Multi-staged catalyst systems and process for converting alkanes to alkenes and to their corresponding oxygenated products
    4.
    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。

    Multi-staged catalyst systems and process for converting alkanes to alkenes and to their corresponding oxygenated products
    5.
    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。

    Process for converting a hydroxycarboxylic acid, or salts thereof, to an unsaturated carboxylic acid and/or its esters
    7.
    发明申请
    Process for converting a hydroxycarboxylic acid, or salts thereof, to an unsaturated carboxylic acid and/or its esters 有权
    将羟基羧酸或其盐转化为不饱和羧酸和/或其酯的方法

    公开(公告)号:US20090076297A1

    公开(公告)日:2009-03-19

    申请号:US12283050

    申请日:2008-09-09

    IPC分类号: C07C67/30 C07C51/347

    摘要: A process for converting a salt of a hydroxycarboxylic acid to an unsaturated carboxylic acid, or esters thereof. The process involves converting an ammonium salt of a hydroxycarboxylic acid in aqueous solution to a corresponding hydroxycarboxylic acid and ammonium cation in aqueous solution; and separating the ammonium cation from the aqueous solution, leaving the hydroxycarboxylic acid in aqueous solution. The converting and separating steps may be accomplished by employing a hydrophobic acid or an acid ion exchange resin, each of which must have an acid dissociation constant, i.e., pKa, at least 0.5 less that that of the salt of the hydroxycarboxylic acid. Where a hydrophobic acid is used, it must be immiscible in water, and its salt must also be immiscible in water, and the resulting multi-phase solution comprises an aqueous phase comprising the corresponding hydroxycarboxylic acid, as well as a non-aqueous phase comprising a neutralized acid. Alternatively, where the ion exchange resin is used, the aqueous solution of the ammonium salt of a hydroxycarboxylic acid is contacted with the resin, thereby converting the salt to a hydroxycarboxylic acid and capturing the ammonium cations on the resin. In either case, the aqueous solution is treated, such as by heating, to separate and recover the hydroxycarboxylic acid. The non-aqueous phase or resin is treated to separate and recover ammonia useful for preparing additional ammonium salt of a hydroxycarboxylic acid.

    摘要翻译: 将羟基羧酸盐转化为不饱和羧酸的方法或其酯。 该方法包括将羟基羧酸的铵盐在水溶液中转化为相应的羟基羧酸和铵阳离子在水溶液中; 并从铵水溶液中分离铵阳离子,使羟基羧酸在水溶液中。 转化和分离步骤可以通过使用疏水性酸或酸性离子交换树脂来实现,每个酸性离子交换树脂必须具有酸解离常数即pKa,与羟基羧酸的盐相比至少少0.5倍。 当使用疏水性酸时,其必须在水中不混溶,并且其盐也必须在水中不混溶,并且所得多相溶液包含含有相应的羟基羧酸的水相,以及包含 中和的酸。 或者,使用离子交换树脂时,羟基羧酸的铵盐的水溶液与树脂接触,由此将盐转化为羟基羧酸,并将铵阳离子捕获在树脂上。 在任一情况下,例如通过加热处理水溶液以分离和回收羟基羧酸。 处理非水相或树脂以分离和回收可用于制备羟基羧酸的另外的铵盐的氨。

    Process for production of acrolein from glycerol
    8.
    发明授权
    Process for production of acrolein from glycerol 有权
    从甘油生产丙烯醛的方法

    公开(公告)号:US08198477B2

    公开(公告)日:2012-06-12

    申请号:US12592182

    申请日:2009-11-20

    IPC分类号: C07C51/16 C07C45/00

    摘要: The present invention relates to a process for producing acrolein by liquid phase dehydration of glycerol by preparing a mixture of a catalyst suspended in an organic solvent comprising one or more vinyl polymers and glycerol; and then mixing and heating the mixture to between 150° C. and 350° C. to dehydrate the glycerol and form acrolein. The vinyl polymers are selected from the group consisting of polyolefins, polystyrene, and mixtures thereof. The polyolefins may be polyethylene, polypropylene, polybutylene, polyisobutylene, polyisoprene, polypentene, or mixtures thereof. The acrolein may be subjected to vapor phase oxidation in the presence of a catalyst, such as a mixed metal oxide, to produce acrylic acid.

