Process for purifying lactams
    2.
    发明授权
    Process for purifying lactams 失效
    内酰胺纯化方法

    公开(公告)号:US07270752B2

    公开(公告)日:2007-09-18

    申请号:US10169111

    申请日:2000-12-27

    IPC分类号: B01D9/02 B01D9/00 C07D223/10

    CPC分类号: C07D209/16

    摘要: A process is described for purifying lactams, in particular the lactams obtained by cyclizing hydrolysis of an aminoalkylnitrile, and more particularly to the purification by crystallization of ε-caprolactam obtained by cyclizing hydrolysis of aminocapronitrile. This crystallization is carried out on the cyclization reaction medium after hydrogenation, removal of volatile compounds, and treatment with an ion-exchange resin.

    摘要翻译: 描述了用于纯化内酰胺的方法,特别是通过环化氨基烷基腈的水解获得的内酰胺,更具体地涉及通过环化氨基己腈的水解获得的ε-己内酰胺的结晶来纯化。 在环化反应介质中进行结晶,氢化后除去挥发性化合物,并用离子交换树脂进行处理。

    Process of synthesis of compounds having nitrile functions from ethylenically unsaturated compounds
    3.
    发明申请
    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:US20040122251A1

    公开(公告)日:2004-06-24

    申请号:US10353912

    申请日:2003-01-30

    IPC分类号: C07C253/10

    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。

    Method of producing nitrile compounds
    4.
    发明授权
    Method of producing nitrile compounds 失效
    腈化合物的制备方法

    公开(公告)号:US08039660B2

    公开(公告)日:2011-10-18

    申请号:US12244233

    申请日:2008-10-02

    IPC分类号: C07C253/10 C07C255/03

    CPC分类号: C07C253/10 C07C255/04

    摘要: The present invention relates to the manufacture of nitrile compounds from unsaturated organic compounds by reaction with hydrogen cyanide. It relates more particularly to the manufacture of nitrile compounds of use in the synthesis of adiponitrile, an important chemical intermediate in the manufacture of major chemical compounds, such as hexamethylenediamine and ε-caprolactam. The invention provides a process for the manufacture of organic compounds comprising at least one nitrile functional group by carrying out a hydrocyanation reaction between hydrogen cyanide and an organic compound comprising at least one ethylenic unsaturation. This reaction is carried out in the presence of a catalytic system comprising a metal element chosen from the group consisting of nickel, platinum and palladium and an organophosphorus ligand, the reaction medium additionally comprising an ionic liquid in the liquid state at least at the temperature at which the hydrocyanation reaction is carried out.

    摘要翻译: 本发明涉及通过与氰化氢反应从不饱和有机化合物制备腈化合物。 更具体地涉及用于合成己二腈的腈化合物的制备,其是主要化学化合物如六亚甲基二胺和ε-己内酰胺的制造中的重要化学中间体。 本发明提供一种制备包含至少一个腈官能团的有机化合物的方法,该方法是通过在氰化氢与包含至少一个烯属不饱和键的有机化合物之间进行氢氰化反应。 该反应在包含选自镍,铂和钯的金属元素和有机磷配体的催化体系的存在下进行,所述反应介质另外包含处于液态的离子液体,至少在 进行氢化反应。

    Method of oxidising hydrocarbons to acids
    5.
    发明授权
    Method of oxidising hydrocarbons to acids 失效
    将烃氧化成酸的方法

    公开(公告)号:US07507856B2

    公开(公告)日:2009-03-24

    申请号:US10485468

    申请日:2002-07-15

    IPC分类号: C07C51/16 C07C61/00 C07C51/31

    摘要: The present invention relates to a process for the oxidation of hydrocarbons, in particular of branched or unbranched saturated aliphatic hydrocarbons, of cycloaliphatic or alkylaromatic hydrocarbons or of alcohols and/or ketones, to acid or polyacid compounds.It relates more particularly to the oxidation, by an oxidizing agent comprising molecular oxygen, of cyclohexane and/or of cyclohexanol and/or cyclohexanone to adipic acid, in the presence of an aromatic organic acid and a manganese-based catalyst. The yield and selectivity for adipic acid are of a high level with respect to those obtained with other solvents and catalysts.

