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    Process for the cleavage of alkylaryl hydroperoxides
    1.
    发明授权
    Process for the cleavage of alkylaryl hydroperoxides 有权

    公开(公告)号：US06444861B1

    公开(公告)日：2002-09-03

    申请号：US09978718

    申请日：2001-10-18

    申请人： Uwe Tanger ,  Manfred Weber

    发明人： Uwe Tanger ,  Manfred Weber

    IPC分类号： C07C3708

    CPC分类号： C07C37/08 ,  Y02P20/52 ,  Y02P20/582 ,  C07C39/04

    摘要： A process for the cleavage of alkylaryl hydroperoxides includes steps for producing a mixture of a concentrate that contains at least one alkylaryl hydroperoxide to be cleaved and a cleavage product obtained from the cleavage of an alkylaryl hydroperoxide, dividing this mixture into at least two parts and cleaving the alkylaryl hydroperoxides in parallel at different temperatures. One of the two parts is treated at a temperature sufficiently high for an integrated thermal post-treatment to be achieved. The process consumes less energy since less steam has to be used. Problems which can result from fouling in heat exchangers are largely prevented. No second feed point for alkylaryl hydroperoxide has to be provided. The process can be used in the preparation of phenol and acetone by the Hock method.

    Process for preparing phenols
    2.
    发明授权
    Process for preparing phenols 失效
    酚类制备方法

    公开(公告)号：US06630608B2

    公开(公告)日：2003-10-07

    申请号：US10090475

    申请日：2002-03-04

    申请人： Uwe Tanger ,  Reinhard Sigg ,  Siegmund Greschek ,  Manfred Weber

    发明人： Uwe Tanger ,  Reinhard Sigg ,  Siegmund Greschek ,  Manfred Weber

    IPC分类号： C07C3768

    CPC分类号： C07C37/08 ,  C07C39/04

    摘要： The present invention relates to a process for preparing phenols, in which the pH of the reaction product from the acid-catalyzed cleavage of alkylaryl hydroperoxides is set to a value of at least 8 at a temperature of at least 100° C. prior to the work-up of the product. This measure enables the content of undesirable by-products, e.g. hydroxyacetone, in the cleavage product to be significantly reduced. This procedure is particularly advantageously integrated into a process for preparing phenols by: a) acid-catalyzed cleavage of alkylaryl hydroperoxides and b) thermal after-treatment of the cleavage product from step a), with the temperature in step b) being higher than in step a) and is at least 100° C., wherein the adjustment to a pH of at least 8 is carried out after the thermal after-treatment and prior to cooling of the cleavage product.

    摘要翻译： 本发明涉及一种制备酚的方法，其中来自烷基芳基氢过氧化物的酸催化裂解的反应产物的pH在至少100℃的温度之前设定为至少8的值 产品的后处理。 该措施使得不期望的副产物的含量，例如 羟基丙酮，在裂解产物中显着降低。 该方法特别有利地整合到通过以下步骤制备酚的方法中：a）烷基芳基氢过氧化物的酸催化裂解和b）来自步骤a）的裂解产物的热后处理，步骤b）中的温度高于步骤 a）并且至少为100℃，其中调节至少8的pH在热后处理之后和在冷却切割产物之前进行。

    Method for producing aromatic alcohols, especially phenol
    7.
    发明授权
    Method for producing aromatic alcohols, especially phenol 失效
    制备芳香醇，特别是苯酚的方法

    公开(公告)号：US06720462B2

    公开(公告)日：2004-04-13

    申请号：US10239185

    申请日：2002-09-26

    申请人： Adolf Kuhnle ,  Mark Duda ,  Uwe Tanger ,  Roger Arthur Sheldon ,  Sasidharan Manickam ,  Isabella W. C. E. Arends

    发明人： Adolf Kuhnle ,  Mark Duda ,  Uwe Tanger ,  Roger Arthur Sheldon ,  Sasidharan Manickam ,  Isabella W. C. E. Arends

    IPC分类号： C07C3708

    CPC分类号： C07C409/14 ,  C07C37/08 ,  C07C45/53 ,  C07C407/00 ,  C07C409/08 ,  C07C409/10 ,  C07C2601/20 ,  Y02P20/52 ,  C07C49/403 ,  C07C49/413 ,  C07C49/08 ,  C07C39/04

    摘要： The invention relates to a process for preparing phenol derivatives by catalytic oxidation of an aromatic hydrocarbon to the hydroperoxide and subsequent cleavage of the hydroperoxide to give the phenol derivative and a ketone, wherein a compound of the formula I where R1, R2=H, aliphatic or aromatic alkoxy radical, carboxyl radical, alkoxycarbonyl radical or hydrocarbon radical, in each case having from 1 to 20 carbon atoms, SO3H, NH2, OH, F, Cl, Br, I and/or NO2, where R1 and R2 are identical or different radicals or R1 and R2 may be joined to one another via a covalent bond, and X, Z=C, S, CH2 Y=O, OH k=0, 1, 2 l=0, 1, 2 m=1-3; is used as oxidation catalyst in the presence of a free-radical initiator, where the molar ratio of the catalyst to the aromatic hydrocarbon is less than 10 mol %.

