Method for Producing Linear Pentenenitrile
    1.
    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。

    METHOD FOR PRODUCING LINEAR PENTENENITRILE
    2.
    发明申请
    METHOD FOR PRODUCING LINEAR PENTENENITRILE 有权
    生产线性胆固醇的方法

    公开(公告)号:US20120178958A1

    公开(公告)日:2012-07-12

    申请号:US13361783

    申请日:2012-01-30

    IPC分类号: C07C253/30

    摘要: A method for producing 3-pentenenitrile is provided that includes: (a) isomerizing an educt stream containing 2-methyl-3-butenenitrile on at least one dissolved or dispersed isomerisation catalyst to form a stream (1), which contains the isomerisation catalyst(s), 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile; (b) distilling the stream (1) to obtain a stream (2) as the overhead product, which contains 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile and a stream (3) as the bottom product, which contains the isomerisation catalyst(s); (c) distilling the stream (2) to obtain a stream (4) as the overhead product, which is enriched with (Z)-2-methyl-2-butenenitrile in comparison to stream (2), and a stream (5) as the bottom product, which is enriched with 3-pentenenitrile and 2-methyl-3-butenenitrile in comparison to stream (2); (d) distilling stream (5) to obtain a stream (6) as the bottom product, which contains 3-pentenenitrile and a stream (7) as the head product containing 2-methyl-3-butenenitrile.

    摘要翻译: 提供了一种制备3-戊烯腈的方法,其包括:(a)在至少一种溶解或分散的异构化催化剂上异构化含有2-甲基-3-丁烯腈的流出物流以形成含有异构化催化剂( s),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)以获得作为塔顶产物的物流(2),其含有2-甲基-3-丁烯腈,3-戊烯腈和(Z)-2-甲基-2-丁烯腈和流( 3)作为含有异构化催化剂的底部产物; (c)与料流(2)相比,蒸馏物流(2)以获得作为塔顶产物的物流(4),其与(2)相比富含(Z)-2-甲基-2-丁烯腈, 作为与料流(2)相比富含3-戊烯腈和2-甲基-3-丁烯腈的底部产物; (d)蒸馏物流(5),得到作为底物的物流(6),其含有3-戊烯腈和作为含有2-甲基-3-丁烯腈的头部产物的物流(7)。

    Method for producing linear pentenenitrile
    3.
    发明授权
    Method for producing linear pentenenitrile 有权
    线性戊烯腈的制备方法

    公开(公告)号:US08410299B2

    公开(公告)日:2013-04-02

    申请号:US13361783

    申请日:2012-01-30

    IPC分类号: C07C253/30

    摘要: A method for producing 3-pentenenitrile is provided that includes: (a) isomerizing an educt stream containing 2-methyl-3-butenenitrile on at least one dissolved or dispersed isomerization catalyst to form a stream (1), which contains the isomerization catalyst(s), 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile; (b) distilling the stream (1) to obtain a stream (2) as the overhead product, which contains 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile and a stream (3) as the bottom product, which contains the isomerization catalyst(s); (c) distilling the stream (2) to obtain a stream (4) as the overhead product, which is enriched with (Z)-2-methyl-2-butenenitrile in comparison to stream (2), and a stream (5) as the bottom product, which is enriched with 3-pentenenitrile and 2-methyl-3-butenenitrile in comparison to stream (2); (d) distilling stream (5) to obtain a stream (6) as the bottom product, which contains 3-pentenenitrile and a stream (7) as the head product containing 2-methyl-3-butenenitrile.

    摘要翻译: 提供了一种制备3-戊烯腈的方法,其包括:(a)在至少一种溶解或分散的异构化催化剂上使含有2-甲基-3-丁烯腈的流出物异构化以形成含有异构化催化剂( s),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)以获得作为塔顶产物的物流(2),其含有2-甲基-3-丁烯腈,3-戊烯腈和(Z)-2-甲基-2-丁烯腈和流( 3)作为含有异构化催化剂的底部产物; (c)与料流(2)相比,蒸馏物流(2)以获得作为塔顶产物的物流(4),其与(2)相比富含(Z)-2-甲基-2-丁烯腈, 作为与料流(2)相比富含3-戊烯腈和2-甲基-3-丁烯腈的底部产物; (d)蒸馏物流(5),得到作为底物的物流(6),其含有3-戊烯腈和作为含有2-甲基-3-丁烯腈的头部产物的物流(7)。

    Separation of Nickel(0) Complexes and Phosphorus-Containing Ligands from Nitrile Mixtures
    4.
    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。

    PROCESS FOR PREPARING FORMIC ACID BY REACTING CARBON DIOXIDE WITH HYDROGEN
    7.
    发明申请
    PROCESS FOR PREPARING FORMIC ACID BY REACTING CARBON DIOXIDE WITH HYDROGEN 审中-公开
    通过用氢气反应二氧化碳制备形式酸的方法

