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    PROCESS FOR DISTILLATIVE WORKUP OF A METHANOL/WATER MIXTURE AND PROCESS FOR PREPARING ALKALI METAL METHOXIDES
    1.
    发明申请
    PROCESS FOR DISTILLATIVE WORKUP OF A METHANOL/WATER MIXTURE AND PROCESS FOR PREPARING ALKALI METAL METHOXIDES 审中-公开
    甲醇/水混合物的分解工艺及制备碱金属甲醇的方法

    公开(公告)号：US20110313207A1

    公开(公告)日：2011-12-22

    申请号：US13203504

    申请日：2010-02-17

    申请人： Gerd Kaibel ,  Tilman Sirch ,  Raimund Felder ,  Josef Guth

    发明人： Gerd Kaibel ,  Tilman Sirch ,  Raimund Felder ,  Josef Guth

    IPC分类号： B01D3/00 ,  C07C29/00

    CPC分类号： B01D3/009 ,  B01D1/2856 ,  B01D3/14 ,  C07C29/70 ,  Y02P20/127 ,  C07C31/30

    摘要： The invention relates to a process for distillative workup of a methanol/water mixture, in which a methanol/water mixture is added to a distillation column (1), an essentially methanol-comprising vapor stream is withdrawn at the top of the distillation column (1) and an essentially water-comprising bottom stream at the bottom of the distillation column (1), at least a portion of the essentially methanol-comprising vapor stream is compressed and the compressed vapor stream is added as heating vapor to an evaporator (11) in which at least a portion of the methanol/water mixture to be separated is evaporated. The invention further relates to a process for preparing alkali metal methoxides in a reaction column (31) by adding methanol and alkali metal hydroxide solution to the reaction column (31), withdrawing alkali metal methoxide dissolved in methanol at the lower end of the reaction column (31) and withdrawing a methanol/water mixture at the upper end of the reaction column (31), and working up the methanol/water mixture by the process for distillative workup.

    摘要翻译： 本发明涉及一种用于甲醇/水混合物的蒸馏处理方法，其中将甲醇/水混合物加入到蒸馏塔（1）中，基本上含甲醇的蒸气流在蒸馏塔的顶部排出（ 1）和在蒸馏塔（1）底部的基本上含水的底部流，至少部分基本上含甲醇的蒸气流被压缩，并将压缩的蒸气流作为加热蒸气加入到蒸发器（11 ），其中要分离的至少一部分甲醇/水混合物蒸发。 本发明还涉及通过向反应塔（31）中加入甲醇和碱金属氢氧化物溶液，在反应塔（31）的下端除去溶解在甲醇中的碱金属甲醇盐，在反应塔（31）中制备碱金属甲醇盐的方法 （31），并在反应塔（31）的上端取出甲醇/水混合物，并通过蒸馏处理方法处理甲醇/水混合物。

    Method for purifying crude polymethylols
    4.
    发明授权
    Method for purifying crude polymethylols 失效
    粗多羟基甲基纤维素的纯化方法

    公开(公告)号：US08575401B2

    公开(公告)日：2013-11-05

    申请号：US13133499

    申请日：2009-12-07

    申请人： Tilman Sirch ,  Michael Steiniger ,  Steffen Maas ,  Stefan Rittinger

    发明人： Tilman Sirch ,  Michael Steiniger ,  Steffen Maas ,  Stefan Rittinger

    IPC分类号： C07C29/80

    CPC分类号： C07C29/141 ,  C07C29/80 ,  C08G18/56 ,  C08G63/16 ,  C08L75/04 ,  C07C31/22 ,  C07C31/245 ,  C07C31/20

    摘要： The present invention relates to a process for purifying crude polymethylol which comprises polymethylol of the formula (I) (HOCH2)2—C—R2  (I) in which each R is independently a further methylol group or an alkyl group having 1 to 22 carbon atoms or an aryl or aralkyl group having 6 to 22 carbon atoms, and also hydroxy acid of the formula (IV) in which each R is independently as defined above, which comprises performing the purification in a distillation column, the bottom of the distillation column being connected to an evaporator with a short residence time. The present invention further relates to a composition comprising polymethylol and 1 to 10 000 ppm by weight of an ester of polymethylol and of a hydroxy acid and to the use thereof.

