Method for processing pTHF polymerization catalysts
    1.
    发明授权
    Method for processing pTHF polymerization catalysts 有权
    加工pTHF聚合催化剂的方法

    公开(公告)号:US06713422B1

    公开(公告)日:2004-03-30

    申请号:US09889403

    申请日:2001-07-17

    IPC分类号: B01J3806

    摘要: A process for working up at least partially deactivated polymerization catalysts for the polymerization or copolymerization of THF which are contaminated with the products of the polymerization or copolymerization of THF comprises (a) in a first step, cleaning the polymerization catalyst by treatment with steam at from 80 to 250° C. and a pressure of from 0.5 to 40 bar and, preferably, (b) in a second step, regenerating the clean polymerization catalyst.

    摘要翻译: 用于处理被THF聚合或共聚的产物污染的至少部分失活的聚合催化剂的聚合催化剂的方法包括(a)在第一步骤中,通过用 80至250℃,压力为0.5至40巴,优选(b)在第二步骤中再生清洁聚合催化剂。

    Method for producing polytetrahydrofurane having a low color indices
    3.
    发明授权
    Method for producing polytetrahydrofurane having a low color indices 有权
    具有低颜色指数的聚四氢呋喃的制备方法

    公开(公告)号:US07148318B2

    公开(公告)日:2006-12-12

    申请号:US10515208

    申请日:2003-05-19

    摘要: The invention provides a process for preparing polytetrahydrofuran, tetrahydrofuran copolymers, their monoesters or diesters and the monoesters or diesters of polytetrahydrofuran having a low color number in the presence of a catalyst, which comprises converting crude tetrahydrofuran which has been prepared in a manner per se into pure tetrahydrofuran by distillation, subsequently subjecting the latter to essentially complete hydrogenation and using the high-purity tetrahydrofuran obtained in this way for the polymerization directly after its preparation.

    摘要翻译: 本发明提供了一种在催化剂存在下制备聚四氢呋喃,四氢呋喃共聚物,它们的单酯或二酯以及具有低颜色数的聚四氢呋喃的单酯或二酯,其包括将以本身方式制备的粗四氢呋喃转化为 通过蒸馏进行纯四氢呋喃,随后使其后者基本上完全氢化,并使用这样获得的高纯度四氢呋喃直接在其制备之后进行聚合。

    Method for producing polytetrahydrofurane having a low color indices
    4.
    发明申请
    Method for producing polytetrahydrofurane having a low color indices 有权
    具有低颜色指数的聚四氢呋喃的制备方法

    公开(公告)号:US20050182238A1

    公开(公告)日:2005-08-18

    申请号:US10515208

    申请日:2003-05-19

    摘要: The invention provides a process for preparing polytetrahydrofuran, tetrahydrofuran copolymers, their monoesters or diesters and the monoesters or diesters of polytetrahydrofuran having a low color number in the presence of a catalyst, which comprises converting crude tetrahydrofuran which has been prepared in a manner per se into pure tetrahydrofuran by distillation, subsequently subjecting the latter to essentially complete hydrogenation and using the high-purity tetrahydrofuran obtained in this way for the polymerization directly after its preparation.

    摘要翻译: 本发明提供了一种在催化剂存在下制备聚四氢呋喃,四氢呋喃共聚物,它们的单酯或二酯以及具有低颜色数的聚四氢呋喃的单酯或二酯,其包括将以本身方式制备的粗四氢呋喃转化为 通过蒸馏进行纯四氢呋喃,随后使其后者基本上完全氢化,并使用这样获得的高纯度四氢呋喃直接在其制备之后进行聚合。

    Process for preparing aminoalkyl nitriles and diamines from such nitriles
    5.
    发明授权
    Process for preparing aminoalkyl nitriles and diamines from such nitriles 有权
    从这种腈制备氨基烷基腈和二胺的方法

    公开(公告)号:US08497399B2

    公开(公告)日:2013-07-30

    申请号:US13274772

    申请日:2011-10-17

    IPC分类号: C07C209/48

    摘要: A process for preparing a diamine from a corresponding aminoalkyl nitrile, which is prepared by reaction of a corresponding monoamine with a corresponding alkenyl nitrile in a continuous mode of operation, comprising the steps: a) introduction of the corresponding monoamine into a continuously conveyed reaction stream; b) introduction of the corresponding alkenyl nitrile into the reaction stream, with this already comprising the aminoalkyl nitrile on addition; c) reaction of the reaction stream in a first reaction region; d) at least partial transfer of the reaction stream into at least one second reaction region for further reaction; e) discharge of the reaction stream from the second reaction region after the reaction; f) introduction of the reaction stream discharged in step (a) into a reduction region; and g) reduction of the aminoalkyl nitrile present in the reaction stream to the corresponding diamine.

