Supported catalyst for the selective hydrogenation of alkynes and dienes
    1.
    发明授权
    Supported catalyst for the selective hydrogenation of alkynes and dienes 失效
    用于炔和二烯的选择性氢化的负载型催化剂

    公开(公告)号:US07582805B2

    公开(公告)日:2009-09-01

    申请号:US11670339

    申请日:2007-02-01

    IPC分类号: C07C7/163 C07C7/167

    摘要: The invention relates to a process for the selective hydrogenation of alkynes and dienes in C2-C5+-olefin mixtures,—in C2- or C3-streams of the olefin preparation by cracking. The method comprises conducting the hydrogenation in the presence of a catalyst particle comprising (a) a metal of the tenth group of the Periodic Table, (b) a metal of the eleventh group of the Periodic Table and (c) optionally a compound of a metal of the first or second group of the Periodic Table. Components (a) and (b), and optionally (c), are applied to a support selected from the group consisting of silica, titanium dioxide, zirconium oxides, spinels, zinc aluminates, zinc titanate, aluminosilicates and mixtures thereof. The metal of the eleventh group is distributed homogeneously over the cross-section of the catalyst particle, and the metal of the tenth group is present in an edge layer close to the surface of the catalyst particle.

    摘要翻译: 本发明涉及一种在C2-C5 + - 烯烃混合物中选择氢化炔烃和二烯烃的方法,在烯烃制备物的C2-或C3-物流中裂解。 该方法包括在催化剂颗粒的存在下进行氢化,所述催化剂颗粒包含(a)周期表第十组的金属,(b)周期表第十一基团的金属和(c)任选的 元素周期表第一组或第二组的金属。 组分(a)和(b)和任选的(c))应用于选自二氧化硅,二氧化钛,氧化锆,尖晶石,铝酸锌,钛酸锌,铝硅酸盐及其混合物的载体。 第十一组金属在催化剂颗粒的横截面上均匀分布,第十组的金属存在于靠近催化剂颗粒表面的边缘层中。

    Carrier catalytic converter for the selective hydrogenation of alkines and dienes
    2.
    发明授权
    Carrier catalytic converter for the selective hydrogenation of alkines and dienes 失效
    用于烷烃和二烯烃选择性氢化的载体催化转化器

    公开(公告)号:US07256153B2

    公开(公告)日:2007-08-14

    申请号:US10148798

    申请日:2000-12-06

    IPC分类号: B01J21/08 B01J23/44 B01J23/50

    摘要: A catalyst for the selective hydrogenation of alkynes and dienes in C2-C5+-olefin mixtures is described.These catalysts contain (a) a metal of the tenth group of the Periodic Table, (b) a metal of the eleventh group of the Periodic Table and (c) if required, a compound of a metal of the first or second group of the Periodic Table, these metals being applied to a support which is selected from the group consisting of silica, titanium dioxide, zirconium oxides, spinels, zinc aluminates, zinc titanates or mixtures of these substances, and the metal of the eleventh group being distributed homogeneously over the cross section of the catalyst particle and the metal of the tenth group being present in the edge layer close to the surface of the catalyst particle. Such a catalyst is prepared by applying the metal of the eleventh group, preferably during the preparation of the support itself, by impregnation with a solution of a suitable metal salt.

    摘要翻译: 描述了用于C2-C5 + - 烯烃混合物中炔和二烯的选择性氢化的催化剂。 这些催化剂含有(a)元素周期表第十组的金属,(b)元素周期表第十一组的金属和(c)如果需要,可以使用第一组或第二组的金属化合物 周期表中,这些金属被施加到选自二氧化硅,二氧化钛,氧化锆,尖晶石,铝酸锌,钛酸锌或这些物质的混合物的载体上,并且第十一基团的金属均匀地分布在 催化剂颗粒的横截面和第十组的金属存在于靠近催化剂颗粒表面的边缘层中。 这样的催化剂是通过施加第十一基团的金属,优选在制备载体本身期间通过用合适的金属盐的溶液浸渍来制备的。

    Supported Catalyst for the Selective Hydrogenation of Alkynes and Dienes
    3.
    发明申请
    Supported Catalyst for the Selective Hydrogenation of Alkynes and Dienes 失效
    用于烯烃和二烯烃的选择性氢化的支持催化剂

    公开(公告)号:US20070142683A1

    公开(公告)日:2007-06-21

    申请号:US11670339

    申请日:2007-02-01

    IPC分类号: C07C7/167 C07C5/08

    摘要: A catalyst for the selective hydrogenation of alkynes and dienes in C2-C5+-olefin mixtures is described. These catalysts contain (a) a metal of the tenth group of the Periodic Table, (b) a metal of the eleventh group of the Periodic Table and (c) if required, a compound of a metal of the first or second group of the Periodic Table, these metals being applied to a support which is selected from the group consisting of silica, titanium dioxide, zirconium oxides, spinels, zinc aluminates, zinc titanates or mixtures of these substances, and the metal of the eleventh group being distributed homogeneously over the cross section of the catalyst particle and the metal of the tenth group being present in the edge layer close to the surface of the catalyst particle. Such a catalyst is prepared by applying the metal of the eleventh group, preferably during the preparation of the support itself, by impregnation with a solution of a suitable metal salt.

