公开(公告)号：US06777369B1

公开(公告)日：2004-08-17

申请号：US09926553

申请日：2001-11-19

申请人： Toru Kuroda ,  Seiichi Kawato ,  Masanori Nitta ,  Hideyasu Takezawa

发明人： Toru Kuroda ,  Seiichi Kawato ,  Masanori Nitta ,  Hideyasu Takezawa

IPC分类号： B01J2719

CPC分类号： B01J23/002 ,  B01J27/19 ,  B01J27/199 ,  B01J27/285 ,  B01J37/03 ,  B01J38/64 ,  B01J2523/00 ,  C07C51/252 ,  Y02P20/584 ,  Y10S502/514 ,  Y10T428/24149 ,  Y10T428/24997 ,  Y10T428/24999 ,  C07C57/04 ,  B01J2523/13 ,  B01J2523/17 ,  B01J2523/51 ,  B01J2523/55 ,  B01J2523/68 ,  B01J2523/52 ,  B01J2523/15 ,  B01J2523/53 ,  B01J2523/27 ,  B01J2523/42 ,  B01J2523/305 ,  B01J2523/32 ,  B01J2523/72 ,  B01J2523/3706 ,  B01J2523/3712

摘要： The present invention relates to the effective utilization of a used catalyst containing at least molybdenum, an A element (at least one element selected from the group consisting of phosphorus and arsenic) and an X element (at least one element selected from the group consisting of potassium, rubidium and cesium), and provides a process for producing a catalyst, which comprises dispersing said used catalyst in water, adding thereto an alkali metal compound and/or ammonia solution, adjusting the resulting mixture to pH 6.5 or less to generate a precipitate containing at least molybdenum and the A element, and using the precipitate as a material for catalyst-constituting elements.

摘要翻译： 本发明涉及至少含有钼，A元素（选自磷和砷的至少一种元素）和X元素（至少一种选自由以下组成的组的元素： 钾，铷和铯），并提供一种制备催化剂的方法，其包括将所述使用的催化剂分散在水中，向其中加入碱金属化合物和/或氨溶液，将所得混合物调节至pH6.5以下以产生沉淀 含有至少钼和A元素，并且使用沉淀物作为催化剂构成元素的材料。

公开(公告)号：US08470730B2

公开(公告)日：2013-06-25

申请号：US11994654

申请日：2006-07-05

申请人： Masahide Kondo ,  Masanori Nitta ,  Hiroyuki Naitou ,  Toru Kuroda ,  Seiichi Kawato

发明人： Masahide Kondo ,  Masanori Nitta ,  Hiroyuki Naitou ,  Toru Kuroda ,  Seiichi Kawato

IPC分类号： B01J23/00 ,  B01J23/42 ,  C03C23/00 ,  B08B5/04 ,  B08B9/00 ,  B08B3/00

CPC分类号： B01J23/8885 ,  B01J21/08 ,  B01J23/002 ,  B01J23/8876 ,  B01J35/002 ,  B01J35/023 ,  B01J37/0009 ,  B01J37/0045 ,  B01J2523/00 ,  B08B9/08 ,  C07C45/35 ,  C07C51/252 ,  C07C253/18 ,  C07C47/22 ,  C07C57/04 ,  B01J2523/13 ,  B01J2523/27 ,  B01J2523/53 ,  B01J2523/54 ,  B01J2523/68 ,  B01J2523/69 ,  B01J2523/842 ,  B01J2523/845

摘要： Disclosed is a method for producing a catalyst, in which physical properties of a dried material or a calcined material in a production process of the catalyst are stable and a change in at least one of a catalyst activity and a selectivity to a target product is small and hence reproducibility of the catalyst is excellent. The present invention is a method for producing a catalyst containing molybdenum, bismuth, and iron, which contains the steps of washing a surface of at least one device equipped in an apparatus for the production of catalyst, to which a solid matter adheres, with a basic solution, and producing the catalyst with the apparatus for the production of catalyst thus washed.

摘要翻译： 公开了一种催化剂的制造方法，其中，在催化剂的制造方法中，干燥材料或煅烧材料的物理性质稳定，催化剂活性和对目标产物的选择性中的至少一种变化小 催化剂的再现性优异。 本发明是一种生产含有钼，铋和铁的催化剂的方法，其包括以下步骤：将装有固体物质的催化剂装置中装备的至少一种装置的表面与 碱性溶液，并用生产如此洗涤的催化剂的装置生产催化剂。

公开(公告)号：US06919478B2

公开(公告)日：2005-07-19

申请号：US10467343

申请日：2002-02-19

申请人： Seiichi Kawato ,  Masahide Kondo ,  Toru Kuroda ,  Masanori Nitta ,  Mieji Sugiyama

发明人： Seiichi Kawato ,  Masahide Kondo ,  Toru Kuroda ,  Masanori Nitta ,  Mieji Sugiyama

IPC分类号： B01J23/88 ,  B01J8/06 ,  B01J23/887 ,  B01J23/888 ,  B01J27/192 ,  B01J37/00 ,  B01J37/08 ,  B01J37/28 ,  C07B61/00 ,  C07C27/00 ,  C07C27/14 ,  C07C47/22 ,  C07C51/215 ,  C07C51/25 ,  C07C57/05 ,  C07C51/16 ,  B01J23/00 ,  C07C51/235 ,  C07C51/245

CPC分类号： B01J37/08 ,  B01J8/067 ,  B01J23/8875 ,  B01J23/8885 ,  B01J37/0018 ,  B01J37/0045 ,  B01J37/28 ,  B01J2208/00212 ,  C07C51/252 ,  C07C57/04

摘要： In producing a catalyst used for synthesis of an unsaturated aldehyde and an unsaturated carboxylic acid by a gas-phase catalytic oxidation, there is used a step of packing an additive-containing catalyst precursor of the catalyst into a tubular reactor, passing a gas through the tubular reactor, and elevating, in this state, the temperature of the additive-containing catalyst precursor so that a temperature of the gas at an outlet of the catalyst precursor layer becomes higher than a temperature of the gas at an inlet of the catalyst precursor layer. The step makes possible easy and highly reproducible production of a high-performance catalyst which is small in the reduction in catalytic performance caused by, for example, the thermal decomposition of the additive contained in the catalyst precursor.

