Multi-staged catalyst systems and process for converting alkanes to alkenes and to their corresponding oxygenated products
    2.
    发明授权
    Multi-staged catalyst systems and process for converting alkanes to alkenes and to their corresponding oxygenated products 失效
    多级催化剂体系和将烷烃转化为烯烃及其相应的氧化产物的方法

    公开(公告)号:US08049036B2

    公开(公告)日:2011-11-01

    申请号:US12009556

    申请日:2008-01-18

    IPC分类号: C07C53/00

    摘要: Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared cumulatively from corresponding alkanes utilizing using a multi-staged catalyst system and a multi-stage process which comprises steam cracking of alkanes to corresponding alkenes at flame temperatures and at short contact times in combination with one or more oxidation catalysts for catalytically converting the corresponding alkenes to further corresponding oxygenated products using short contact time reactor conditions.

    摘要翻译: 烯烃,不饱和饱和羧酸,饱和羧酸及其较高的类似物是使用多阶段催化剂体系和多阶段方法,从相应的烷烃累加制备的,该方法包括在火焰温度和短时间接触下将烷烃蒸汽裂解成相应的烯烃 时间与一种或多种氧化催化剂组合,用于使用短接触时间反应器条件将相应的烯烃催化转化为进一步相应的氧化产物。

    Multi-staged catalyst systems and process for converting alkanes to alkenes and to their corresponding oxygenated products
    3.
    发明授权
    Multi-staged catalyst systems and process for converting alkanes to alkenes and to their corresponding oxygenated products 失效
    多级催化剂体系和将烷烃转化为烯烃及其相应的氧化产物的方法

    公开(公告)号:US07361622B2

    公开(公告)日:2008-04-22

    申请号:US11269434

    申请日:2005-11-08

    IPC分类号: B01J31/00

    摘要: Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared cumulatively from corresponding alkanes utilizing using a multi-staged catalyst system and a multi-stage process which comprises steam cracking of alkanes to corresponding alkenes at flame temperatures and at short contact times in combination with one or more oxidation catalysts for catalytically converting the corresponding alkenes to further corresponding oxygenated products using short contact time reactor conditions.

    摘要翻译: 烯烃,不饱和饱和羧酸,饱和羧酸及其较高的类似物是使用多阶段催化剂体系和多阶段方法,从相应的烷烃累加制备的,该方法包括在火焰温度和短时间接触下将烷烃蒸汽裂解成相应的烯烃 时间与一种或多种氧化催化剂组合,用于使用短接触时间反应器条件将相应的烯烃催化转化为进一步相应的氧化产物。

    PROCESS FOR MANUFACTURING REDUCED WATER CONTENT (METH)ACRYLIC ACID
    10.
    发明申请
    PROCESS FOR MANUFACTURING REDUCED WATER CONTENT (METH)ACRYLIC ACID 审中-公开
    制备减少水含量(METH)丙烯酸的方法

    公开(公告)号:US20110105708A1

    公开(公告)日:2011-05-05

    申请号:US12914396

    申请日:2010-10-28

    IPC分类号: C08F20/06 C07C57/04 C07C51/44

    摘要: A method is provided herein for purifying (meth)acrylic acid to provide a purified (meth)acrylic acid product having a low aldehyde concentration and not more than 0.2 wt % water. One embodiment of the method includes distilling (meth)acrylic acid in the presence of an aldehyde treating compound. Another embodiment of the method includes also distilling crude (meth)acrylic acid in the presence of a reactive drying agent. (Meth)acrylic acid produced in this manner is especially suitable for use in specialty (meth)acrylic acid polymers, such as for example superabsorbent polymers, binders, and ethylene-(M)AA copolymers.

    摘要翻译: 本文提供一种纯化(甲基)丙烯酸以提供具有低醛浓度和不超过0.2重量%水的纯化(甲基)丙烯酸产物的方法。 该方法的一个实施方案包括在醛处理化合物的存在下蒸馏(甲基)丙烯酸。 该方法的另一个实施方案还包括在反应性干燥剂存在下蒸馏粗(甲基)丙烯酸。 以这种方式生产的(甲基)丙烯酸特别适用于特种(甲基)丙烯酸聚合物,例如超吸收聚合物,粘合剂和乙烯 - (M)AA共聚物。