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    PROCESS FOR PREPARING LIGHT-COLOURED ISOCYANATES OF THE DIPHENYLMETHANE SERIES
    1.
    发明申请
    PROCESS FOR PREPARING LIGHT-COLOURED ISOCYANATES OF THE DIPHENYLMETHANE SERIES 审中-公开
    制备二苯基甲烷系列浅色异氰酸酯的方法

    公开(公告)号：WO2011006807A3

    公开(公告)日：2011-12-22

    申请号：PCT/EP2010059684

    申请日：2010-07-07

    Applicant: BASF SE ,  SCHELLING HEINER ,  SPEIER JON S ,  STROEFER ECKHARD ,  KIM BYOUNG-YEON

    Inventor： SCHELLING HEINER ,  SPEIER JON S ,  STROEFER ECKHARD ,  KIM BYOUNG-YEON

    IPC: C07C263/10 ,  C07C265/14

    CPC classification number: C07C263/10 ,  C07C2601/14 ,  C07C265/14

    Abstract: The present invention relates to a process for preparing light-coloured polyphenylene-polymethylene-polyisocyanate (PMDI), comprising the steps (a) providing carbon monoxide and chlorine, (b) reacting carbon monoxide with chlorine to form phosgene, (c) reacting the phosgene from step (b) with at least one primary amine with the exception of mono- and polyphenylene-polymethylene polyamines with an excess of phosgene to form an at least one isocyanate containing reaction solution, and hydrogen chloride, (d) separating excess phosgene from the isocyanate-containing reaction solution obtained in step (c), (e) providing at least one polyphenylene-polymethylene polyamine, and (f) reacting at least a portion of the phosgene separated in step (d) with the at least one polyphenylene-polymethylene polyamine to form the light-coloured polyphenylene-polymethylene polyisocyanate.

    Abstract translation: 包括以下步骤：（a）提供一氧化碳和氯，（b）使一氧化碳与氯反应形成光气，（c）使所述轻质多亚甲基多亚甲基多异氰酸酯（PMDI） （b）的光气与至少一种伯胺反应，不同之处在于单和多亚苯基多亚甲基多胺与过量的光气反应形成至少一种含异氰酸酯的反应溶液和氯化氢，（d）将过量的光气从 （c）中获得的含异氰酸酯的反应溶液，（e）提供至少一种聚亚苯基 - 多亚甲基多胺，和（f）使步骤（d）中分离的至少一部分光气与至少一种聚亚苯基 - 多亚甲基多胺以形成浅色聚亚苯基 - 多亚甲基多异氰酸酯。

    HIGHLY CONCENTRATED FORMALDEHYDE SOLUTION, PRODUCTION AND REACTION THEREOF
    2.
    发明申请
    HIGHLY CONCENTRATED FORMALDEHYDE SOLUTION, PRODUCTION AND REACTION THEREOF 审中-公开
    高浓度的甲醛溶液，生产的实施

    公开(公告)号：WO03040075A3

    公开(公告)日：2003-08-07

    申请号：PCT/EP0212346

    申请日：2002-11-05

    Applicant: BASF AG ,  STROEFER ECKHARD ,  SOHN MARTIN ,  HASSE HANS ,  SCHILLING KLEMENS

    Inventor： STROEFER ECKHARD ,  SOHN MARTIN ,  HASSE HANS ,  SCHILLING KLEMENS

    IPC: C07C45/86 ,  C07C31/02 ,  C07C31/20 ,  C07C45/79 ,  C07C45/82 ,  C07C47/04 ,  C07C47/058

    CPC classification number: C07C47/04 ,  C07C45/79 ,  C07C45/82 ,  C07C47/02

    Abstract: The invention relates to an aqueous formaldehyde solution, containing formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in a total concentration x >/= 65 wt. %. Said solution is characterized in that the average molar mass M of the polyoxymethylene glycols is equal or inferior to the values, which are obtained according to formula I, depending on the formaldehyde concentration, whereby M represents the average molar mass and x the total concentration of formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in wt. % (formaldehyde total concentration).

