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    Production method of acrylic acid
    1.
    发明授权
    Production method of acrylic acid 有权
    丙烯酸的生产方法

    公开(公告)号：US6069271A

    公开(公告)日：2000-05-30

    申请号：US178737

    申请日：1998-10-27

    申请人： Michio Tanimoto ,  Kazuyuki Uekawa ,  Tatsuya Kawajiri

    发明人： Michio Tanimoto ,  Kazuyuki Uekawa ,  Tatsuya Kawajiri

    IPC分类号： B01J23/88 ,  B01J8/06 ,  B01J23/00 ,  B01J23/888 ,  C07B61/00 ,  C07C51/235 ,  C07C51/25 ,  C07C57/055 ,  C07C51/16

    CPC分类号： B01J23/002 ,  B01J8/067 ,  C07C51/252 ,  B01J2208/00212 ,  B01J2208/00513 ,  B01J2208/025 ,  B01J23/8885 ,  B01J2523/00

    摘要： A method for producing acrylic acid from propylene at high efficiency by two-stage catalytic oxidation using a single fixed bed shell-and-tube heat exchanger type reactor is provided. The method comprises dividing the shell space of said reactor into an upper space and lower space with a partition plate, allowing a heating medium to circulate in each of the spaces substantially independently of each other, and carrying out the vapor phase oxidation under specific conditions. Said specific conditions including providing a first stage catalyst layer at lower portion of each of the reaction tubes, a second stage catalyst layer at upper portion thereof and an inert substance layer therebetween, and making void ratio of the inert substance layer 40-99.5%.

    摘要翻译： 提供了通过使用单个固定床管壳式热交换器型反应器通过两阶段催化氧化从丙烯生产丙烯酸的方法。 该方法包括用分隔板将所述反应器的壳体空间分成上部空间和下部空间，允许加热介质基本上彼此独立地在每个空间中循环，并在特定条件下进行气相氧化。 所述具体条件包括在每个反应管的下部提供第一级催化剂层，在其上部设置第二级催化剂层，并且在其间具有惰性物质层，并使惰性物质层的空隙率为40-99.5％。

    Method for production of acrolein and acrylic acid from propylene
    3.
    发明授权
    Method for production of acrolein and acrylic acid from propylene 有权
    从丙烯生产丙烯醛和丙烯酸的方法

    公开(公告)号：US06545178B1

    公开(公告)日：2003-04-08

    申请号：US09314719

    申请日：1999-05-18

    申请人： Michio Tanimoto ,  Daisuke Nakamura ,  Tatsuya Kawajiri

    发明人： Michio Tanimoto ,  Daisuke Nakamura ,  Tatsuya Kawajiri

    IPC分类号： C07C5116

    CPC分类号： C07C45/35 ,  B01J23/002 ,  B01J23/8876 ,  B01J2523/00 ,  C07C51/252 ,  C07C47/22 ,  C07C57/04 ,  B01J2523/13 ,  B01J2523/41 ,  B01J2523/54 ,  B01J2523/68 ,  B01J2523/69 ,  B01J2523/842 ,  B01J2523/845 ,  B01J2523/3712 ,  B01J2523/56

    摘要： In the production of acrolein and acrylic acid by the catalytic gas phase oxidation of propylene with a molecular oxygen-containing gas, a method is provided which enables acrolein and acrylic acid to be stably produced with a high yield for a long time from propylene by effectively repressing such secondary reactions as are responsible for the formation of organic acids, high boiling compounds, and tarry compounds, the deposition of carbonized materials, and the deterioration of the quality of products. The content of unsaturated hydrocarbons (excluding propylene) of 2-5 carbon atoms in the raw material for propylene is kept below 500 ppm (by weight). Particularly, it is proper to use a raw material for propylene which has a content of unsaturated hydrocarbons (excluding propylene) of 2-5 carbon atoms of not more than 200 ppm (by weight) and a total content of diene and acetylenic compounds of 2-5 carbon atoms of not more than 200 ppm (by weight). The reaction scheme is shown below:

    摘要翻译： 通过丙烯与含分子氧气体的催化气相氧化制备丙烯醛和丙烯酸，提供了一种使丙烯醛和丙烯酸长时间从丙烯中高效率稳定生产的方法， 抑制负责形成有机酸，高沸点化合物和焦油化合物的这种二次反应，碳化材料的沉积以及产品质量的劣化。 丙烯原料中2-5个碳原子的不饱和烃（不包括丙烯）的含量保持在500ppm以下（重量）。 特别地，使用具有2-5个碳原子的不饱和烃（不包括丙烯）的含量不超过200ppm（重量），二烯和炔属化合物的总含量为2的丙烯的原料是适当的 -5个碳原子不超过200ppm（重量）。 反应方案如下：

    Catalyst for production of acrylic acid and method for production of acrylic acid by the use of the catalyst
    4.
    发明授权
    Catalyst for production of acrylic acid and method for production of acrylic acid by the use of the catalyst 失效
    用于生产丙烯酸的催化剂和通过使用催化剂生产丙烯酸的方法

    公开(公告)号：US06429332B1

    公开(公告)日：2002-08-06

    申请号：US08456085

    申请日：1995-05-31

    申请人： Michio Tanimoto ,  Tatsuya Kawajiri ,  Hiromi Yunoki ,  Yukio Aoki

    发明人： Michio Tanimoto ,  Tatsuya Kawajiri ,  Hiromi Yunoki ,  Yukio Aoki

    IPC分类号： C07C5116

    CPC分类号： B01J35/0006 ,  B01J23/8877 ,  B01J23/8885 ,  B01J27/053 ,  B01J27/188

    摘要： A catalyst for the production of acrylic acid by the vapor-phase catalytic oxidation of acrolein or acrolein-containing gas and a method for the production of acrylic acid by the use of this catalyst are provided. The catalyst of this invention comprises (A) a catalyst having Mo and V as essential components and used for the production of acrylic acid by vapor-phase catalytic oxidation of acrolein and (B) a solid acid having acid strength (Ho) of not more than −11.93. Since this catalyst excels in catalytic activity and service life, it allows acrylic acid to be produced stably at a high yield for a long time.

    摘要翻译： 提供了通过气相催化氧化丙烯醛或含丙烯醛的气体生产丙烯酸的催化剂和通过使用该催化剂生产丙烯酸的方法。 本发明的催化剂包括（A）具有Mo和V作为必要成分的催化剂，用于通过丙烯醛的气相催化氧化制备丙烯酸和（B）酸强度（Ho）不大于的固体酸 比-11.93。 由于该催化剂在催化活性和使用寿命方面优异，因此能够以高产率长时间稳定地制备丙烯酸。

    Process for production of acrylic acid
    6.
    发明授权
    Process for production of acrylic acid 失效
    丙烯酸生产工艺

    公开(公告)号：US5739392A

    公开(公告)日：1998-04-14

    申请号：US557353

    申请日：1995-11-13

    申请人： Michio Tanimoto ,  Ichiro Mihara ,  Tatsuya Kawajiri

    发明人： Michio Tanimoto ,  Ichiro Mihara ,  Tatsuya Kawajiri

    IPC分类号： C07C57/04 ,  B01J23/22 ,  B01J23/28 ,  B01J23/885 ,  B01J23/888 ,  C07C51/25 ,  C07C57/05 ,  C07C57/055 ,  C07C51/235

    CPC分类号： B01J23/8885 ,  B01J23/002 ,  B01J23/885 ,  C07C51/252 ,  B01J2523/00

    摘要： Acrylic acid can be produced efficiently by subjecting acrolein to catalytic gas-phase oxidation in the presence of a molybdenum/vanadium-based oxide catalyst prepared by using particular substances as the raw materials of the individual metal elements constituting the catalyst. A preferable example of such a catalyst is prepared by using, as the raw materials of vanadium, ammonium metavanadate and at least one vanadium oxide in which the valency of vanadium is larger than 0 but smaller than 5; as the raw material of copper, copper nitrate; and, as at least part of the raw material(s) of antimony, at least one antimony oxide in which the valency of antimony is larger than 0 but smaller than 5.