    摘要翻译: 描述了用于C2-C5 + - 烯烃混合物中炔和二烯的选择性氢化的催化剂。 这些催化剂含有(a)元素周期表第十组的金属,(b)元素周期表第十一组的金属和(c)如果需要,可以使用第一组或第二组的金属化合物 周期表中,这些金属被施加到选自二氧化硅,二氧化钛,氧化锆,尖晶石,铝酸锌,钛酸锌或这些物质的混合物的载体上,并且第十一基团的金属均匀地分布在 催化剂颗粒的横截面和第十组的金属存在于靠近催化剂颗粒表面的边缘层中。 这样的催化剂是通过施加第十一基团的金属,优选在制备载体本身期间通过用合适的金属盐的溶液浸渍来制备的。

    Purification of caprolactam
    4.
    发明授权
    Purification of caprolactam 有权
    己内酰胺的纯化

    公开(公告)号:US07217818B2

    公开(公告)日:2007-05-15

    申请号:US10534802

    申请日:2003-11-11

    IPC分类号: C07D201/16

    CPC分类号: C07D201/16 C07D201/08

    摘要: A process for removing high boilers from crude caprolactam which comprises high boilers, caprolactam and in some cases low boilers, and which has been obtained by a) reacting 6-aminocapronitrile with water to give a reaction mixture b) removing ammonia and unconverted water from the reaction mixture to obtain crude caprolactam, which comprises c) feeding the crude caprolactam to a distillation apparatus to obtain a first substream via the top as a product and a second substream via the bottom, by setting the pressure in the distillation in such a way that the bottom temperature does not go below 170° C., and adjusting the second substream in such a way that the caprolactam content of the second substream is not less than 10% by weight, based on the entire second substream.

    摘要翻译: 一种从粗己内酰胺中除去高锅炉的方法,其包括高锅炉,己内酰胺,在某些情况下是低锅炉,并且通过以下方法获得:a)使6-氨基己腈与水反应得到反应混合物; b)除去氨和未转化的水 反应混合物以获得粗己内酰胺,其包括c)将粗己内酰胺加入到蒸馏装置中,通过顶部获得第一子流作为产物,通过底部通过设置第二子流,通过将蒸馏中的压力设定为使得 底部温度不低于170℃,并且调节第二子流,使得第二子流的己内酰胺含量基于整个第二子流不小于10重量%。

    Method for reducing the content of an unsaturated amine in a mixture containing an amino nitrile, a diamine, a dinitrile or mixtures thereof
    8.
    发明授权
    Method for reducing the content of an unsaturated amine in a mixture containing an amino nitrile, a diamine, a dinitrile or mixtures thereof 有权
    降低含氨基腈,二胺,二腈或其混合物的混合物中不饱和胺含量的方法

    公开(公告)号:US07385073B2

    公开(公告)日:2008-06-10

    申请号:US10515281

    申请日:2003-05-21

    IPC分类号: C07C253/34

    CPC分类号: C07C253/34 C07C255/24

    摘要: A process for reducing the level of an aliphatic monounsaturated amine (IV) in a mixture (V) containing an aminonitrile (I) or a diamine (II) or a dinitrile (III) or mixtures thereof as well as said mine (IV) by a) reacting said mixture (V) with an anionic nucleophile (VI) which contains a nucleophilic atom selected from the group consisting of oxygen, nitrogen and sulfur, which is capable of taking up an H+ ion to form an acid having a pKa value in the range from 7 to 11, as measured in water at 25° C., and which has a relative nucleophilicity, as measured in methyl perchlorate/methanol at 25° C., in the range from 3.4 to 4.7 when said nucleophilic atom is oxygen, in the range from 4.5 to 5.8 when said nucleophilic atom is nitrogen, and in the range from 5.5 to 6.8 when said nucleophilic atom is sulfur, in an amount in the range from 0.01 to 10 mol per mole of said amine (IV) in said mixture (V) at a temperature in the range from 50 to 200° C. to obtain a mixture (VII), b) distilling said aminonitrile (I) or said diamine (II) or said dinitrile (III) or mixtures thereof from said mixture (VII) at a temperature in the range from 50 to 200° C. and at a pressure in the range from 0.1 to 100 kPa to obtain a bottom product (VIII), which comprises c) distilling an aminonitrile (I) or diamine (II) or dinitrile (III) or mixtures thereof from said bottom product (VIII) at a temperature which is lower than that chosen in step b).