    摘要翻译: 一种由相应的氨基烷基腈制备二胺的方法,该方法是通过相应的单胺与相应的链烯基腈在连续运行方式下反应而制得的,其中包括步骤:a)将相应的单胺引入连续输送的反应流 ; b)将相应的烯基腈引入反应流中,其中已加入氨基烷基腈; c)反应流在第一反应区域中的反应; d)将反应物流至少部分转移至至少一个第二反应区域用于进一步反应; e)反应后从第二反应区排出反应物流; f)将步骤(a)中排出的反应流引入还原区; 和g)将反应流中存在的氨基烷基腈还原成相应的二胺。

    Process for preparing aminoalkylnitriles and diamines from such nitriles
    6.
    发明授权
    Process for preparing aminoalkylnitriles and diamines from such nitriles 有权
    从这种腈制备氨基烷基腈和二胺的方法

    公开(公告)号:US08063239B2

    公开(公告)日:2011-11-22

    申请号:US12298939

    申请日:2007-05-07

    IPC分类号: C07F7/00

    摘要: The present invention relates to a process for preparing an aminoalkyl nitrile by reaction of a corresponding monoamine with a corresponding alkenyl nitrile in a continuous mode of operation, which comprises the steps (a) introduction of the corresponding monoamine into a continuously conveyed reaction stream; (b) introduction of the corresponding alkenyl nitrite into the reaction stream, with this already comprising the aminoalkyl nitrile on addition; (c) reaction of the reaction stream in a first reaction region; and (d) at least partial transfer of the reaction stream into at least one second reaction region for further reaction. The invention further relates to a process for preparing a diamine from the aminoalkyl nitrile, suitable apparatuses for carrying out the processes and their corresponding use.

    摘要翻译: 本发明涉及通过相应的单胺与相应的烯基腈在连续操作模式下反应来制备氨基烷基腈的方法,其包括步骤(a)将相应的单胺引入连续输送的反应流中; (b)将相应的烯基亚硝酸酯引入反应流中,其中已加入氨基烷基腈; (c)反应流在第一反应区域中的反应; 和(d)将反应物流至少部分转移到至少一个第二反应区域中用于进一步反应。 本发明还涉及从氨基烷基腈制备二胺的方法,用于实施该方法及其相应用途的合适装置。

    PROCESS FOR PREPARING AMINOALKYLNITRILES AND DIAMINES FROM SUCH NITRILES
    7.
    发明申请
    PROCESS FOR PREPARING AMINOALKYLNITRILES AND DIAMINES FROM SUCH NITRILES 有权
    制备氨基甲酰胺和这些硝基的DIAMINES的方法

    公开(公告)号:US20090069590A1

    公开(公告)日:2009-03-12

    申请号:US12298939

    申请日:2007-05-07

    摘要: The present invention relates to a process for preparing an aminoalkyl nitrile by reaction of a corresponding monoamine with a corresponding alkenyl nitrile in a continuous mode of operation, which comprises the steps (a) introduction of the corresponding monoamine into a continuously conveyed reaction stream; (b) introduction of the corresponding alkenyl nitrite into the reaction stream, with this already comprising the aminoalkyl nitrile on addition; (c) reaction of the reaction stream in a first reaction region; and (d) at least partial transfer of the reaction stream into at least one second reaction region for further reaction. The invention further relates to a process for preparing a diamine from the aminoalkyl nitrile, suitable apparatuses for carrying out the processes and their corresponding use.

