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    • 3. 发明授权
    • Method for producing esters of multibasic acids
    • 生产多元酸酯的方法
    • US07385075B2
    • 2008-06-10
    • US10416465
    • 2001-11-13
    • Walter DisteldorfGünther GolfierBernd MorsbachKurt Schwirten
    • Walter DisteldorfGünther GolfierBernd MorsbachKurt Schwirten
    • C07C69/76
    • C07C67/08C07C67/54C07C69/44C07C69/80
    • A process is described for preparing esters of an acid component selected from among polybasic C4-C10 carboxylic acids and an alcohol component selected from among C3-C12 alkanols or from among C3-C12 alkanediols, the alkyl chain of which may have interruption by from 1 to 3 oxygen atoms, by a) heating at boiling point, in a reaction zone and in the presence of an esterification catalyst, a mixture essentially consisting of the acid component or of an anhydride thereof and of the alcohol component, b) using rectification to separate the vapor comprising alcohol and water into an alcohol-rich fraction and a water-rich fraction, and c) returning the alcohol-rich fraction into the reaction zone and conducting the water-rich fraction out of the process. The process is simple to carry out and permits rapid achievement of essentially quantitative conversion.
    • 描述了一种制备选自多元醇C 4 -C 10羧酸和选自C 3 -C 10羧酸的醇组分的酸组分的酯的方法, C 1 -C 12烷醇或C 3 -C 12烷二醇,其烷基链可能具有中断1至3个 氧原子,通过a)在沸点加热,在反应区和酯化催化剂存在下,基本上由酸组分或其酸酐和醇组分组成的混合物,b)使用精馏将 将含有醇和水的蒸汽加入富含醇的馏分和富含水的馏分中,以及c)将富含醇的馏分返回到反应区中,并将富含水的馏分导出该过程。 该过程很简单,可以快速实现基本的定量转化。
    • 7. 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。