    摘要翻译： 在通过使用特定物质作为构成催化剂的各个金属元素的原料制备的钼/钒基氧化物催化剂存在下，使丙烯醛进行催化气相氧化，可以有效地制备丙烯酸。 这种催化剂的优选实例是通过使用钒，偏钒酸铵和至少一种钒的化合物的原料，其中钒的价态大于0但小于5; 作为铜原料，硝酸铜; 作为锑原料的至少一部分，至少一种锑的价数大于0但小于5的氧化锑。

    Process for production of acrylic acid
    7.
    发明授权
    Process for production of acrylic acid 失效
    丙烯酸生产工艺

    公开(公告)号：US5719318A

    公开(公告)日：1998-02-17

    申请号：US810923

    申请日：1997-03-05

    申请人： Tatsuya Kawajiri ,  Michio Tanimoto ,  Daisuke Nakamura

    发明人： Tatsuya Kawajiri ,  Michio Tanimoto ,  Daisuke Nakamura

    IPC分类号： B01J23/88 ,  B01J23/887 ,  B01J23/888 ,  C07B61/00 ,  C07C51/25 ,  C07C57/055 ,  C07C51/16 ,  C07C51/235

    CPC分类号： B01J23/002 ,  B01J23/8877 ,  B01J23/8885 ,  C07C51/252 ,  B01J2523/00

    摘要： As an improvement for the process for production of acrylic acid by subjecting acrolein or an acrolein-containing gas to gas-phase oxidation with molecular oxygen in a fixed bed multitubular reactor, there is provided a novel process capable of producing acrylic acid at a high yield by suppressing the generation of heat spots in catalyst or the build-up of heat in hot spots of catalyst. The process comprises filling, in each of reactor tubes, two or more kinds of catalyst particles of different volumes so as to form a plurality of catalyst layers in the axial direction of the tube in such a manner that the particle volume of catalyst layer becomes smaller as the position of catalyst layer changes from the raw material gas inlet side of the tube to the raw material gas outlet side, each catalyst particle comprising, as the active component, a compound oxide containing at least Mo and V.

    摘要翻译： 作为丙烯醛或含丙烯醛的气体在固定床多管反应器中用分子氧进行气相氧化的丙烯酸生产方法的改进，提供了一种以高产率生产丙烯酸的新方法 通过抑制催化剂中的热点的产生或催化剂的热点中的热积聚。 该方法包括在每个反应器管中填充两种或更多种不同体积的催化剂颗粒，以便在管的轴向上形成多个催化剂层，使得催化剂层的颗粒体积变小 由于催化剂层的位置从管的原料气体入口侧向原料气体出口侧变化，所以每个催化剂颗粒含有至少含有Mo和V的复合氧化物作为活性成分。

    Oxidized organic compound manufacturing method
    9.
    发明授权
    Oxidized organic compound manufacturing method 有权
    氧化有机化合物的制造方法