    摘要翻译: 本发明涉及一种将脂环族或烷基芳烃或醇和/或酮的烃类,特别是支链或非支链饱和脂族烃氧化成酸或多元酸化合物的方法。 其更具体地涉及在芳族有机酸和锰基催化剂存在下,通过包含分子氧的环己烷和/或环己醇和/或环己酮与己二酸的氧化反应。 对于己二酸的产率和选择性与使用其它溶剂和催化剂得到的产率和选择性相当。

    Method for purifying lactams
    6.
    发明授权
    Method for purifying lactams 有权
    内酰胺纯化方法

    公开(公告)号:US07384518B2

    公开(公告)日:2008-06-10

    申请号:US10296512

    申请日:2001-05-28

    摘要: A method and a plant are disclosed for purifying lactams, particularly lactams obtained by cyclizing hydrolysis of aminonitrile. The purification of ε-caprolactam obtained by cyclizing hydrolysis of aminocapronitrile is described which includes eliminating the ammonia from the reaction medium of the hydrolysis, then recovering the lactam from said medium in purified form. The recovery is carried out by performing at least a distillation of the lactam in the presence of a base producing optionally a fronts fraction comprising compounds more volatile than the lactam, a fraction comprising the lactam to be recovered to the degree of desired purity and a distillation tails comprising the lactam and compounds less volatile than the lactam. The distillation tails are treated by various processes such as evaporation in thin layers to recover the major part of the caprolactam and recycling the latter in the purification process. The method and plant enables a high rate of recovery of the caprolactam contained in the hydrolysis medium, while observing required criteria of purity.

    摘要翻译: 公开了一种用于纯化内酰胺,特别是通过环化氨基腈水解获得的内酰胺的方法和设备。 描述了通过环化氨基己腈水解获得的ε-己内酰胺的纯化,其包括从水解反应介质中除去氨,然后以纯化形式从所述介质中回收内酰胺。 回收是通过在碱的存在下至少进行内消旋而进行的,所述碱生产任选地含有比内酰胺更易挥发的化合物的前列馏分,包含待回收的内酰胺至所需纯度的馏分和蒸馏 尾部包含内酰胺和化合物比内酰胺更不易挥发。 蒸馏尾部通过各种方法处理,例如在薄层中蒸发以回收大部分己内酰胺并在纯化过程中回收己内酰胺。 该方法和设备能够在观察所需的纯度标准的同时使包含在水解介质中的己内酰胺的回收率高。

    Method for preparing carboxylic acids by palladium carbonylation
    7.
    发明授权
    Method for preparing carboxylic acids by palladium carbonylation 失效
    通过羰基化羰基制备羧酸的方法

    公开(公告)号:US06946574B2

    公开(公告)日:2005-09-20

    申请号:US10451662

    申请日:2001-12-21

    CPC分类号: C07C51/14 C07C57/03

    摘要: The present invention relates to a process for the preparation of β- or γ-unsaturated or saturated carboxylic acids.It relates more particularly to the hydroxycarbonylation of an organic compound comprising a conjugated unsaturation, such as butadiene, by the action of carbon monoxide and water in the presence of a palladium-based catalyst. The carboxylic acids thus obtained are preferably pentenoic acids. According to the invention, the reaction medium after the end of the hydroxycarbonylation stage is treated with hydrogen to reduce the palladium present in the 2+ oxidation state to palladium in the zero oxidation state and the precipitated palladium is recovered.

    摘要翻译: 本发明涉及一种制备β-或γ-不饱和或饱和羧酸的方法。 更具体地涉及在钯基催化剂存在下,通过一氧化碳和水的作用,包括共轭不饱和键的有机化合物如丁二烯的羟基羰基化。 由此得到的羧酸优选为戊烯酸。 根据本发明,羟基羰基化阶段结束后的反应介质用氢气处理以将存在于2+氧化态的钯以零氧化态还原成钯,并回收沉淀的钯。