    摘要翻译: 在含有氨基腈(I)或二胺(II)或二腈(III)或其混合物以及所述矿(IV)的混合物(V)中降低脂族单不饱和胺(IV)的水平的方法, a)使所述混合物(V)与阴离子亲核试剂(VI)反应,所述阴离子亲核试剂(VI)含有选自氧,氮和硫的亲核原子,其能够吸收H + 形成在25℃下在水中测量的具有7至11的pK值的酸,其在25℃下在高氯酸甲酯/甲醇中测得的具有相对亲核性 当所述亲核原子为氧时,在3.4至4.7的范围内,当所述亲核原子为氮时,在4.5至5.8的范围内,当所述亲核原子为硫时在5.5至6.8的范围内,其量为 在所述混合物(V)中在50至200℃的温度范围内每摩尔所述胺(IV)为0.01至10摩尔的范围,以获得混合物 (VII)中,b)在50至200℃的温度下,从所述混合物(VII)中蒸馏所述氨基腈(I)或所述二胺(II)或所述二腈(III)或其混合物, 压力为0.1至100kPa,以获得底部产物(VIII),其包括c)在所述底部产物(VIII)中蒸馏氨基腈(I)或二胺(II)或二腈(III)或其混合物, 温度低于步骤b)中选择的温度。

    Method for purifying caprolactam
    9.
    发明申请
    Method for purifying caprolactam 失效
    己内酰胺纯化方法

    公开(公告)号:US20060090994A1

    公开(公告)日:2006-05-04

    申请号:US10534822

    申请日:2003-11-11

    IPC分类号: B01D3/34 C07C51/44

    CPC分类号: C07D201/16

    摘要: A process for purifying crude caprolactam which has been obtained by 1) converting a mixture (I) comprising 6-aminocapronitrile and water to a mixture (II) comprising caprolactam, ammonia, water, high boilers and low boilers in the presence of a catalyst, then 2) removing ammonia from mixture (II) to obtain a mixture (III) comprising caprolactam, water, high boilers and low boilers, then 3) completely or partly removing water from mixture (III) to obtain crude caprolactam (IV) comprising caprolactam, high boilers and low boilers, which comprises a) feeding the crude caprolactam and an inorganic acid which has a boiling point above the boiling point of caprolactam under the distillation conditions of the following steps b) to h) to a first distillation apparatus C1, b) distilling the crude caprolactam and the inorganic acid in the first distillation apparatus C1, and removing a first substream in the bottom region and a second substream in the top region of the distillation apparatus C1, c) feeding the second substream from step b) to a second distillation apparatus C2, d) distilling the second substream from step b) in the second distillation apparatus C2, and removing a first substream in the bottom region and a second substream in the top region of the distillation apparatus C2, e) feeding the first substream from step d) to a third distillation apparatus C3, f) distilling the first substream from d) in the third distillation apparatus C3, and removing a first substream in the bottom region and purified caprolactam in the top region of distillation apparatus C3, and g) feeding the first substream from step f) to the first distillation apparatus C1.

    摘要翻译: 一种纯化己内酰胺的方法,其通过以下步骤获得:1)在催化剂存在下,将包含6-氨基己腈和水的混合物(I)转化为包含己内酰胺,氨,水,高锅炉和低沸点的混合物(II) 然后2)从混合物(II)中除去氨以获得包含己内酰胺,水,高锅炉和低锅炉的混合物(III),然后3)从混合物(III)中完全或部分除去水,得到包含己内酰胺的粗己内酰胺(IV) ,高沸点锅炉和低锅炉,其包括:a)在第一蒸馏装置C1的下述步骤b)至h)的蒸馏条件下,将粗己内酰胺和沸点高于己内酰胺沸点的无机酸, b)在第一蒸馏装置C1中蒸馏粗己内酰胺和无机酸,并且除去蒸馏装置C1的顶部区域中的第一子流和顶部区域中的第二子流 c)将来自步骤b)的第二子流进料到第二蒸馏装置C2,d)在第二蒸馏装置C2中蒸馏步骤b)中的第二子流,并且除去第二蒸馏装置C2中的第一子流, e)蒸馏装置C2的顶部区域,e)将来自步骤d)的第一子流进料到第三蒸馏装置C3,f)将第一子流从d)蒸馏到第三蒸馏装置C3中,并且除去底部区域中的第一子流 和在蒸馏装置C3的顶部区域中纯化的己内酰胺,并且g)将来自步骤f)的第一子流进料到第一蒸馏装置C1。