    公开(公告)号：US08962881B2

    公开(公告)日：2015-02-24

    申请号：US13203311

    申请日：2009-03-09

    申请人： Michio Tanimoto ,  Nobuyuki Hakozaki

    发明人： Michio Tanimoto ,  Nobuyuki Hakozaki

    IPC分类号： C07C45/35 ,  C07C47/22 ,  C07C51/235 ,  C07C51/25 ,  C07C57/05 ,  C07C57/055

    CPC分类号： C07C51/235

    摘要： The disclosed invention is a method for manufacturing an oxidized organic compound which includes a step of forming an oxidized organic compound, in use of a fixed-bed reactor having a reaction tube packed with an oxide catalyst, by supplying at least one type of organic compound as a reaction feedstock gas and using a molecular oxygen-containing gas to carry out a catalytic gas-phase oxidation reaction; and a step of stopping the catalytic gas-phase oxidation reaction. In the manufacturing method, when stopping the catalytic gas-phase oxidation reaction, the supply of the reaction feedstock gas is stopped, after which an inert gas is supplied to the reactor, then a molecular oxygen-containing gas is supplied, subsequent to which the supply of the molecular oxygen-containing gas to the reactor is stopped.

    摘要翻译： 所公开的发明是一种氧化有机化合物的制造方法，其包括形成氧化有机化合物的步骤，在使用具有填充有氧化物催化剂的反应管的固定床反应器的情况下，通过供给至少一种类型的有机化合物 作为反应原料气体并使用含分子氧的气体进行催化气相氧化反应; 以及停止催化气相氧化反应的步骤。 在制造方法中，停止催化气相氧化反应时，停止供给反应原料气体，之后向反应器供给惰性气体，然后供给含分子氧气体，接着， 停止向反应器供应含分子氧的气体。

    Catalyst and process for production of acrylic acid
    10.
    发明申请
    Catalyst and process for production of acrylic acid 有权
    用于生产丙烯酸的催化剂和方法

    公开(公告)号：US20090043128A1

    公开(公告)日：2009-02-12

    申请号：US12287082

    申请日：2008-10-06

    申请人： Hiromi Yunoki ,  Michio Tanimoto ,  Daisuke Nakamura

    发明人： Hiromi Yunoki ,  Michio Tanimoto ,  Daisuke Nakamura

    IPC分类号： C07C51/235 ,  B01J23/22 ,  B01J23/28

    CPC分类号： C07C51/252 ,  B01J23/002 ,  B01J23/28 ,  B01J23/8885 ,  B01J37/0009 ,  B01J37/0223 ,  B01J37/0236 ,  B01J2523/00 ,  C07C57/04 ,  B01J2523/17 ,  B01J2523/55 ,  B01J2523/68 ,  B01J2523/69

    摘要： An object of the present invention is to provide: a catalyst for production of acrylic acid which is a catalyst usable for production of acrylic acid and is excellent in the catalytic performances such as catalytic activity and in the physical properties such as physical strength of the catalyst itself; and a process for production of acrylic acid using this catalyst. As a means of achieving this object, a catalyst for production of acrylic acid according to the present invention is a catalyst obtained by drying a mixed liquid of starting materials including molybdenum and vanadium as essential components to give a dried material, molding the dried material with a liquid binder, and calcining the resultant molding, with the catalyst being characterized in that an ignition loss ratio of the dried material is from 5 to 40% by mass. A process for production of acrylic acid according to the present invention comprises the step of: subjecting acrolein to a catalytic gas phase oxidation in the presence of a molecular oxygen, with the process being characterized in that the above catalyst for production of acrylic acid according to the present invention is used.

    摘要翻译： 本发明的目的在于提供：丙烯酸的制造用催化剂，其为可用于生产丙烯酸的催化剂，催化性能如催化活性以及催化剂的物理性能如催化剂的物理性能优异 本身; 以及使用该催化剂生产丙烯酸的方法。 作为实现该目的的手段，本发明的丙烯酸的制造用催化剂是通过干燥含有钼和钒的起始材料的混合液作为必要成分而得到的催化剂，得到干燥后的材料， 液体粘合剂，并煅烧所得到的模制品，催化剂的特征在于，干燥材料的灼烧损失率为5〜40质量％。 根据本发明的制备丙烯酸的方法包括以下步骤：在分子氧存在下使丙烯醛进行催化气相氧化，其特征在于上述用于生产丙烯酸的催化剂根据 使用本发明。