PROCESS FOR PREPARING LACTAMS
    21.
    发明申请
    PROCESS FOR PREPARING LACTAMS 失效
    制备纱线的方法

    公开(公告)号:US20120095212A1

    公开(公告)日:2012-04-19

    申请号:US13260268

    申请日:2010-04-27

    Inventor: Philippe Leconte

    CPC classification number: C07D201/08 C07D223/10

    Abstract: A method for preparing lactams by cyclizing hydrolysis of a corresponding aminonitrile is described. A method for manufacturing a lactam by reacting an aminonitrile with water in the presence of a catalyst involving placing the water and the aminonitrile in contact in vapor phase, passing the mixture of vapors through a bed of catalyst arranged in at least one tube forming a reaction chamber and recovering the lactam at the outlet of the tube is also described.

    Abstract translation: 描述了通过环化相应的氨基腈的水解制备内酰胺的方法。 一种在催化剂存在下使氨基腈与水反应的方法,所述催化剂涉及使水和氨基腈气相接触,使蒸汽混合物通过排列在形成反应的至少一个管中的催化剂床 还描述了在管的出口处回收内酰胺的腔室。

    Conversion of nitrile compounds into carboxylic acids and corresponding esters thereof
    22.
    发明授权
    Conversion of nitrile compounds into carboxylic acids and corresponding esters thereof 有权
    腈化合物转化成羧酸及其相应的酯

    公开(公告)号:US08119838B2

    公开(公告)日:2012-02-21

    申请号:US12308176

    申请日:2007-05-25

    Abstract: Hydrocarbon-based compounds containing at least one nitrile function are converted into compounds containing at least one carboxylic function, and into ester compounds from the carboxylic compounds thus obtained; such conversion entails reacting the nitrile compound with a hydroxyl basic compound in solution in a solvent at a temperature of between 80 and 150° C., in eliminating the ammonia formed, in reacting the salt obtained with a mineral acid, and then in recovering the compound containing at least one carboxylic function and, optionally, esterifying the acids obtained by reaction with an alcohol.

    Abstract translation: 含有至少一个腈官能团的烃基化合物被转化成含有至少一个羧酸官能团的化合物,并由如此获得的羧酸化合物转化为酯化合物; 这种转化需要使腈化合物与溶剂中的羟基碱性化合物在溶剂中在80-150℃的温度下反应,以消除所形成的氨与无机酸反应获得的盐,然后回收 含有至少一个羧酸官能团的化合物,和任选地,通过与醇反应获得的酸酯化。

    CONVERSION OF NITRILE COMPOUNDS INTO CORRESPONDING CARBOXYLIC ACIDS AND ESTERS
    23.
    发明申请
    CONVERSION OF NITRILE COMPOUNDS INTO CORRESPONDING CARBOXYLIC ACIDS AND ESTERS 有权
    氮化合物转化成相应的羧酸和酯类

    公开(公告)号:US20100145091A1

    公开(公告)日:2010-06-10

    申请号:US12516042

    申请日:2007-11-23

    Abstract: Hydrocarbon compounds having at least one nitrile function are converted into compounds having at least one carboxylic function by hydrating the nitrile functions into amide functions by reaction with water in the presence of a strong inorganic acid, and then hydrolyzing the amide functions into carboxylic functions by reaction with water and a strong inorganic acid; the carboxylic compounds thus obtained can be esterified into diesters, advantageously diester solvents.

    Abstract translation: 具有至少一个腈官能团的烃化合物通过在强无机酸存在下与水反应将腈官能团化合成酰胺官能团,然后通过反应将酰胺官能团水解成羧基官能团,将其转化成具有至少一个羧酸官能团的化合物 与水和强无机酸; 由此得到的羧酸化合物可酯化成二酯,有利的是二酯溶剂。

    Process for the hydrocyanation of unsaturated compounds
    24.
    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

    CPC classification number: C07C253/34 C07C255/04

    Abstract: 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.

