Supported catalyst and method for preparing the same
    21.
    发明申请
    Supported catalyst and method for preparing the same 有权
    负载催化剂及其制备方法

    公开(公告)号:US20050215427A1

    公开(公告)日:2005-09-29

    申请号:US11075866

    申请日:2005-03-10

    Abstract: The invention provides and a highly-dispersed supported catalyst that has a reduced average particle size of catalytic metal particles and is also supported by a porous support material. A method of preparing a supported catalyst that can reduce the average particle size of catalytic metal particles supported by a support material includes first mixing a charged support material with a solution containing a polymer electrolyte having a charge opposite to that of the support material to adsorb the polymer electrolyte on the support material. Next, the support material having the polymer electrolyte adsorbed thereon is mixed with a solution containing a catalytic metal precursor ion having a charge opposite to that of the polymer electrolyte to adsorb the catalytic metal precursor ion on the support material having the polymer electrolyte adsorbed on it. Finally, the catalytic metal precursor ion adsorbed on the support material having the polymer electrolyte adsorbed thereon is reduced to a catalytic metal in a reducing solution.

    Abstract translation: 本发明提供了一种具有降低的催化金属颗粒的平均粒度的高度分散的负载型催化剂,并且还由多孔载体材料支撑。 制备能够降低由载体材料负载的催化金属颗粒的平均粒径的负载催化剂的方法包括首先将带电荷的载体材料与含有与载体材料相反的电荷的聚合物电解质的溶液混合以吸附 聚合物电解质在支撑材料上。 接着,将其上吸附有聚合物电解质的载体材料与含有与聚合物电解质相反的电荷的催化金属前体离子的溶液混合,以将催化金属前体离子吸附在吸附有聚合物电解质的载体材料上 。 最后,吸附在其上吸附有聚合物电解质的载体材料上的催化金属前体离子被还原为还原溶液中的催化金属。

    Methods for making chlorous acid and chlorine dioxide
    22.
    发明申请
    Methods for making chlorous acid and chlorine dioxide 审中-公开
    制备氯酸和二氧化氯的方法

    公开(公告)号:US20050196337A1

    公开(公告)日:2005-09-08

    申请号:US11071224

    申请日:2005-03-04

    Abstract: Chlorous acid is generated from a chlorite salt precursor, a chlorate salt precursor, or a combination of both by ion exchange. The ion exchange material facilitates the generation of chlorous acid by simultaneously removing unwanted cations from solution and adding hydrogen ion to solution. Chlorine dioxide is generated in a controlled manner from chlorous acid by catalysis. Chlorine dioxide can be generated either subsequent to the generation of chlorous acid or simultaneously with the generation of chlorous acid. For catalysis of chlorous acid to chlorine dioxide, the chlorous acid may be generated by ion exchange or in a conventional manner. Ion exchange materials are also used to purify the chlorous acid and chlorine dioxide solutions, without causing degradation of said solutions, to exchange undesirable ions in the chlorous acid and chlorine dioxide solutions with desirable ions, such as stabilizing ions, and to adjust the pH of chlorous acid and chlorine dioxide solutions.

    Abstract translation: 通过离子交换从亚氯酸盐前体,氯酸盐前体或两者的组合产生氯酸。 离子交换材料通过同时从溶液中除去不需要的阳离子并将氢离子加入到溶液中来促进产生氯酸。 二氧化氯以受控的方式从氯酸通过催化产生。 二氧化氯可以在产生氯酸之后或同时产生亚氯酸时产生。 为了将亚氯酸催化成二氧化氯,氯酸可以通过离子交换或以常规方式产生。 离子交换材料也用于纯化氯酸和二氧化氯溶液,而不会导致所述溶液的降解,从而在氯酸和二氧化氯溶液中用不理想的离子(如稳定离子)交换不需要的离子,并调节pH 氯酸和二氧化氯溶液。

    Process for producing trioxane
    27.
    发明授权
    Process for producing trioxane 失效
    三恶烷生产工艺

    公开(公告)号:US5929257A

    公开(公告)日:1999-07-27

    申请号:US930180

    申请日:1997-10-20

    CPC classification number: C07D323/06

    Abstract: To provide a practical and economical process for producing trioxane from an aqueous formaldehyde solution in the presence of a solid acid catalyst, which permits a stable operation for a long period of time.A process for producing trioxane from an aqueous formaldehyde solution by using a production apparatus comprising two functional steps, i.e. the first functional step of conducting mainly the removal of metallic impurities from the aqueous formaldehyde solution with a substance having an ion-exchanging function and the second functional step of conducting mainly the synthesis of trioxane from the aqueous formaldehyde solution, from which metallic impurities have been removed, with a solid acid catalyst.

    Abstract translation: PCT No.PCT / JP96 / 01086 Sec。 371日期:1997年10月20日 102(e)1997年10月20日PCT PCT 1996年4月22日PCT公布。 WO96 / 33188 PCT出版物 日期1996年10月24日为了提供在固体酸催化剂存在下从甲醛水溶液中生产三恶烷的实用和经济的方法,其允许长时间的稳定操作。 一种由甲醛水溶液生产三恶烷的方法,该方法是使用包括两个功能步骤的制备装置,即主要用具有离子交换功能的物质从甲醛水溶液中除去金属杂质的第一功能步骤, 主要从固体酸催化剂除去金属杂质的甲醛水溶液中主要进行三恶烷的合成的功能性步骤。

    Process for ethyl acetate production
    30.
    发明授权
    Process for ethyl acetate production 失效
    乙酸乙酯生产工艺

    公开(公告)号:US5770761A

    公开(公告)日:1998-06-23

    申请号:US744880

    申请日:1996-11-08

    CPC classification number: C07C67/40

    Abstract: Oxidation of liquid ethanol in the presence of excess liquid ethanol and a supported oxidation catalyst provides a one step process for production of ethyl acetate. The acetic acid produced in the oxidation is absorbed by the excess liquid ethanol, which esterifies to ethyl acetate. Ethyl acetate and water are removed from the process for separation of the ethyl acetate. The oxidation portion of process is preferred with a metallic oxidation catalyst on a hydrophobic support. The esterification portion of the process is preferred with an acidic solid ion exchange resin to promote the esterification. The process can be performed in series in separate steps, or preferably, in parallel in a single vessel, preferably a trickle bed reactor.

    Abstract translation: 在过量的液态乙醇和负载的氧化催化剂的存在下,液态乙醇的氧化提供了生产乙酸乙酯的一步法。 在氧化中产生的乙酸被过量的液体乙醇吸收,其中酯化成乙酸乙酯。 从分离乙酸乙酯的方法中除去乙酸乙酯和水。 方法的氧化部分优选与疏水性载体上的金属氧化催化剂。 该方法的酯化部分优选与酸性固体离子交换树脂以促进酯化。 该方法可以在单独的步骤中串联进行,或者优选在单个容器,优选滴液床反应器中并行进行。

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