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    Preparation of (meth)acrylic acid
    1.
    发明授权
    Preparation of (meth)acrylic acid 失效
    （甲基）丙烯酸的制备

    公开(公告)号：US07019169B2

    公开(公告)日：2006-03-28

    申请号：US10934442

    申请日：2004-09-07

    申请人： Frieder Borgmeier ,  Frank Rosowski ,  Hans-Günther Lintz ,  Ina Grisstede

    发明人： Frieder Borgmeier ,  Frank Rosowski ,  Hans-Günther Lintz ,  Ina Grisstede

    IPC分类号： C07C51/16

    CPC分类号： C07C51/215 ,  C07C57/04

    摘要： A process for preparing (meth)acrylic acid by conducting a saturated hydrocarbon precursor compound through a catalyst bed I whose catalysts I have, as the active composition, a multimetal oxide I which has a specific X-ray diffractogram and contains the elements Mo and V, at least one of the elements Te and Sb, and also at least one of the elements from the group consisting of Nb, Ta, W, Ce and Ti, wherein the catalyst bed I is interrupted by at least one catalyst bed II whose catalysts II have, as the active composition, a multimetal oxide II which contains the elements Mo, Bi and Fe.

    摘要翻译： 通过使催化剂床I（其具有催化剂床I）作为活性组合物，通过具有特定的X射线衍射图并含有元素Mo和V的多金属氧化物I来导入饱和烃前体化合物来制备（甲基）丙烯酸的方法 ，元素Te和Sb中的至少一种，以及来自Nb，Ta，W，Ce和Ti的元素中的至少一种元素，其中催化剂床I被至少一个催化剂床II中断，催化剂床II的催化剂床 作为活性组合物，II具有包含元素Mo，Bi和Fe的多金属氧化物II。

    Preparation of (meth) acrylic acid
    2.
    发明申请
    Preparation of (meth) acrylic acid 失效
    （甲基）丙烯酸的制备

    公开(公告)号：US20050065370A1

    公开(公告)日：2005-03-24

    申请号：US10934442

    申请日：2004-09-07

    申请人： Frieder Borgmeier ,  Frank Rosowski ,  Hans-Gunther Lintz ,  Ina Grisstede

    发明人： Frieder Borgmeier ,  Frank Rosowski ,  Hans-Gunther Lintz ,  Ina Grisstede

    IPC分类号： C07C51/215 ,  C07C51/16 ,  C07C51/235

    CPC分类号： C07C51/215 ,  C07C57/04

    摘要： A process for preparing (meth)acrylic acid by conducting a saturated hydrocarbon precursor compound through a catalyst bed I whose catalysts I have, as the active composition, a multimetal oxide I which has a specific X-ray diffractogram and contains the elements Mo and V, at least one of the elements Te and Sb, and also at least one of the elements from the group consisting of Nb, Ta, W, Ce and Ti, wherein the catalyst bed I is interrupted by at least one catalyst bed II whose catalysts II have, as the active composition, a multimetal oxide II which contains the elements Mo, Bi and Fe.

    摘要翻译： 通过使催化剂床I（其具有催化剂床I）作为活性组合物，通过具有特定X射线衍射图并含有元素Mo和V的多金属氧化物I来导入饱和烃前体化合物来制备（甲基）丙烯酸的方法 ，元素Te和Sb中的至少一种，以及来自Nb，Ta，W，Ce和Ti的元素中的至少一种元素，其中催化剂床I被至少一个催化剂床II中断，催化剂床II的催化剂床 作为活性组合物，II具有包含元素Mo，Bi和Fe的多金属氧化物II。

    Method for the production of unsaturated nitriles from alkanes
    8.
    发明授权
    Method for the production of unsaturated nitriles from alkanes 失效
    从烷烃生产不饱和腈的方法

    公开(公告)号：US07271279B2

    公开(公告)日：2007-09-18

    申请号：US10482326

    申请日：2002-06-25

    申请人： Frieder Borgmeier ,  Frank Rosowski ,  Goetz-Peter Schindler

    发明人： Frieder Borgmeier ,  Frank Rosowski ,  Goetz-Peter Schindler

    IPC分类号： C07C253/18 ,  C07C255/08

    CPC分类号： C07C253/26 ,  B01J27/199 ,  C07C45/33 ,  C07C45/35 ,  Y02P20/52 ,  C07C47/22 ,  C07C255/08

    摘要： The invention relates to a process for preparing unsaturated nitrites from the corresponding alkanes which comprises the steps: a) feeding an alkane into a dehydrogenation zone and catalytically dehydrogenating the alkane to the corresponding alkene to obtain a product gas stream A which comprises the alkene, unconverted alkane and possibly one or more further gas components selected from the group consisting of steam, hydrogen, carbon oxides, hydrocarbons having a lower boiling point than the alkane or the alkene (low-boilers), nitrogen and noble gases, b) at least partially removing further gas components from the product gas stream A to give a feed gas stream B which comprises the alkane and the alkene, c) feeding the feed gas stream B, ammonia, an oxygen-containing gas and, if desired, steam into an oxidation zone and catalytically ammoxidizing the alkene to the corresponding unsaturated nitrile to give a product gas stream C which comprises the unsaturated nitrile, ammoxidation by-products, unconverted alkane and alkene and possibly one or more further gas components selected from the group consisting of steam, oxygen, carbon oxides, ammonia, nitrogen and noble gases, d) optionally removing ammonia from the product gas stream C to give an ammonia-depleted product gas stream D, e) removing the unsaturated nitrile and ammoxidation by-products from the product gas stream C or D by absorption in an aqueous absorbent to give a gas stream E which comprises unconverted alkane and alkene and possibly one or more further gas components selected from the group consisting of oxygen, carbon oxides, ammonia, nitrogen and noble gases, and an aqueous stream which comprises the nitrile and the by-products, and recovery of the unsaturated nitrile from the aqueous stream, f) recycling the gas stream E into the dehydrogenation zone.

    摘要翻译： 本发明涉及从相应的烷烃制备不饱和亚硝酸盐的方法，其包括以下步骤：a）将烷烃进料到脱氢区中，并将烷烃催化脱氢至相应的烯烃，得到产物气流A，其包含未转化的烯烃 烷烃和可能的一种或多种另外的气体组分，其选自蒸汽，氢气，碳氧化物，沸点低于烷烃或烯烃（低沸点）的烃，氮气和惰性气体，b）至少部分 从产物气流A中除去进一步的气体组分，得到包含烷烃和烯烃的进料气流B，c）将进料气流B，氨，含氧气体和如果需要的话进料到氧化物 并将烯烃催化氨基化成相应的不饱和腈，得到包含不饱和腈的产物气流C，通过 - 产物，未转化的烷烃和烯烃以及可能的一种或多种另外的气体组分，其选自蒸汽，氧气，碳氧化物，氨，氮气和惰性气体，d）任选地从产物气流C除去氨，得到氨 分离的产物气流D，e）通过在含水吸收剂中吸收从产物气流C或D中除去不饱和腈和氨氧化副产物，得到包含未转化的烷烃和烯烃的气流E，以及可能一个或多个另外的 选自氧，碳氧化物，氨，氮和惰性气体的气体组分和包含腈和副产物的水流，以及从水流中回收不饱和腈，f）将气体再循环 流E进入脱氢区。