    公开(公告)号:US20120157711A1

    公开(公告)日:2012-06-21

    申请号:US13330974

    申请日:2011-12-20

    IPC分类号: C07C53/02

    摘要: The present invention relates to a process for preparing formic acid by reacting carbon dioxide (1) with hydrogen (2) in a hydrogenation reactor (I) in the presence of a catalyst comprising an element of group 8, 9 or 10 of the Periodic Table, a tertiary amine comprising at least 12 carbon atoms per molecule and a polar solvent comprising one or more monoalcohols selected from among methanol, ethanol, propanols and butanols, to form formic acid/amine adducts as intermediates which are subsequently thermally dissociated, where a tertiary amine having a boiling point which is at least 5° C. higher than that of formic acid is used and a reaction mixture comprising the polar solvent, the formic acid/amine adducts, the tertiary amine and the catalyst is formed in the reaction in the hydrogenation reactor (I) and is discharged from the reactor as output (3).

    摘要翻译: 本发明涉及一种通过使二氧化碳(1)与氢(2)在氢化反应器(I)中在含有周期表第8,9或10族元素的催化剂存在下反应来制备甲酸的方法 ,每分子含有至少12个碳原子的叔胺和包含一种或多种选自甲醇,乙醇,丙醇和丁醇的一元醇的极性溶剂,以形成甲酸/胺加合物作为随后热解离的中间体,其中第三 使用沸点比甲酸高至少5℃的胺,并且在反应中形成包含极性溶剂,甲酸/胺加合物,叔胺和催化剂的反应混合物 氢化反应器(I),并作为输出(3)从反应器排出。

    Method for the separation of ascorbic acid from a polar solvent containing ascorbic acid and 2-keto-L-gulonic acid
    8.
    发明授权
    Method for the separation of ascorbic acid from a polar solvent containing ascorbic acid and 2-keto-L-gulonic acid 失效
    从含抗坏血酸和2-酮-L-古洛糖酸的极性溶剂中分离抗坏血酸的方法

    公开(公告)号:US07696360B2

    公开(公告)日:2010-04-13

    申请号:US10515625

    申请日:2003-07-07

    IPC分类号: C07D307/62

    CPC分类号: C07D307/62 Y02P20/582

    摘要: The invention relates to a method for the separation of ascorbic acid from a mixture containing ascorbic acid and 2-keto-L-gulonic acid in a polar, preferably aqueous solvent, by means of liquid/liquid extraction using an amide. The method preferably also comprises steps for the back-extraction of the ascorbic acid, recycling of the extraction solvent and/or the back extraction solvent and for isolation of the ascorbic acid from the back extraction solvent. The invention further relates to a method for the production of ascorbic acid from KGA and isolation of the ascorbic acid so produced.

    摘要翻译: 本发明涉及通过使用酰胺的液/液萃取在极性优选含水溶剂中从含有抗坏血酸和2-酮-L-古洛糖酸的混合物中分离抗坏血酸的方法。 该方法优选还包括用于反萃取抗坏血酸的步骤,提取溶剂和/或反萃取溶剂的再循环以及用于从反萃取溶剂中分离抗坏血酸的步骤。 本发明还涉及从KGA生产抗坏血酸并分离如此生产的抗坏血酸的方法。

    PROCESS FOR PURIFYING AQUEOUS GLYOXAL SOLUTIONS
    10.
    发明申请
    PROCESS FOR PURIFYING AQUEOUS GLYOXAL SOLUTIONS 有权
    净化水性溶液的方法

    公开(公告)号:US20120116129A1

    公开(公告)日:2012-05-10

    申请号:US13251713

    申请日:2011-10-03

    IPC分类号: C07C45/80

    CPC分类号: C07C45/80 C07C47/127

    摘要: A process for purifying an aqueous glyoxal solution comprising at least one acid by extractive acid removal, comprisingi) mixing and dispersion of the aqueous glyoxal solution with an ion exchanger solution comprising a tertiary amine and an organic solvent,ii) phase separation and removal of the ion exchanger solution laden with the acid from the aqueous glyoxal solution, andiii) regeneration of the ion exchanger solution by contacting with a basic compound for neutralization of the acid and removal of the basic compound,iv) mixing and dispersion of the ion exchanger solution with water to obtain a dispersion of water and ion exchanger solution,v) Phase separation and removal of the aqueous phase from the ion exchanger solution in such a way that the content of the aqueous phase of the regenerated ion exchanger solution is

    摘要翻译: 一种用于通过除去酸去除包含至少一种酸的乙二醛水溶液的方法,包括:i)将乙二醛水溶液与包含叔胺和有机溶剂的离子交换剂溶液混合并分散,ii)相分离和除去 所述离子交换剂溶液含有来自乙二醛水溶液的酸,和iii)通过与用于中和酸和碱性化合物的去除的碱性化合物接触来再生离子交换剂溶液,iv)离子交换剂的混合和分散 溶液,以获得水和离子交换剂溶液的分散体,v)从离子交换剂溶液中相分离和除去水相,使得再生离子交换剂溶液的水相含量<1% 并将离子交换剂溶液再循环到步骤i)中。