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    Process for producing acrylic acid
    1.
    发明授权
    Process for producing acrylic acid 失效
    丙烯酸生产工艺

    公开(公告)号：US08076509B2

    公开(公告)日：2011-12-13

    申请号：US12312801

    申请日：2007-11-28

    申请人： Hiroto Kasuga ,  Etsushige Matsunami ,  Masafumi Sugio

    发明人： Hiroto Kasuga ,  Etsushige Matsunami ,  Masafumi Sugio

    IPC分类号： C07C51/16

    CPC分类号： C07C51/23 ,  C07C51/235 ,  C07C51/377 ,  C07C57/04

    摘要： The present invention provides a process for producing acrylic acid from glycerin with a catalyst having a prolonged life. In the process for producing acrylic acid from glycerin, a molar ratio of oxygen to glycerin in a raw material gas is set to be not lower than 0.8 and not higher than 20.

    摘要翻译： 本发明提供了一种由具有延长使用寿命的催化剂由甘油生产丙烯酸的方法。 在由甘油生产丙烯酸的方法中，将原料气体中的氧与甘油的摩尔比设定为不低于0.8且不高于20。

    Process for producing acrolein and glycerin-containing composition
    2.
    发明授权
    Process for producing acrolein and glycerin-containing composition 有权
    制备含丙烯醛和含甘油组合物的方法

    公开(公告)号：US07951978B2

    公开(公告)日：2011-05-31

    申请号：US12312883

    申请日：2007-11-28

    申请人： Yoshitaka Arita ,  Hideaki Tsuneki ,  Hiroto Kasuga ,  Masaki Okada ,  Masaru Kirishiki

    发明人： Yoshitaka Arita ,  Hideaki Tsuneki ,  Hiroto Kasuga ,  Masaki Okada ,  Masaru Kirishiki

    IPC分类号： C07C45/42 ,  C07C45/52

    CPC分类号： C07C31/225 ,  C07C45/52 ,  C07C47/22

    摘要： The present invention provides a process for producing acrolein, which exhibits a prolonged catalyst life, low energy consumption, and excellent efficiency, and which is earth-conscious, and a glycerin-containing composition which can preferably be used even in this process. The process for producing acrolein is one which includes bringing a raw material gas containing glycerin gas into contact with a solid acid catalyst in a reactor, and the partial pressure of the glycerin gas in the raw material gas is set to be from 0.01 to 30 kPa. The glycerin-containing composition is for use in a process for producing acrolein using a solid catalyst and includes a fatty acid and/or a fatty acid ester, and a total mass of the fatty acid and the fatty acid ester is from 0.001% to 5% by mass, relative to the glycerin.

    摘要翻译： 本发明提供一种生产丙烯醛的方法，其具有延长的催化剂寿命，低能量消耗和优异的效率，并且是有意识的，以及即使在该方法中也可优选使用的含甘油的组合物。 制造丙烯醛的方法是将含有甘油气体的原料气体与反应器中的固体酸催化剂接触的原料气体的原料气体的分压为0.01〜30kPa 。 含有甘油的组合物用于使用固体催化剂制备丙烯醛的方法，包括脂肪酸和/或脂肪酸酯，脂肪酸和脂肪酸酯的总质量为0.001〜5 相对于甘油为质量％。

    Process for Production of Acrolein
    3.
    发明申请
    Process for Production of Acrolein 有权
    丙烯醛生产工艺

    公开(公告)号：US20090118549A1

    公开(公告)日：2009-05-07

    申请号：US12225823

    申请日：2007-03-27

    申请人： Etsushige Matsunami ,  Tsukasa Takahashi ,  Hiroto Kasuga ,  Yoshitaka Arita

    发明人： Etsushige Matsunami ,  Tsukasa Takahashi ,  Hiroto Kasuga ,  Yoshitaka Arita

    IPC分类号： C07C45/51

    CPC分类号： B01J27/182 ,  B01J21/08 ,  B01J27/16 ,  B01J27/1806 ,  B01J27/187 ,  B01J35/002 ,  B01J37/0201 ,  B01J37/03 ,  C07C45/52 ,  C07C47/22