    摘要翻译: 本发明涉及通过相应的单胺与相应的烯基腈在连续操作模式下反应来制备氨基烷基腈的方法,其包括步骤(a)将相应的单胺引入连续输送的反应流中; (b)将相应的烯基亚硝酸酯引入反应流中,其中已加入氨基烷基腈; (c)反应流在第一反应区域中的反应; 和(d)将反应物流至少部分转移到至少一个第二反应区域中用于进一步反应。 本发明还涉及从氨基烷基腈制备二胺的方法,用于实施该方法及其相应用途的合适装置。

    PROCESS FOR PREPARING AMINOALKYLNITRILES AND DIAMINES FROM SUCH NITRILES
    8.
    发明申请
    PROCESS FOR PREPARING AMINOALKYLNITRILES AND DIAMINES FROM SUCH NITRILES 有权
    制备氨基甲酰胺和这些硝基的DIAMINES的方法

    公开(公告)号:US20120071694A1

    公开(公告)日:2012-03-22

    申请号:US13274772

    申请日:2011-10-17

    IPC分类号: C07C209/48

    摘要: A process for preparing a diamine from a corresponding aminoalkyl nitrile, which is prepared by reaction of a corresponding monoamine with a corresponding alkenyl nitrile in a continuous mode of operation, comprising the steps: a) introduction of the corresponding monoamine into a continuously conveyed reaction stream; b) introduction of the corresponding alkenyl nitrile into the reaction stream, with this already comprising the aminoalkyl nitrile on addition; c) reaction of the reaction stream in a first reaction region; d) at least partial transfer of the reaction stream into at least one second reaction region for further reaction; e) discharge of the reaction stream from the second reaction region after the reaction; f) introduction of the reaction stream discharged in step (a) into a reduction region; and g) reduction of the aminoalkyl nitrile present in the reaction stream to the corresponding diamine.

    摘要翻译: 一种由相应的氨基烷基腈制备二胺的方法,该方法是通过相应的单胺与相应的链烯基腈在连续运行方式下反应而制得的,其中包括步骤:a)将相应的单胺引入连续输送的反应流 ; b)将相应的烯基腈引入反应流中,其中已加入氨基烷基腈; c)反应流在第一反应区域中的反应; d)将反应物流至少部分转移至至少一个第二反应区域用于进一步反应; e)反应后从第二反应区排出反应物流; f)将步骤(a)中排出的反应流引入还原区; 和g)将反应流中存在的氨基烷基腈还原成相应的二胺。

    Method for obtaining oligomers of polytetrahydofurane or tetrahydrofurane
    9.
    发明授权
    Method for obtaining oligomers of polytetrahydofurane or tetrahydrofurane 有权
    获得聚四氢呋喃或四氢呋喃的低聚物的方法

    公开(公告)号:US07718041B2

    公开(公告)日:2010-05-18

    申请号:US10563421

    申请日:2004-06-19

    IPC分类号: B01D3/10 C07C29/80 C07D307/08

    摘要: A process for obtaining oligomers of polytetrahydrofuran or of tetrahydrofuran copolymers from a methanolic crude product which contains polytetrahydrofuran or tetrahydrofuran copolymers and is obtained in the transesterification of the mono- and/or diesters of polytetrahydrofuran or tetrahydrofuran copolymers with methanol, which includes a) removing the majority of the methanol from the crude product in a first distillation stage, b) separating the resulting bottom product by distillation into a top fraction containing the oligomers of polytetrahydrofuran or of tetrahydrofuran copolymers, and polytetrahydrofuran or tetrahydrofuran copolymer, and c) condensing the oligomers of polytetrahydrofuran or of tetrahydrofuran copolymers out of the top fraction from stage b).

    摘要翻译: 从含有聚四氢呋喃或四氢呋喃共聚物的甲醇粗产物中获得聚四氢呋喃或四氢呋喃共聚物的低聚物的方法,是在聚四氢呋喃或四氢呋喃共聚物与甲醇的单酯和/或二酯的酯交换反应中获得的,其包括a) 大部分来自粗产物的甲醇在第一蒸馏阶段中,b)通过蒸馏将所得的底部产物分离成含有聚四氢呋喃或四氢呋喃共聚物的低聚物和四氢呋喃或四氢呋喃共聚物的顶级馏分,和c)将 聚四氢呋喃或来自阶段b)的顶级馏分中的四氢呋喃共聚物。