公开(公告)号：USH1787H

公开(公告)日：1999-02-02

申请号：US829696

申请日：1997-03-26

申请人： Kazuharu Ogasawara ,  Tomio Kato ,  Kazuyuki Minato ,  Kenji Kato ,  Makoto Sumitani

发明人： Kazuharu Ogasawara ,  Tomio Kato ,  Kazuyuki Minato ,  Kenji Kato ,  Makoto Sumitani

IPC分类号： C01B15/023 ,  C07C50/18

CPC分类号： C01B15/023

摘要： A regeneration method of a working solution is herein disclosed in which various by-products which do not participate in the production of hydrogen peroxide and which are present in the working solution in a hydrogen peroxide production process utilizing an anthraquinone method can efficiently be converted into anthraquinones effective as reaction media for the production of hydrogen peroxide.The present invention is concerned with (1) a regeneration method of a working solution wherein at least a part of the unreduced working solution is brought into contact with a catalyst mainly comprising a .gamma.-alumina at a temperature of 40 to 150.degree. C., and (2) another regeneration method of a working solution wherein the working solution is brought into contact with a catalyst mainly comprising a .gamma.-alumina at a temperature of 20 to 150.degree. C. under conditions that a concentration h (mol/liter) of the alkyltetrahydroanthrahydroquinones in the working solution before the catalytic treatment meets the equation(0.0018.times.t-0.0285).times.h

摘要翻译： 本文公开了一种工作溶液的再生方法，其中不参与过氧化氢生产的各种副产物在使用蒽醌方法的过氧化氢生产过程中存在于工作溶液中的各种副产物可有效地转化为蒽醌 作为生产过氧化氢的反应介质有效。 本发明涉及（1）一种工作溶液的再生方法，其中至少一部分未还原的工作溶液与主要包含γ-氧化铝的催化剂在40〜150℃的温度下接触， 和（2）工作溶液的另一种再生方法，其中使工作溶液与主要包含γ-氧化铝的催化剂在20至150℃的温度下接触，在浓度h（mol / l） 在催化处理之前的工作溶液中的烷基四氢蒽醌符合方程（0.0018xt-0.0285）xh <0.05，其中t为处理温度（℃），将工作溶液中的烷基四氢加成蒽转化为烷基四氢蒽醌。

公开(公告)号：US5399333A

公开(公告)日：1995-03-21

申请号：US162305

申请日：1993-12-06

申请人： Tomio Kato ,  Yukio Ishiuchi ,  Hiroshi Takamiya ,  Kazuharu Ogasawara ,  Kazuyuki Minato

发明人： Tomio Kato ,  Yukio Ishiuchi ,  Hiroshi Takamiya ,  Kazuharu Ogasawara ,  Kazuyuki Minato

IPC分类号： C01B15/023

CPC分类号： C01B15/023

摘要： A process for producing hydrogen peroxide by subjecting a working solution containing anthraquinones as the reaction medium, to reduction and oxidation alternately, which process is characterized in that (1) the anthraquinones as the reaction medium contained in the working solution are a mixture of an alkyl-substituted anthraquinone and an alkyl-substituted tetrahydroanthraquinone, (2) in the reduction step, the total amount of the alkyl-substituted tetrahydroanthraquinone in the working solution and part or the total amount of the alkyl-substituted anthraquinone in the working solution are reduced, and (3) in the working solution after the reduction step, the content of the alkyl-substituted anthrahydroquinone formed is kept higher than the content of the alkyl-substituted tetrahydroanthrahydroquinone formed.

摘要翻译： 通过对含有蒽醌作为反应介质的工作溶液进行交替的还原和氧化而生产过氧化氢的方法，其特征在于：（1）工作溶液中含有的作为反应介质的蒽醌是烷基 取代的蒽醌和烷基取代的四氢蒽醌，（2）在还原步骤中，工作溶液中烷基取代的四氢蒽醌的总量和工作溶液中烷基取代的蒽醌的总量以及总量减少， 和（3）在还原步骤后的工作溶液中，形成的烷基取代的蒽醌的含量保持高于形成的烷基取代的四氢蒽氢醌的含量。

公开(公告)号：US06495096B1

公开(公告)日：2002-12-17

申请号：US09124839

申请日：1998-07-30

申请人： Takayoshi Hamaguchi ,  Kazuyuki Minato ,  Toshimi Matsumoto ,  Tadashi Shimomura

发明人： Takayoshi Hamaguchi ,  Kazuyuki Minato ,  Toshimi Matsumoto ,  Tadashi Shimomura

IPC分类号： A61L900

CPC分类号： A61L9/01 ,  C02F1/52 ,  C02F1/5236 ,  C02F1/722 ,  C02F11/06 ,  C02F2303/02

摘要： A deodorant, for substances containing hydrogen sulfide or mercaptans, which includes a combination of a peroxide and a nitrate ion, a combination of a peroxide, a nitrate ion and a metal salt, or a combination of a chelating agent and one of the above combinations, and a process for deodorization comprising treating a substance for treatment, containing hydrogen sulfide or mercaptans, with the above deodorant. Smell caused by hydrogen sulfide or mercaptans is effectively removed by the deodorant. Smell from waste water, sludge, and water discharged from washing apparatuses can be efficiently removed with use of the deodorant in a small amount in accordance with this process.

摘要翻译： 含有硫化氢或硫醇的物质的除臭剂，其包括过氧化物和硝酸根离子的组合，过氧化物，硝酸根离子和金属盐的组合，或螯合剂与上述组合之一的组合 以及除臭方法，包括用上述除臭剂处理含硫化氢或硫醇的物质进行处理。 由除臭剂有效地除去硫化氢或硫醇引起的气味。 根据该方法，可以使用少量的除臭剂有效地除去从洗涤装置排出的废水，污泥和水的气味。