摘要翻译： 在制备用于通过气相催化氧化合成不饱和醛和不饱和羧酸的催化剂时，使用将催化剂的含添加剂的催化剂前体填充到管式反应器中的步骤，使气体通过 并且在该状态下升高含添加剂的催化剂前体的温度，使得催化剂前体层的出口处的气体的温度变得高于催化剂前体层的入口处的气体的温度 。 该步骤使得可以容易且高度可重复地生产由例如催化剂前体中所含添加剂的热分解引起的催化性能降低小的高性能催化剂。

公开(公告)号：US06867163B2

公开(公告)日：2005-03-15

申请号：US10276700

申请日：2001-05-10

申请人： Hideyasu Takezawa ,  Toru Kuroda ,  Seiichi Kawato ,  Masanori Nitta

发明人： Hideyasu Takezawa ,  Toru Kuroda ,  Seiichi Kawato ,  Masanori Nitta

IPC分类号： B01J23/28 ,  B01J27/19 ,  B01J27/199 ,  B01J35/02 ,  B01J37/03 ,  C01G39/00 ,  C01G45/00

CPC分类号： B01J23/002 ,  B01J23/28 ,  B01J27/19 ,  B01J27/199 ,  B01J35/023 ,  B01J37/031 ,  B01J2523/00 ,  C01G39/00 ,  C01G39/006 ,  C01G45/006 ,  C01P2004/61 ,  C01P2006/80 ,  B01J2523/13 ,  B01J2523/17 ,  B01J2523/51 ,  B01J2523/55 ,  B01J2523/68 ,  B01J2523/3712 ,  B01J2523/52 ,  B01J2523/15

摘要： A molybdenum-based precipitate is prepared according to a process including the first step of forming a crude precipitate by pH adjustment to 6.5 or less in the presence of an alkali metal compound, and the second step of dissolving the crude precipitate in aqueous ammonia and forming a precipitate by pH adjustment to 6.5 or less. Then, the resulting molybdenum-based precipitate is washed with an acid aqueous solution having a pH of 6.5 or less and containing not less than 0.01 mole/L of ammonium root. Thus, a change in average particle diameter can be suppressed and good workability can be achieved, so that a molybdenum-based precipitate having a high purity and a desired average particle diameter can be obtained.

摘要翻译： 根据包括在碱金属化合物的存在下通过pH调节至6.5以下的粗沉淀物的第一步骤的方法制备钼基沉淀物，第二步是将粗沉淀物溶解在氨水中并形成 通过pH调节至6.5以下的沉淀物。 然后，用pH为6.5以下且含有0.01摩尔/升以上的铵根的酸性水溶液洗涤所得到的钼系析出物。 因此，可以抑制平均粒径的变化，并且可以实现良好的加工性，从而可以获得具有高纯度和期望的平均粒径的钼基沉淀。

公开(公告)号：US20090170696A1

公开(公告)日：2009-07-02

申请号：US11994654

申请日：2006-07-05

申请人： Masahide Kondo ,  Masanori Nitta ,  Hiroyuki Naitou ,  Toru Kuroda ,  Seiichi Kawato

发明人： Masahide Kondo ,  Masanori Nitta ,  Hiroyuki Naitou ,  Toru Kuroda ,  Seiichi Kawato

IPC分类号： B01J23/881

CPC分类号： B01J23/8885 ,  B01J21/08 ,  B01J23/002 ,  B01J23/8876 ,  B01J35/002 ,  B01J35/023 ,  B01J37/0009 ,  B01J37/0045 ,  B01J2523/00 ,  B08B9/08 ,  C07C45/35 ,  C07C51/252 ,  C07C253/18 ,  C07C47/22 ,  C07C57/04 ,  B01J2523/13 ,  B01J2523/27 ,  B01J2523/53 ,  B01J2523/54 ,  B01J2523/68 ,  B01J2523/69 ,  B01J2523/842 ,  B01J2523/845

摘要： Disclosed is a method for producing a catalyst, in which physical properties of a dried material or a calcined material in a production process of the catalyst are stable and a change in at least one of a catalyst activity and a selectivity to a target product is small and hence reproducibility of the catalyst is excellent. The present invention is a method for producing a catalyst containing molybdenum, bismuth, and iron, which contains the steps of washing a surface of at least one device equipped in an apparatus for the production of catalyst, to which a solid matter adheres, with a basic solution, and producing the catalyst with the apparatus for the production of catalyst thus washed.

摘要翻译： 公开了一种催化剂的制造方法，其中，在催化剂的制造方法中，干燥材料或煅烧材料的物理性质稳定，催化剂活性和对目标产物的选择性中的至少一种的变化小 催化剂的再现性优异。 本发明是一种生产含有钼，铋和铁的催化剂的方法，其包括以下步骤：将装有固体物质的催化剂装置中装备的至少一种装置的表面与 碱性溶液，并用生产如此洗涤的催化剂的装置生产催化剂。