Process for the preparation of dinitriles
    1.
    发明授权
    Process for the preparation of dinitriles 有权
    制备二腈的方法

    公开(公告)号:US07897801B2

    公开(公告)日:2011-03-01

    申请号:US10556629

    申请日:2004-05-07

    IPC分类号: C07C253/08

    摘要: The present invention relates to a process for the preparation of dinitriles by hydrocyanation of unsaturated nitrile compounds in the presence of a catalyst based on a metal element in the zero oxidation state and on organophosphorus ligands;the invention relates more particularly to a process for the recovery from the hydrocyanation medium of a catalyst for the hydrocyanation of unsaturated nitrites to dinitriles. It consists in controlling the concentration of unsaturated nitrites in the reaction medium resulting from the hydrocyanation reaction in order to obtain a concentration by weight of unsaturated nitrites of less than 20% in the said medium, and in then feeding the said medium to a stage of settling into two upper and lower phases. The lower phase comprises most of the catalytic system, while the upper phase is composed essentially of the dinitriles.

    摘要翻译: 本发明涉及一种通过在基于零氧化态的金属元素和有机磷配体的催化剂存在下,通过不饱和腈化合物的氢氰化来制备二腈的方法;本发明更具体地涉及一种回收方法 来自用于将不饱和亚硝酸盐氢化成二腈的催化剂的氢化细胞培养基。 它包括控制由氢氰化反应产生的反应介质中的不饱和亚硝酸盐的浓度,以便在所述介质中获得小于20%的不饱和亚硝酸盐的重量浓度,然后将所述介质供给到 沉入两个上下相。 较低的相包含大部分催化体系,而上部相基本上由二腈组成。

    Process of synthesis of compounds having nitrile functions from ethylenically unsaturated compounds
    2.
    发明授权
    Process of synthesis of compounds having nitrile functions from ethylenically unsaturated compounds 有权
    从烯属不饱和化合物合成具有腈官能团的化合物的方法

    公开(公告)号:US07084293B2

    公开(公告)日:2006-08-01

    申请号:US10353912

    申请日:2003-01-30

    IPC分类号: C07C253/00

    CPC分类号: C07C253/10 C07C255/04

    摘要: The present invention relates to a process of hydrocyanation of ethylenically unsaturated organic compounds to compounds having at least one nitrile function, particularly the hydrocyanation of diolefins such as butadiene, or of substituted olefins such as alkene nitrites such as pentenenitriles; the subject hydrocyanation is carried out in the presence of a catalytic system comprising a metallic element and mono- and pluri-dentate organophosphorus ligands.

    摘要翻译: 本发明涉及一种将烯属不饱和有机化合物氢化成具有至少一个腈官能团的化合物的方法,特别是二烯烃如丁二烯或取代的烯烃如亚硝酸亚烷基酯如戊烯腈的氢氰化反应; 本发明的氢氰化反应在包含金属元素和单和三元有机磷配体的催化体系的存在下进行。

    Process for the hydrocyanation of unsaturated compounds
    3.
    发明授权
    Process for the hydrocyanation of unsaturated compounds 有权
    不饱和化合物的氢化方法

    公开(公告)号:US07612223B2

    公开(公告)日:2009-11-03

    申请号:US10556628

    申请日:2004-05-07

    IPC分类号: C07C253/00

    CPC分类号: C07C253/34 C07C255/04

    摘要: The present invention relates to a process for the hydrocyanation of unsaturated compounds to unsaturated mononitrile compounds or to dinitrile compounds; It relates more particularly to a process for the manufacture of dinitriles by double hydrocyanation of diolefins, such as butadiene, comprising a recovery and separation of the catalytic system. The process for the manufacture of dinitriles of the invention by hydrocyanation of unsaturated compounds, comprising at least one stage of hydrocyanation in the presence of a catalytic system comprising an organometallic complex formed by one or more monodentate organophosphite ligands and one or more bidentate organophosphorus ligands and optionally a promoter of Lewis acid type, comprises at least one stage of separation by distillation of a reactant used in the process or of a compound formed by the reaction from a medium comprising the said catalytic system.

