PROCESS FOR REDUCTIVE AMINATION OF ALIPHATIC CYANOALDEHYDES TO ALIPHATIC DIAMINES
    8.
    发明申请
    PROCESS FOR REDUCTIVE AMINATION OF ALIPHATIC CYANOALDEHYDES TO ALIPHATIC DIAMINES 有权
    脂肪族二胺的还原胺化方法

    公开(公告)号:US20120116124A1

    公开(公告)日:2012-05-10

    申请号:US13383596

    申请日:2010-07-30

    IPC分类号: C07C209/48 C07C211/18

    摘要: The instant invention provides a process for reductive amination of aliphatic cyanoaldehydes to aliphatic diamines, and aliphatic diamines produced via such method. The process for reductive amination of aliphatic cyanoaldehydes to aliphatic diamines comprises the steps of: (1) providing a mixture of one or more cycloaliphatic cyanoaldehydes, optionally water, and optionally one or more solvents, wherein said one or more cycloaliphatic cyanoaldehydes are selected from the group consisting of 1,3-cyanocyclohexane carboxaldehyde, 1,4-cyanocyclohexane carboxaldehyde, mixtures thereof, and combinations thereof; (2) contacting said mixture with a metal carbonate based solid bed or a weak base anion exchange resin bed at a temperature in the range of 15 to 40° C. for a period of at least 1 minute or more, for example 5 minutes or more; (3) thereby treating said mixture, wherein said treated mixture has a pH in the range of 6 to 9; (4) feeding said treated mixture, hydrogen, and ammonia into a continuous reductive amination reactor system; (6) contacting said treated mixture, hydrogen, and ammonia with each other in the presence of one or more heterogeneous metal based catalyst systems at a temperature in the range of from 80° C. to about 160° C. and a pressure in the range of from 700 to 3500 psig; (7) thereby producing one or more cycloaliphatic diamines, wherein said one or more cycloaliphatic diamines are diamines selected from the group consisting of 1,3-bis(aminomethyl)cyclohexane, 1,4-bis(aminomethyl)cyclohexane, combinations thereof, and mixtures thereof.

    摘要翻译: 本发明提供了脂肪族氰醛还原胺化成脂肪族二胺的方法,以及通过这种方法制备的脂肪族二胺。 将脂族氰醛还原胺化成脂族二胺的方法包括以下步骤:(1)提供一种或多种脂环族氰醛,任选的水和任选的一种或多种溶剂的混合物,其中所述一种或多种脂环族氰醛选自 由1,3-氰基环己烷甲醛,1,4-氰基环己烷甲醛,其混合物及其组合组成的组; (2)使所述混合物与金属碳酸盐基固体床或弱碱性阴离子交换树脂床在15至40℃的温度下接触至少1分钟或更长的时间,例如5分钟,或 更多; (3),从而处理所述混合物,其中所述处理的混合物的pH在6至9的范围内; (4)将所述处理的混合物,氢气和氨进料到连续还原胺化反应器系统中; (6)在一种或多种非均相金属基催化剂体系的存在下,在80℃至约160℃的温度范围内使所述经处理的混合物,氢气和氨彼此接触,并且在 范围从700至3500psig; (7),从而产生一种或多种脂环族二胺,其中所述一种或多种脂环族二胺是选自1,3-双(氨基甲基)环己烷,1,4-双(氨基甲基)环己烷及其组合的二胺和 其混合物。

    PROCESS AND EQUIPMENT FOR THE DECOMPOSITION AND RECOVERY OF ISOCYANATE COMPOUNDS
    9.
    发明申请
    PROCESS AND EQUIPMENT FOR THE DECOMPOSITION AND RECOVERY OF ISOCYANATE COMPOUNDS 有权
    异氰酸酯化合物的分解和还原过程和设备

    公开(公告)号:US20090275776A1

    公开(公告)日:2009-11-05

    申请号:US11995397

    申请日:2006-07-12

    摘要: The present invention relates to a method for decomposing and recovering an isocyanate compound, which comprises: continuously mixing and dispersing into water at high pressure and high temperature an isocyanate compound having at least one isocyanate group or group derived from an isocyanate group in a molten state or solution state, supplying a liquid mixture containing the isocyanate compound and the water at high pressure and high temperature continuously to a reactor, followed by subjecting the isocyanate compound to a decomposition reaction in the reactor, and recovering a raw material for the isocyanate compound or a derivative thereof; and an apparatus for decomposing and recovering an isocyanate compound, which comprises: a reactor which brings water at high pressure and high temperature into contact with an isocyanate compound having at least one isocyanate group or group derived from an isocyanate group to cause a decomposition reaction, a water supply line which continuously supplies the water at high pressure and high temperature to a reactor, a compound supply line which continuously supplies the isocyanate compound in a molten state or solution state to the water supply line, an on-off valve which communicates the compound supply line with a vicinity of a communication portion of the water supply line to the reactor, a dehydrating device which conducts a dehydration of a decomposition reaction product discharged from the reactor, and a purification device which purifies the decomposition reaction product after the dehydration.

    摘要翻译: 本发明涉及一种分解和回收异氰酸酯化合物的方法,包括:在高压和高温下连续混合和分散在具有至少一种异氰酸酯基团或衍生自异氰酸酯基团的基团的异氰酸酯化合物处于熔融状态 或溶液状态,将含有异氰酸酯化合物和水的液体混合物在高压高温下连续供给反应器,然后使异氰酸酯化合物在反应器中进行分解反应,并回收异氰酸酯化合物的原料或 其衍生物; 以及用于分解和回收异氰酸酯化合物的装置,其包括:使高压高温水与具有至少一个异氰酸酯基的异氰酸酯化合物或衍生自异氰酸酯基团的异氰酸酯化合物接触引起分解反应的反应器, 向反应器连续供给高压高温的水的供水管线,向熔融状态或溶液状态连续供给异氰酸酯化合物的供给管线,供给管路,其将 化合物供给管线,与供水管路的连通部分邻近反应器,将从反应器排出的分解反应产物脱水的脱水装置,以及在脱水后净化分解反应产物的净化装置。