    摘要： There is provided a process for producing acrolein from glycerin, exhibiting a suppressed decrease in the yield of acrolein with time. In the process for producing acrolein by dehydrating glycerin in the presence of a catalyst containing a metal phosphate, one, or two or more, metal phosphates are used, which are selected from aluminum salts, zirconium salts, manganese salts, alkali metal salts (provided that the alkali metal is sodium, potassium, or cesium, and the ratio between the mole number (M) of the alkali metal and the mole number (P) of phosphoric acid (i.e., M/P ratio) in the metal phosphate is 2.0 or lower), alkali earth metal salts (provided that the ratio between the mole number (M) of the alkali earth metal and the mole number (P) of phosphoric acid (i.e., M/P ratio) in the metal phosphate is 1.0 or lower), and the like.

    摘要翻译： 提供了一种从甘油制备丙烯醛的方法，随着时间的推移，丙烯醛的收率下降。 在含有金属磷酸盐，一种或两种以上的催化剂存在下，通过脱水甘油来制备丙烯醛的方法中，使用选自铝盐，锆盐，锰盐，碱金属盐的金属磷酸盐（提供 碱金属是钠，钾或铯，碱金属的摩尔数（M）与磷酸的摩尔数（P）之比（M / P比）在金属磷酸盐中的比例为2.0 或更低）碱土金属盐（条件是金属磷酸盐中碱土金属的摩尔数（M）与磷酸的摩尔数（P）之比（即M / P比）之比为1.0或 较低）等。

    Method for regenerating heteropolyacid catalyst and method for producing methacrylic acid
    5.
    发明授权
    Method for regenerating heteropolyacid catalyst and method for producing methacrylic acid 失效
    再生杂多酸催化剂的方法和生产甲基丙烯酸的方法

    公开(公告)号：US06673733B2

    公开(公告)日：2004-01-06

    申请号：US09824338

    申请日：2001-04-03

    申请人： Naohiro Fukumoto ,  Naomasa Kimura ,  Hiroto Kasuga ,  Eiichi Shiraishi

    发明人： Naohiro Fukumoto ,  Naomasa Kimura ,  Hiroto Kasuga ,  Eiichi Shiraishi

    IPC分类号： B01J3866

    CPC分类号： B01J38/485 ,  B01J27/188 ,  B01J27/285 ,  C07C51/252 ,  Y02P20/584 ,  C07C57/04

    摘要： The invention provides a method for regenerating with high efficiency a deteriorated catalyst of reduced activity, said catalyst originating from a heteropolyacid catalyst containing heteropolyacid formed of molybdophosphoric acid and/or molybdovanadophosphoric acid, or a salt thereof, to a heteropolyacid catalyst which exhibits approximately equivalent activity level to that of the fresh catalyst. Said method comprises mixing a deteriorated catalyst and a nitrogen-containing heterocyclic compound under the conditions whereunder ammonium ions and nitrate anions are present at such ratio that the amount of total ammonium ions per mol of total nitrate anions does not exceed 1.7 mols, drying the mixture and calcining the same.

    摘要翻译： 本发明提供了一种高效还原催化剂活性降低的催化剂的方法，所述催化剂源于含有由钼磷酸和/或钼钒酸或其盐形成的杂多酸的杂多酸催化剂或其盐，其表现出大致相等的活性 与新鲜催化剂的水平。 所述方法包括在以下条件下混合劣化的催化剂和含氮杂环化合物，其中铵离子和硝酸根阴离子存在的比例使得每一摩尔总硝酸根阴离子的总铵离子的量不超过1.7摩尔，干燥混合物 并煅烧相同。

    Method for preparing heteropolyacid catalyst and method for producing methacrylic acid
    6.
    发明授权
    Method for preparing heteropolyacid catalyst and method for producing methacrylic acid 失效
    制备杂多酸催化剂的方法和生产甲基丙烯酸的方法

    公开(公告)号：US06624326B2

    公开(公告)日：2003-09-23

    申请号：US10155987

    申请日：2002-05-29

    申请人： Hiroto Kasuga ,  Kaori Nakatani ,  Eiichi Shiraishi

    发明人： Hiroto Kasuga ,  Kaori Nakatani ,  Eiichi Shiraishi

    IPC分类号： C07C5116

    CPC分类号： C07C51/252 ,  B01J23/002 ,  B01J27/188 ,  B01J27/19 ,  B01J27/199 ,  B01J2523/00 ,  C07C57/04 ,  B01J2523/15 ,  B01J2523/17 ,  B01J2523/51 ,  B01J2523/55 ,  B01J2523/68

