilized and in step c) the ester is taken off above the bottom as pure product between further conventional internals which differ in their arrangement from those in step a) and which are arranged above the inlet of a circulating evaporator.
    • 一种由醇和羧酸制备酯的方法,其方法是:a)将含有至少醇和/或羧酸的混合物作为离子液体进料到具有包含反应性和常规内部物质的分离部分的蒸馏塔中,其中反应性内部件布置在 混合物入口和常规内件布置在混合物入口的上方,b)在催化剂存在下,醇和羧酸在反应性内件中的反应,c)将放出的反应混合物蒸馏分离成高沸点酯 和含有醇,水和酯的低沸点共沸物,其中酯积聚在底部,共沸物在塔顶除去,d)将相分离器中的共沸物在水相和有机相中分离,并将有机相分离成 返回到塔的顶部,其中在步骤b)中使用异种催化剂,并且在步骤c)中,将酯从t上方取出 他作为在其布置方式与步骤a)中不同的另外的常规内件之间的纯产品底部,并且布置在循环蒸发器的入口上方。