Separation of Nickel(0) Complexes and Phosphorus-Containing Ligands from Nitrile Mixtures
    12.
    发明申请
    Separation of Nickel(0) Complexes and Phosphorus-Containing Ligands from Nitrile Mixtures 审中-公开
    从腈混合物中分离镍(0)络合物和含磷配体

    公开(公告)号:US20080281119A1

    公开(公告)日:2008-11-13

    申请号:US10586493

    申请日:2005-01-27

    IPC分类号: C07C253/34

    CPC分类号: C07C253/34 C07C255/04

    摘要: A process for extractively removing nickel(0) complexes having phosphorus ligands and/or free phosphorus ligands from a reaction effluent of a hydrocyanation of unsaturated mononitriles to dinitriles by extraction by means of a hydrocarbon, a phase separation of the hydrocarbon and of the reaction effluent into two phases being effected at a temperature T (in ° C.),wherein the content of nickel(0) complexes having phosphorus ligands and/or free phosphorus ligands in the reaction effluent of the hydrocyanation, depending on the temperature T, is at least y % by weight and, irrespective of the temperature T, is a maximum of 60% by weight, where the numerical value of the minimum content y is given by the equation y=0.5·T+20 and T is to be used in the equation as a dimensionless numerical value.

    摘要翻译: 一种通过烃的提取将含有磷配体和/或游离磷配位体的镍(0)络合物从不饱和单腈的氢化氰化反应流出物萃取到二腈的方法,烃和反应流出物的相分离 在温度T(℃)下进行两相,其中根据温度T,氢氰化反应流出物中具有磷配体和/或游离磷配体的镍(0)络合物的含量在 最小含量y的数值由等式<?in-line-formula description =“在线式 “end =”lead“?> y = 0.5.T + 20 <?in-line-formula description =”In-line Formulas“end =”tail“?>而T在方程中用作无量纲数字 值。

    Method for producing 2,2'-dihydroxy-biphenyls
    14.
    发明申请
    Method for producing 2,2'-dihydroxy-biphenyls 审中-公开
    制备2,2'-二羟基 - 联苯的方法

    公开(公告)号:US20060252969A1

    公开(公告)日:2006-11-09

    申请号:US10558400

    申请日:2004-06-02

    IPC分类号: C07C39/12

    CPC分类号: C07C39/15 C07C37/11

    摘要: The invention is a process for preparing tetraalkyl-substituted biphenol which comprises reacting a 2,4- or 2,6-dialkyl substituted phenol in which the alkyl groups contain 1 to 6 carbon atoms with a peroxidase enzyme in the presence of a peroxide in an aqueous medium to yield a tetraalkyl-substituted biphenol by oxidative coupling of the 2,4- or 2,6-dialkyl substituted phenol, or yielding a tetra-alkyl substituted quinone, and reducing the quinone to obtain a tetraalkyl-substituted biphenol. The invention further includes a process for preparing a tetraaryl-substituted biphenol in which the aryl groups contain 6 to 10 carbon atoms which comprises racting a 2,4 or 2,6 diarylphenol with a peroxidase enzyme to yield a tetraaryl-substituted biphenol. A process for reducing a tetraalkyl-substituted quinone to corresponding tetraalkyl-substituted biphenol which comprises reducing the quinone with a phenol in an aqueous medium at a temperature of about 60° to 120° C. is also included.

    摘要翻译: 本发明是一种制备四烷基取代的联苯酚的方法,该方法包括在其中含有1至6个碳原子的烷基的2,4-或2,6-二烷基取代的苯酚与过氧化物酶在过氧化物存在下反应 水性介质,通过2,4-或2,6-二烷基取代酚的氧化偶合得到四烷基取代的联苯酚,或得到四烷基取代的醌,还原醌以得到四烷基取代的联苯酚。 本发明还包括一种制备四芳基取代的联苯酚的方法,其中芳基含有6至10个碳原子,其包括用过氧化物酶将2,4或2,6-二芳基苯酚反应以产生四芳基取代的联苯酚。 还包括将四烷基取代的醌还原成相应的四烷基取代的联苯的方法,其包括在约60-120℃的温度下在含水介质中用苯酚还原醌。

    Method for Producing Linear Pentenenitrile
    16.
    发明申请
    Method for Producing Linear Pentenenitrile 审中-公开
    生产线性戊烯腈的方法

    公开(公告)号:US20080281120A1

    公开(公告)日:2008-11-13

    申请号:US10586470

    申请日:2005-01-27

    IPC分类号: C07C255/00

    摘要: A process is described for preparing 3-pentenenitrile, characterized by the following process steps: (a) isomerizing a reactant stream which comprises 2-methyl-3-butenenitrile over at least one dissolved or dispersed isomerization catalyst to give a stream 1 which comprises the at least one isomerization catalyst, 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, (b) distilling stream 1 to obtain a stream 2 as the top product which comprises 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, and a stream 3 as the bottom product which comprises the at least one isomerization catalyst, (c) distilling stream 2 to obtain a stream 4 as the top product which, compared to stream 2, is enriched in (Z)-2-methyl-2-butenenitrile, based on the sum of all pentenenitriles in stream 2, and a stream 5 as the bottom product which, compared to stream 2, is enriched in 3-pentenenitrile and 2-methyl-3-butenenitrile, based on the sum of all pentenenitriles in stream 2, (d) distilling stream 5 to obtain a stream 6 as the bottom product which comprises 3-pentenenitrile and a stream 7 as the top product which comprises 2-methyl-3-butenenitrile.

    摘要翻译: 描述了制备3-戊烯腈的方法,其特征在于以下方法步骤:(a)在至少一种溶解或分散的异构化催化剂上异构化包含2-甲基-3-丁烯腈的反应物流,得到流1,其包含 至少一种异构化催化剂,2-甲基-3-丁烯腈,3-戊烯腈和(Z)-2-甲基-2-丁烯腈,(b)蒸馏物流1,得到作为顶部产物的物流2,其包含2-甲基 -3-丁烯腈,3-戊烯腈和(Z)-2-甲基-2-丁烯腈,以及作为底部产物的料流3,其包含至少一种异构化催化剂,(c)蒸馏物流2以获得物流4, 与流2相比,基于流2中的所有五烯丙烯的总和和作为底部产物的流5,与流2相比富含(Z)-2-甲基-2-丁烯腈的顶部产物与流2相比较 ,富含3-戊烯腈和2-甲基-3-丁烯腈,基于所有pentenenit (d)蒸馏流5以获得作为底部产物的料流6,其包含3-戊烯腈和作为顶部产物的料流7,其包含2-甲基-3-丁烯腈。