    摘要翻译： 本发明涉及一种纯化粗多羟甲基的方法，其包括式（I）的多羟甲基（HOCH 2）2 -C-R 2（I），其中每个R独立地为另外的羟甲基或具有1至22个碳的烷基 原子或具有6至22个碳原子的芳基或芳烷基，以及式（IV）的羟基酸，其中每个R独立地如上定义，其包括在蒸馏塔中进行纯化，蒸馏塔的底部 连接到具有短停留时间的蒸发器。 本发明还涉及包含多羟甲基和1-10万重量ppm的多羟甲基和羟基酸的酯的组合物及其用途。

    Method For Production Of 1,6-Hexanediol With A Purity In Excess of 99.5%
    6.
    发明申请
    Method For Production Of 1,6-Hexanediol With A Purity In Excess of 99.5% 失效
    1,6-己二醇生产方法纯度超过99.5％

    公开(公告)号：US20080207958A1

    公开(公告)日：2008-08-28

    申请号：US10569980

    申请日：2005-07-07

    申请人： Andrea Haunert ,  Rolf Pinkos ,  Thomas Krug ,  Tilman Sirch ,  Michael Koch ,  Gerd-Dieter Tebben

    发明人： Andrea Haunert ,  Rolf Pinkos ,  Thomas Krug ,  Tilman Sirch ,  Michael Koch ,  Gerd-Dieter Tebben

    IPC分类号： C07C29/143

    CPC分类号： C07C29/145 ,  C07C29/149 ,  C07C2601/14 ,  C07C31/20 ,  C07C35/08

    摘要： The present invention provides a process for preparing 1,6-hexanediol by hydrogenating dialkyl adipates, alkyl 6-hydroxycaproates, 1,4-cyclohexanedione and 4-hydroxycyclohexan-1-one as ester mixtures comprising impurities, by a) freeing resulting the esterification mixture of excess alcohol and low boilers in a first distillation stage (alcohol removal), b) carrying out a separation of the bottom product in a second distillation stage into an ester fraction substantially free of 1,4-cyclohexanediols and a fraction comprising at least the majority of the 1,4-cyclohexanediols, c) catalytically hydrogenating the ester fraction substantially free of 1,4-cyclohexanediols (ester hydrogenation) and d) in a purifying distillation stage, obtaining 1,6-hexanediol from the hydrogenation effluent in a manner known per se, which comprises selectively hydrogenating the ester mixture before stage a) and/or before stage b) (purifying hydrogenation).

    摘要翻译： 本发明提供了一种通过以下方式制备1,6-己二醇的方法：通过以下方法将氢化己二酸二烷基酯，6-羟基己酸烷基酯，1,4-环己二酮和4-羟基环己烷-1-酮作为包含杂质的酯混合物， 在第一蒸馏阶段（醇去除）中的过量醇和低锅炉的b），b）在第二蒸馏阶段中将底部产物分离成基本上不含1,4-环己二醇的酯馏分和至少包含 大部分1,4-环己烷二醇，c）催化氢化基本上不含1,4-环己二醇的酯馏分（酯氢化）和d）在纯化蒸馏阶段，以一种方式从氢化流出物中获得1,6-己二醇 本身已知，其包括在阶段a）和/或阶段b）之前选择性地氢化酯混合物（纯化氢化）。

    Method for increasing yield in the production of polyvalent alcohols by splitting by-products containing acetal
    7.
    发明授权
    Method for increasing yield in the production of polyvalent alcohols by splitting by-products containing acetal 失效
    通过分解含缩醛的副产物来提高多元醇生产中产率的方法

    公开(公告)号：US07301058B2

    公开(公告)日：2007-11-27

    申请号：US10521810

    申请日：2003-07-18

    申请人： Alexander Wartini ,  Tilman Sirch ,  Johann-Peter Melder ,  Matthias Dernbach

    发明人： Alexander Wartini ,  Tilman Sirch ,  Johann-Peter Melder ,  Matthias Dernbach

    IPC分类号： C07C31/18

    CPC分类号： C07C29/141 ,  C07C29/10 ,  C07C29/88 ,  C07C45/75 ,  C07C31/22 ,  C07C47/19

    摘要： The invention relates to a method for increasing yield in the production of polyvalent alcohols, especially trimethylolpropane, obtained by condensing formaldehyde with a higher aldehyde. According to the inventive method, acid treatment is carried out on a mixture (high-boiling fraction) that is obtained by reprocessing, contains derivatives of said alcohols and has a higher boiling point than the respective alcohol, and the polyvalent alcohol is recovered from the acid-treated high-boiling fraction. The inventive method is characterised in that the water content of the high-boiling fraction amounts to between 20 and 90 wt. % in relation to the entire mixture of the high-boiling fraction and water.

    摘要翻译： 本发明涉及通过将甲醛与较高级醛缩合而获得的多价醇，特别是三羟甲基丙烷的生产中提高产量的方法。 根据本发明的方法，通过后处理获得的含有所述醇的衍生物并且具有比各醇更高的沸点的混合物（高沸点馏分）进行酸处理，并且从所述醇中回收多元醇 酸处理的高沸点馏分。 本发明的方法的特征在于高沸点馏分的含水量在20-90wt。之间。 相对于高沸点馏分和水的整个混合物的％。