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    Method For Manufacturing Catalyst From Recovered Catalyst
    5.
    发明申请
    Method For Manufacturing Catalyst From Recovered Catalyst 审中-公开
    从回收催化剂制备催化剂的方法

    公开(公告)号：US20120329638A1

    公开(公告)日：2012-12-27

    申请号：US13582055

    申请日：2011-03-28

    申请人： Tatsuhiko Kurakami ,  Takayuki Iijima ,  Tomoaki Kobayashi ,  Toshitake Kojima

    发明人： Tatsuhiko Kurakami ,  Takayuki Iijima ,  Tomoaki Kobayashi ,  Toshitake Kojima

    IPC分类号： B01J27/28

    CPC分类号： C07C51/235 ,  B01J27/199 ,  B01J27/285 ,  B01J35/023 ,  B01J37/0009 ,  B01J37/0045 ,  B01J38/68 ,  C07C51/252 ,  Y02P20/584 ,  C07C57/04

    摘要： The present invention relates to a method for manufacturing a regenerated catalyst from a recovered catalyst from manufacturing process or a used catalyst of a heteropoly acid-based catalyst containing molybdenum, phosphorus, vanadium or copper as an essential component by the below-described Process a to Process f: Process a: a solution A is prepared by mixing a substance M with an aqueous solvent and removing a component insoluble in the solvent; Process b: the molar quantity of at least one component of molybdenum, phosphorus, vanadium or copper contained in the solution A is measured; Process c: an aqueous hydrogen peroxide solution is added to the solution A to obtain a solution B; Process d: the difference between the content obtained in Process b and the theoretical value of a required element is determined and the shortage amount of the catalyst component is added to the solution B to prepare a solution C; Process e: the solution C is dried to prepare catalyst granules D; and Process f: the catalyst granules D are molded and subsequently calcined to prepare a molded catalyst E, the manufacturing method is also simple, and the obtained said regenerated catalyst has performance equivalent to an unused target catalyst, leading to a large advantage that it can be used as it is in combination with an unused target catalyst.

    摘要翻译： 本发明涉及一种从制造方法回收的催化剂制造再生催化剂的方法或通过下述方法a至于含有钼，磷，钒或铜作为必要成分的杂多酸系催化剂的使用催化剂 方法f：处理a：通过将物质M与水性溶剂混合并除去不溶于溶剂的组分来制备溶液A; 方法b：测量溶液A中所含的钼，磷，钒或铜的至少一种组分的摩尔量; 方法c：向溶液A中加入过氧化氢水溶液以获得溶液B; 方法d：确定方法b中获得的含量与所需要元素的理论值之间的差异，并将催化剂组分的不足量加入到溶液B中以制备溶液C; 方法e：将溶液C干燥以制备催化剂颗粒D; 和方法f：将催化剂颗粒D模塑并随后煅烧以制备模制催化剂E，制备方法也简单，所得到的所述再生催化剂具有与未使用的目标催化剂相当的性能，导致其可以 可以与未使用的目标催化剂组合使用。

    Method for Producing Methacrolein and/or Methacrylic Acid
    7.
    发明申请
    Method for Producing Methacrolein and/or Methacrylic Acid 有权
    生产甲基丙烯醛和/或甲基丙烯酸的方法

    公开(公告)号：US20090062564A1

    公开(公告)日：2009-03-05

    申请号：US12223494

    申请日：2007-03-30

    申请人： Tatsuhiko Kurakami ,  Toshitake Kojima ,  Yoshimasa Seo

    发明人： Tatsuhiko Kurakami ,  Toshitake Kojima ,  Yoshimasa Seo

    IPC分类号： C07C51/16 ,  C07C45/29

    CPC分类号： C07C45/37 ,  B01J21/04 ,  B01J21/12 ,  B01J23/002 ,  B01J23/8876 ,  B01J23/8878 ,  B01J23/8885 ,  B01J35/0006 ,  B01J2523/00 ,  C07C51/23 ,  C07C51/252 ,  C07C47/22 ,  C07C57/04 ,  B01J2523/15 ,  B01J2523/54 ,  B01J2523/68 ,  B01J2523/842 ,  B01J2523/845

    摘要： The present invention relates to a method for producing methacrolein and/or methacrylic acid characterized in that the catalyst filling length of a dehydration catalyst layer is 3 to 20% of the catalyst filling length of an oxidation catalyst layer in a method where raw material gas containing gaseous t-butanol is supplied to a fixed-bed multitubular reactor having a dehydration catalyst layer and an oxidation catalyst layer in this order, from the entrance for raw material gas toward the exit, to produce methacrolein and/or methacrylic acid by dehydration reaction and catalytic gas phase oxidation reaction, and the present invention can increase the conventional yield of approximately 80% to 81 to 82% even when a reaction bath temperature is relatively low (approximately 355° C.).

    摘要翻译： 本发明涉及甲基丙烯醛和/或甲基丙烯酸的制造方法，其特征在于，在含有原料气体的方法中，脱水催化剂层的催化剂填充长度为氧化催化剂层的催化剂填充长度的3〜20％ 将气态叔丁醇从原料气体入口向出口依次供给具有脱水催化剂层和氧化催化剂层的固定床多管反应器，通过脱水反应生成甲基丙烯醛和/或甲基丙烯酸， 催化气相氧化反应，即使反应浴温度相对较低（约355℃），本发明也可将常规产率提高约80％至81％至82％。