    摘要： A novel method for preparing a heteropolyacid catalyst containing a heteropolyacid composed of molybdophosphoric acid and/or molybdovanadophosphoric acid, or a salt of the heteropolyacid, is provided. The method comprises preparing an aqueous solution or aqueous dispersion which (1) contains the nitrogen-containing heterocyclic compound, nitrate anions and ammonium ions, (2) the ammonium ion content not exceeding 1.7 mols per mol of the nitrate anion content, and (3) the ammonium ion content not exceeding 10 mols per 12 mols of the molybdenum atom content by mixing raw materials containing the catalyst-constituting elements with the nitrogen-containing heterocyclic compound in the presence of water, drying and calcining the same. This heteropolyacid catalyst excels over conventional catalysts in performance, life and strength.

    摘要翻译： 提供了一种制备含有由钼磷酸和/或钼钒钒酸组成的杂多酸的杂多酸催化剂或杂多酸盐的新方法。 该方法包括制备（1）包含含氮杂环化合物，硝酸根阴离子和铵离子的水溶液或水分散体，（2）每摩尔硝酸根阴离子含量不超过1.7摩尔的铵离子含量，和（3 ）通过在水存在下将含有催化剂构成元素的原料与含氮杂环化合物混合，干燥并煅烧，铵离子含量不超过10摩尔/ 12摩尔钼原子含量。 这种杂多酸催化剂在性能，寿命和强度方面优于常规催化剂。

    Polyacrylic acid (salt)-based water-absorbent resin and method for producing same
    7.
    发明申请
    Polyacrylic acid (salt)-based water-absorbent resin and method for producing same 审中-公开
    聚丙烯酸（盐）系吸水性树脂及其制造方法

    公开(公告)号：US20110034603A1

    公开(公告)日：2011-02-10

    申请号：US12936823

    申请日：2009-04-24

    申请人： Shinichi Fujino ,  Eri Nagasawa ,  Kunihiko Ishizaki ,  Hiroto Kasuga

    发明人： Shinichi Fujino ,  Eri Nagasawa ,  Kunihiko Ishizaki ,  Hiroto Kasuga

    IPC分类号： C08L33/02 ,  C08F220/06 ,  C08K5/09

    CPC分类号： C08F6/008 ,  A61F2013/530481 ,  A61L15/22 ,  A61L15/60 ,  C08F6/10 ,  C08F220/06 ,  C08J3/126 ,  C08J3/128 ,  C08J3/245 ,  C08J2333/02 ,  C08L33/02

    摘要： In order to realize, while preventing gelatification of a monomer not yet to be polymerized, a water-absorbent resin which is more stable in color over time and has a significant enhancement in a problem concerning surface color and an excellent absorption property, a method for producing a polyacrylic acid-based water-absorbent resin includes: a preparation step in which a monomer is prepared from acrylic acid including hydroxyacetone in an amount not larger than 300 mass ppm; a polymerization step in which the monomer is polymerized so that a hydrogel is obtained; and a drying step in which the hydrogel is dried. Also, a method of the present invention for producing polyacrylic acid-based water-absorbent resin includes: a preparation step in which a monomer is prepared from acrylic acid; a polymerization step in which the monomer is polymerized in presence of phenol so that a hydrogel is obtained; and a drying step in which the hydrogel is dried.

    摘要翻译： 为了在防止尚未聚合的单体的凝胶化的同时，实现随着时间的推移，颜色更稳定并且显着提高了表面颜色和吸收性优异的问题的吸水性树脂， 制备聚丙烯酸类吸水性树脂包括：制备步骤，其中单体由不大于300质量ppm的羟基丙酮的丙烯酸制备; 聚合步骤，其中单体聚合以获得水凝胶; 和干燥步骤，其中水凝胶被干燥。 此外，本发明的聚丙烯酸类吸水性树脂的制造方法还包括：由丙烯酸制备单体的制备工序; 聚合步骤，其中单体在苯酚存在下聚合以获得水凝胶; 和干燥步骤，其中水凝胶被干燥。