HYDROLYZED NITRILOTRIACETONITRILE COMPOSITIONS, NITRILOTRIACETONITRILE HYDROLYSIS FORMULATIONS AND METHODS FOR MAKING AND USING SAME
    1.
    发明申请
    HYDROLYZED NITRILOTRIACETONITRILE COMPOSITIONS, NITRILOTRIACETONITRILE HYDROLYSIS FORMULATIONS AND METHODS FOR MAKING AND USING SAME 有权
    水解硝基乙酸酯组合物,硝基乙酸盐水解方法及其制备和使用方法

    公开(公告)号:US20110224107A1

    公开(公告)日:2011-09-15

    申请号:US13112032

    申请日:2011-05-20

    CPC classification number: C07C255/05

    Abstract: Hydrolyzed nitrilotriacetonitrile compositions are disclosed prepared by a method characterized by a one-shot addition of an amount of nitrilotriacetonitrile to a solution containing an acid catalyst, where the reaction is complete in a time period of less than an hour. The method is also characterized by adjusting the pH of the reaction mixture to a pH of at least 8. The method is also characterized by oxidatively removing free cyanide to a desired low level through the addition of an oxidizing agent the produces environmentally benign by-products to the crude hydrolyzed NTAN to form hydrolyzed NTAN compositions having minimized, negligible, or substantially no free cyanide levels.

    Abstract translation: 公开了水解的次氮基三乙腈组合物,其通过以下方法制备,其特征在于将一定量的次氮基三乙腈一次性加入到含有酸催化剂的溶液中,其中反应在少于1小时的时间内完成。 该方法的特征还在于将反应混合物的pH调节至至少8的pH。该方法的特征还在于通过加入产生环境友好的副产物的氧化剂将游离氰化物氧化去除所需的低水平 到粗水解的NTAN以形成具有最小化,可忽略或基本上没有游离氰化物水平的水解的NTAN组合物。

    Process for producing aliphatic tricarbonitriles
    3.
    发明申请
    Process for producing aliphatic tricarbonitriles 失效
    生产脂肪族三羰腈的方法

    公开(公告)号:US20020007081A1

    公开(公告)日:2002-01-17

    申请号:US09893858

    申请日:2001-06-28

    CPC classification number: C07C253/00 C07C255/05

    Abstract: The present invention relates to a process for producing tricarbonitriles corresponding to formula I 1 wherein n is an integer from 2 to 11 by forming an intermediate in the presence of a strong base in a first stage from an aliphatic null-null-dinitrile corresponding to formula II 2 wherein n is an integer from 3 to 12, and reacting the intermediate in a second stage to form a trinitrile corresponding to formula I by the addition of acrylonitrile.

    Abstract translation: 本发明涉及一种制备相应于式Ⅰ的三羰基腈的方法,其中n为2至11的整数,通过在第一阶段中在强碱存在下由相应于式II的脂族α-ω-二腈形成中间体 其中n为3-12的整数,并在第二阶段使中间体与丙烯腈相加形成对应于式I的三腈。

    Hydrolyzed nitrilotriacetonitrile compositions, nitrilotriacetonitrile hydrolysis formulations and methods for making and using same
    4.
    发明授权
    Hydrolyzed nitrilotriacetonitrile compositions, nitrilotriacetonitrile hydrolysis formulations and methods for making and using same 有权
    水解次氮基三乙腈组合物,次氮基三乙腈水解制剂及其制备和使用方法

    公开(公告)号:US08362298B2

    公开(公告)日:2013-01-29

    申请号:US13112012

    申请日:2011-05-20

    CPC classification number: C07C255/05

    Abstract: Hydrolyzed nitrilotriacetonitrile compositions are disclosed prepared by a method characterized by a one-shot addition of an amount of nitrilotriacetonitrile to a solution containing an acid catalyst, where the reaction is complete in a time period of less than an hour. The method is also characterized by adjusting the pH of the reaction mixture to a pH of at least 8. The method is also characterized by oxidatively removing free cyanide to a desired low level through the addition of an oxidizing agent the produces environmentally benign by-products to the crude hydrolyzed NTAN to form hydrolyzed NTAN compositions having minimized, negligible, or substantially no free cyanide levels.

    Abstract translation: 公开了水解的次氮基三乙腈组合物,其通过以下方法制备,其特征在于将一定量的次氮基三乙腈一次性加入到含有酸催化剂的溶液中,其中反应在少于1小时的时间内完成。 该方法的特征还在于将反应混合物的pH调节至至少8的pH。该方法的特征还在于通过加入产生环境友好的副产物的氧化剂将游离氰化物氧化去除所需的低水平 到粗水解的NTAN以形成具有最小化,可忽略或基本上没有游离氰化物水平的水解的NTAN组合物。

    Process for producing aliphatic tricarbonitriles
    10.
    发明授权
    Process for producing aliphatic tricarbonitriles 失效
    生产脂肪族三羰腈的方法

    公开(公告)号:US06790976B2

    公开(公告)日:2004-09-14

    申请号:US09893858

    申请日:2001-06-28

    CPC classification number: C07C253/00 C07C255/05

    Abstract: The present invention relates to a process for producing tricarbonitriles corresponding to formula I wherein n is an integer from 2 to 11 by forming an intermediate in the presence of a strong base in a first stage from an aliphatic &agr;-&ohgr;-dinitrile corresponding to formula II wherein n is an integer from 3 to 12, and reacting the intermediate in a second stage to form a trinitrile corresponding to formula I by the addition of acrylonitrile.

    Abstract translation: 本发明涉及一种制备相应于式I的方法,其中n为2至11的整数,通过在第一阶段中在强碱存在下,形成对应于式II的脂族α-ω-二腈的中间体,其中n为 3至12的整数,并在第二阶段使中间体反应,通过加入丙烯腈形成对应于式I的三腈。

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