    摘要翻译: 本发明涉及不饱和化合物氢化成不饱和单腈化合物或二腈化合物的方法; 更具体地涉及通过二烯烃如丁二烯的双氢氰化制备二腈的方法,其包括催化体系的回收和分离。 通过氢化不饱和化合物的方法制备本发明的二腈的方法,该方法在包含由一个或多个单齿有机亚磷酸酯配体和一个或多个二齿有机磷配体形成的有机金属络合物的催化体系存在下包含至少一个氢化氰化阶段,以及 任选的路易斯酸型助催化剂包括通过蒸馏在该方法中使用的反应物或由包含所述催化体系的介质通过反应形成的化合物的至少一个阶段分离。

    Process for the hydrocyanation of unsaturated compounds
    5.
    发明申请
    Process for the hydrocyanation of unsaturated compounds 有权
    不饱和化合物的氢化方法

    公开(公告)号:US20070155979A1

    公开(公告)日:2007-07-05

    申请号:US10556628

    申请日:2004-05-07

    IPC分类号: C07C255/06 C07C253/10

    CPC分类号: C07C253/34 C07C255/04

    摘要: The present invention relates to a process for the hydrocyanation of unsaturated compounds to unsaturated mononitrile compounds or to dinitrile compounds; It relates more particularly to a process for the manufacture of dinitriles by double hydrocyanation of diolefins, such as butadiene, comprising a recovery and separation of the catalytic system. The process for the manufacture of dinitriles of the invention by hydrocyanation of unsaturated compounds, comprising at least one stage of hydrocyanation in the presence of a catalytic system comprising an organometallic complex formed by one or more monodentate organophosphite ligands and one or more bidentate organophosphorus ligands and optionally a promoter of Lewis acid type, comprises at least one stage of separation by distillation of a reactant used in the process or of a compound formed by the reaction from a medium comprising the said catalytic system.

    摘要翻译: 本发明涉及不饱和化合物氢化成不饱和单腈化合物或二腈化合物的方法; 更具体地涉及通过二烯烃如丁二烯的双氢氰化制备二腈的方法,其包括催化体系的回收和分离。 通过氢化不饱和化合物的方法制备本发明的二腈的方法,该方法在包含由一个或多个单齿有机亚磷酸酯配体和一个或多个二齿有机磷配体形成的有机金属络合物的催化体系存在下包含至少一个氢化氰化阶段,以及 任选的路易斯酸型助催化剂包括通过蒸馏在该方法中使用的反应物或由包含所述催化体系的介质通过反应形成的化合物的至少一个阶段进行分离。

    Method of producing dinitrile compounds
    6.
    发明授权
    Method of producing dinitrile compounds 有权
    二腈化合物的制备方法

    公开(公告)号:US08373001B2

    公开(公告)日:2013-02-12

    申请号:US10544953

    申请日:2004-01-22

    IPC分类号: C07C253/10 C07C255/04

    CPC分类号: C07C253/10 C07C255/04

    摘要: The present invention relates to a process for the manufacture of compounds comprising two nitrile functional groups. It relates more particularly to a process for the manufacture of dinitrile compounds from compounds comprising a nitrile functional group and an ethylenic unsaturation in the presence of a catalytic system comprising an organometallic complex and a cocatalyst of the Lewis acid type. The process of the invention comprises a stage of treatment of the reaction medium resulting from the hydrocyanation which makes it possible to extract and recover the metal element of the Lewis acid.

    摘要翻译: 本发明涉及一种制备包含两个腈官能团的化合物的方法。 更具体地涉及在包含有机金属络合物和路易斯酸型助催化剂的催化体系的存在下,由包含腈官能团和烯属不饱和键的化合物制备二腈化合物的方法。 本发明的方法包括由氢氰化反应产生的反应介质的处理阶段,其可提取和回收路易斯酸的金属元素。

    Hydrogen generating system and hydrodehalogenation method
    7.
    发明授权
    Hydrogen generating system and hydrodehalogenation method 失效
    氢发生系统和加氢脱卤法

    公开(公告)号:US07632483B2

    公开(公告)日:2009-12-15

    申请号:US10451427

    申请日:2001-12-21

    IPC分类号: C01B3/08

    摘要: The invention concerns a hydrogen generating system, characterized in that it combines a water-corrodible metal, an inorganic material, said material having a specific surface capable of fixing the oxide and/or hydroxide form(s) of said metals generated during corrosion. The invention also concerns a method for generating hydrogen and its uses, in particular in a hydrodehalogenation process of halogenated organic compounds present in aqueous media to be purified.

    摘要翻译: 本发明涉及一种氢气发生系统,其特征在于它结合了水可腐蚀金属,无机材料,所述材料具有能够固化在腐蚀过程中产生的所述金属的氧化物和/或氢氧化物形式的比表面。 本发明还涉及产生氢气的方法及其用途,特别是在待纯化的水性介质中存在的卤代有机化合物的加氢脱卤过程中。