    Abstract translation: 本发明涉及包含单体甲醛，亚甲基二醇和聚氧亚甲基二醇在> / = 65重量％的总浓度x的形式甲醛甲醛水溶液，其特征在于，所述聚氧亚甲基二醇中的甲醛浓度的函数的平均摩尔质量M等于或小于 的平均值：值根据式I是获得 - 均分子量M; - 在单体甲醛，亚甲基二醇和以重量％聚甲醛二醇（总甲醛浓度）的形式的甲醛X总浓度。

    METHOD FOR PRODUCING METHYLENE DIPHENYL DIAMINE (MDA) VIA THE AMINAL STAGE
    6.
    发明申请
    METHOD FOR PRODUCING METHYLENE DIPHENYL DIAMINE (MDA) VIA THE AMINAL STAGE 审中-公开
    过程有关氨醛PRODUCING亚甲基二苯基（MDA）

    公开(公告)号：WO2010121990A3

    公开(公告)日：2010-12-23

    申请号：PCT/EP2010055126

    申请日：2010-04-19

    Applicant: BASF SE ,  STROEFER ECKHARD ,  THIELE KAI ,  ZOELLINGER MICHAEL ,  MOORS JOHNNY ,  SPEIER JON S

    Inventor： STROEFER ECKHARD ,  THIELE KAI ,  ZOELLINGER MICHAEL ,  MOORS JOHNNY ,  SPEIER JON S

    IPC: C07C209/62 ,  C07C209/78 ,  C07C211/55

    CPC classification number: C07C209/78 ,  C07C209/62 ,  C07C211/50

    Abstract: The invention relates to a method for producing methylene diphenyl diamine (MDA) comprising the following steps a) to c): a) converting formaldehyde and aniline to an aminal, (b) removing water from the aminal obtained in step a), wherein a water content of 0 to 5 wt. % relative to the aminal is set, and c) adding an acid catalyst to the aminal with a water content of 0 to 5 wt. %, characterized in that in step a) formaldehyde is used as a highly concentrated formaldehyde with a CH2O content > 50 wt. % and the formaldehyde is produced by the oxidative dehydrogenation of methanol.

    Abstract translation: 本发明涉及一种用于二苯基甲烷二胺（MDA）的制备包括以下步骤a）至c）：从在步骤a）的缩醛胺中获得的产物：a）甲醛和苯胺缩醛胺B的反应）除去水，其中水含量 0相对于5重量％调节到缩醛胺，和c）加入酸催化剂的缩醛胺为0的水含量至5重量％，其特征在于在步骤a）甲醛为高度浓缩的甲醛具有CH 2 O 含量> 50重量％时，和甲醛是由甲醇的氧化脱氢制备。

    METHOD FOR REMOVING FORMIC ACID FROM A TRIOXANE-CONTAINING MIXTURE
    8.
    发明申请
    METHOD FOR REMOVING FORMIC ACID FROM A TRIOXANE-CONTAINING MIXTURE 审中-公开
    从三氧化物混合物中去除抗酸的方法

    公开(公告)号：WO2009027434A2

    公开(公告)日：2009-03-05

    申请号：PCT/EP2008061222

    申请日：2008-08-27

    Applicant: BASF SE ,  SZARVAS LASZLO ,  LANG NEVEN ,  SIGWART CHRISTOPH ,  SIEGERT MARKUS ,  WINDLIN FRANZ NIKLAUS ,  STROEFER ECKHARD

    Inventor： SZARVAS LASZLO ,  LANG NEVEN ,  SIGWART CHRISTOPH ,  SIEGERT MARKUS ,  WINDLIN FRANZ NIKLAUS ,  STROEFER ECKHARD

    IPC: C07D323/06

    CPC classification number: C07D323/06

    Abstract: The invention relates to a method for removing formic acid from a mixture that contains formaldehyde, trioxane, water and formic acid, by distillation. According to said method, at least one tertiary amine and/or an imine or a mixture thereof capable of deprotonation and conversion to a salt is added, prior to or during distillation, to the mixture in a catalytic amount or in an amount sufficient to form the salt with the entire amount of formic acid, and the formic acid/amine salt is removed in a liquid phase in the distillation sump.

    Abstract translation: 在对甲酸从甲醛，三恶烷，水和通过蒸馏甲酸含酸混合物中分离的方法进行之前的混合物中使用，或者在蒸馏过程中，至少一种叔胺和/或亚胺或它们的混合物，所述去质子的甲酸，并在 盐以催化量或足以与总量的甲酸盐化的量存在，并且将所形成的甲酸 - 胺盐在蒸馏塔底物中以液相排出。

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