    Abstract translation: 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。

    Method for the Production of Cyclohexanone
    25.
    发明申请
    Method for the Production of Cyclohexanone 失效
    环己酮生产方法

    公开(公告)号:US20080064902A1

    公开(公告)日:2008-03-13

    申请号:US11792373

    申请日:2005-11-30

    Abstract: The invention relates to a method for the preparation of cyclohexanone from cyclohexane. The invention relates more particularly to a method for the production of cyclohexane whose impurity content enables cyclohexanone to be used as a raw material for the production of e-caprolactam. The inventive method consists in treating the mixture of cyclohexanol/cyclohexanone arising from oxidation of cyclohexane by oxygen in a dehydrogenation stage in order to transform cyclohexanol into cyclohexanone and the impurities present such as cyclopentenal. The inventive method makes it possible to obtain highly pure cyclohexanone which is compatible when used as a raw material in the synthesis of e-caprolactam.

    Abstract translation: 本发明涉及从环己烷制备环己酮的方法。 本发明更具体地涉及一种生产环己烷的方法,其中杂质含量使得环己酮可用作生产ε-己内酰胺的原料。 本发明的方法是在脱氢阶段用氧处理由环己烷氧化产生的环己醇/环己酮的混合物,以便将环己醇转化成环己酮和存在的杂质如环戊烯醛。 本发明的方法使得可以获得在用作合成ε-己内酰胺的原料时相容的高纯度环己酮。

    Process for the Preparation of Dinitriles
    26.
    发明申请
    Process for the Preparation of Dinitriles 有权
    制备二腈的方法

    公开(公告)号:US20070260086A1

    公开(公告)日:2007-11-08

    申请号:US10556629

    申请日:2004-05-07

    CPC classification number: C07C253/10 C07C253/34 Y02P20/584 C07C255/04

    Abstract: 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.

    Abstract translation: 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 for the hydrocyanation of unsaturated compounds
    27.
    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

    CPC classification number: C07C253/34 C07C255/04

    Abstract: 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.

    Abstract translation: 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 for purifying adipic acid in water
    28.
    发明授权
    Method for purifying adipic acid in water 失效
    水中己二酸的纯化方法

    公开(公告)号:US06222069B1

    公开(公告)日:2001-04-24

    申请号:US09194924

    申请日:1999-03-17

    CPC classification number: C07C51/43 C07C55/14

    Abstract: The invention discloses a method for purifying adipic acid in water. More precisely it discloses an improvement in adipic acid crystallization or recrystallization in water, characterised in that the said crystallization or recrystallization is effected in presence of a strong proton acid and/or in the presence of carbon monoxide. This crystallization or recrystallization particularly enables the content of metal catalyst traces in the adipic acid to be reduced.

    Abstract translation: 本发明公开了一种在水中纯化己二酸的方法。 更准确地说,它公开了己二酸结晶或水中的重结晶的改进,其特征在于所述结晶或重结晶在强质子酸存在下和/或在一氧化碳的存在下进行。 这种结晶或重结晶特别使得能够降低己二酸中的金属催化剂痕量的含量。

    Preparation of carboxylic acid anhydrides
    30.
    发明授权
    Preparation of carboxylic acid anhydrides 失效
    羧酸酐的制备

    公开(公告)号:US4500473A

    公开(公告)日:1985-02-19

    申请号:US478033

    申请日:1983-03-23

    CPC classification number: C07C51/56

    Abstract: Carboxylic acid anhydrides of the formula RCO--O--COR', e.g., acetic anhydride, are facilely prepared by reacting, in an essentially anhydrous, liquid phase containing an aprotic organic solvent, (i) a compound of the formula RX, (ii) a carboxylate of the formula (R'COO.sup.-).sub.n A.sup.n+, and (iii) carbon monoxide, said reaction being carried out in the presence of a catalytically effective amount of a salt of cobalt tetracarbonyl halide, at a temperature ranging from about 0.degree. to 200.degree. C. and under a pressure which is less than or equal to about 600 bars.

    Abstract translation: 通过在基本上无水的含有非质子有机溶剂的液相中反应制备式RCO-O-COR'的羧酸酐,例如乙酸酐,(i)式RX的化合物,(ii) 式(R'COO-)nAn +的羧酸酯和(iii)一氧化碳,所述反应在催化有效量的四羰基钴卤化物的存在下进行,温度范围为约0℃至 并且在小于或等于约600巴的压力下。

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