    摘要翻译： 本发明涉及一种通过将芳族烃催化氧化成氢过氧化物并随后切断氢过氧化物得到酚衍生物和酮的方法，其中式I其中R 1，R 2， 在每种情况下具有1至20个碳原子的SO 3 H，NH 2，OH，F，Cl，Br，I和/或NO 2，其中R'为H，脂族或芳族烷氧基，羧基，烷氧基羰基或烃基， 1>和R 2是相同或不同的基团，或者R 1和R 2可以通过共价键彼此连接，X，Z = C，S，CH 2 Y = O，OH k = 0,1 ，2l = 0,1,2m = 1-3;在自由基引发剂存在下用作氧化催化剂，其中催化剂与芳烃的摩尔比小于10mol％。

    Process and apparatus for the work-up by distillation of cleavage product mixtures produced in the cleavage of alkylaryl hydroperoxides
    8.
    发明授权
    Process and apparatus for the work-up by distillation of cleavage product mixtures produced in the cleavage of alkylaryl hydroperoxides 有权
    在烷基芳基氢过氧化物的裂解中产生的裂解产物混合物通过蒸馏处理的方法和装置

    公开(公告)号：US06657087B2

    公开(公告)日：2003-12-02

    申请号：US09986904

    申请日：2001-11-13

    申请人： Markus Weber ,  Christoph Schwarz ,  Uwe Tanger ,  Hermann-Josef Korte ,  Jochen Ullrich

    发明人： Markus Weber ,  Christoph Schwarz ,  Uwe Tanger ,  Hermann-Josef Korte ,  Jochen Ullrich

    IPC分类号： C07C4541

    CPC分类号： C07C45/53 ,  C07C37/74 ,  C07C39/04

    摘要： The present invention claims a process and an apparatus for the work-up by distillation of cleavage product mixtures produced in the cleavage of alkylaryl hydroperoxides. Usually, in the work-up by distillation of cleavage product mixtures which are produced in the cleavage of alkylaryl hydroperoxides, the cleavage product mixture is divided into three main fractions, for which at least two distillation columns are used. The use of two distillation columns has the disadvantage that the capital costs, and also the energy costs, in these conventional processes are relatively high. By means of the inventive process for the work-up by distillation of cleavage product mixtures, the equipment requirements and the energy consumption can be markedly reduced in comparison with customary plants, since the cleavage product mixture can be resolved into the three main fractions in only one apparatus. The inventive process can be used for the work-up by distillation of cleavage product mixtures produced in the cleavage of alkylaryl hydroperoxides, in particular in the cleavage of cumene hydroperoxide. By using the inventive process it is possible to separate off phenol and acetone from a cleavage product mixture that was obtained in the cleavage of cumene hydroperoxide.

    摘要翻译： 本发明要求用于通过蒸馏处理在烷基芳基氢过氧化物的裂解中产生的裂解产物混合物的方法和装置。 通常，在通过蒸馏在烷基芳基氢过氧化物的裂解中产生的裂解产物混合物的后处理中，将裂解产物混合物分成三个主要馏分，至少使用两个蒸馏塔。 使用两个蒸馏塔的缺点在于，这些常规方法中的资本成本和能源成本都相对较高。通过蒸馏裂解产物混合物的本发明方法，设备要求和 与常规植物相比，能量消耗可以显着降低，因为裂解产物混合物可以在一个装置中分解成三个主要部分。 本发明方法可用于通过蒸馏在烷基芳基氢过氧化物的切割中产生的裂解产物混合物的处理，特别是在氢过氧化枯烯的裂解中的后处理。 通过使用本发明的方法，可以从在氢过氧化枯烯的裂解中获得的裂解产物混合物中分离出苯酚和丙酮。

    Process for the continuous preparation of 3-halopropylorganosilanes
    9.
    发明授权
    Process for the continuous preparation of 3-halopropylorganosilanes 失效
    连续制备3-卤代丙基有机硅烷的方法

    公开(公告)号：US06242630B1

    公开(公告)日：2001-06-05

    申请号：US08908095

    申请日：1997-08-11

    申请人： Stefan Bade ,  Uwe Schoen ,  John Burkhard ,  Franz-Michael Bollenrath ,  Norbert Hofmann ,  Hermann-Josef Korte ,  Hartwig Rauleder ,  Uwe Tanger

    发明人： Stefan Bade ,  Uwe Schoen ,  John Burkhard ,  Franz-Michael Bollenrath ,  Norbert Hofmann ,  Hermann-Josef Korte ,  Hartwig Rauleder ,  Uwe Tanger

    IPC分类号： C07F708

    CPC分类号： C07F7/14 ,  C07F7/0829 ,  C07F7/1876

    摘要： A process for the continuous preparation of 3-halopropylorganosilanes of the general structure RbH3-a-bXaSiCH2CH2CH2Y  (III), where: R is CH3, C2H5, C3H7, OCH3, OC2H5 or OC3H7, X is F, Cl, Br or I, Y is F, Cl, Br or I, and a and b are each one of the numbers 0, 1, 2 or 3 and the sum a+b is 1, 2 or 3, comprising reacting, as starting materials, an allyl halide with a silane carrying at least one H atom, wherein the starting materials are present in stoichiometric amounts or one of the starting materials is present in substoichiometric amounts, wherein the reaction carried out is a partial reaction of from 10% to 80%, on a molar basis, of the starting materials, based on either material, when both are present in stoichiometric amounts, or based on the substoichiometric material.

    摘要翻译： 连续制备通常结构的3-卤代丙基有机硅烷的方法，其中R为CH 3，C 2 H 5，C 3 H 7，OCH 3，OC 2 H 5或OC 3 H 7，X为F，Cl，Br或I，Y为F，Cl，Br或I， 和b分别为数字0,1,2或3中的一个，并且和a + b为1,2或3，包括使烯丙基卤化物与携带至少一个H原子的硅烷作为原料，其中， 原料以化学计量的量存在，或者一种起始原料以亚化学计量的量存在，其中进行的反应是基于摩尔的10％至80％的起始原料的部分反应，基于任一材料 ，当两者都以化学计量的量存在时，或基于亚化学计量的材料。