    摘要翻译: 本发明涉及通过制备悬浮在包含一种或多种乙烯基聚合物和甘油的有机溶剂中的催化剂的混合物来制备丙烯醛的液相脱水制备丙烯醛的方法; 然后将混合物混合并加热至150℃至350℃,使甘油脱水并形成丙烯醛。 乙烯基聚合物选自聚烯烃,聚苯乙烯及其混合物。 聚烯烃可以是聚乙烯,聚丙烯,聚丁烯,聚异丁烯,聚异戊二烯,聚戊烯或其混合物。 丙烯醛可以在诸如混合金属氧化物的催化剂存在下进行气相氧化,以产生丙烯酸。

    Process for converting a hydroxycarboxylic acid, or salts thereof, to an unsaturated carboxylic acid and/or its esters
    9.
    发明授权
    Process for converting a hydroxycarboxylic acid, or salts thereof, to an unsaturated carboxylic acid and/or its esters 有权
    将羟基羧酸或其盐转化为不饱和羧酸和/或其酯的方法

    公开(公告)号:US07754916B2

    公开(公告)日:2010-07-13

    申请号:US12283050

    申请日:2008-09-09

    IPC分类号: C07B35/06

    摘要: A process for converting a salt of a hydroxycarboxylic acid to an unsaturated carboxylic acid, or esters thereof. The process involves converting an ammonium salt of a hydroxycarboxylic acid in aqueous solution to a corresponding hydroxycarboxylic acid and ammonium cation in aqueous solution; and separating the ammonium cation from the aqueous solution, leaving the hydroxycarboxylic acid in aqueous solution. The converting and separating steps may be accomplished by employing a hydrophobic acid or an acid ion exchange resin, each of which must have an acid dissociation constant, i.e., pKa, at least 0.5 less that that of the salt of the hydroxycarboxylic acid. Where a hydrophobic acid is used, it must be immiscible in water, and its salt must also be immiscible in water, and the resulting multi-phase solution comprises an aqueous phase comprising the corresponding hydroxycarboxylic acid, as well as a non-aqueous phase comprising a neutralized acid. Alternatively, where the ion exchange resin is used, the aqueous solution of the ammonium salt of a hydroxycarboxylic acid is contacted with the resin, thereby converting the salt to a hydroxycarboxylic acid and capturing the ammonium cations on the resin. In either case, the aqueous solution is treated, such as by heating, to separate and recover the hydroxycarboxylic acid. The non-aqueous phase or resin is treated to separate and recover ammonia useful for preparing additional ammonium salt of a hydroxycarboxylic acid.

    摘要翻译: 将羟基羧酸盐转化为不饱和羧酸的方法或其酯。 该方法包括将羟基羧酸的铵盐在水溶液中转化为相应的羟基羧酸和铵阳离子在水溶液中; 并从铵水溶液中分离铵阳离子,使羟基羧酸在水溶液中。 转化和分离步骤可以通过使用疏水性酸或酸性离子交换树脂来实现,每个酸性离子交换树脂必须具有酸解离常数即pKa,与羟基羧酸的盐相比至少少0.5倍。 当使用疏水性酸时,其必须在水中不混溶,并且其盐也必须在水中不混溶,并且所得多相溶液包含含有相应的羟基羧酸的水相,以及包含 中和的酸。 或者,使用离子交换树脂时,羟基羧酸的铵盐的水溶液与树脂接触,由此将盐转化为羟基羧酸,并将铵阳离子捕获在树脂上。 在任一情况下,例如通过加热处理水溶液以分离和回收羟基羧酸。 处理非水相或树脂以分离和回收可用于制备羟基羧酸的另外的铵盐的氨。

    Process for production of acrolein from glycerol
    10.
    发明申请
    Process for production of acrolein from glycerol 有权
    从甘油生产丙烯醛的方法

    公开(公告)号:US20100168472A1

    公开(公告)日:2010-07-01

    申请号:US12592182

    申请日:2009-11-20

    IPC分类号: C07C51/16 C07C45/29

    摘要: The present invention relates to a process for producing acrolein by liquid phase dehydration of glycerol by preparing a mixture of a catalyst suspended in an organic solvent comprising one or more vinyl polymers and glycerol; and then mixing and heating the mixture to between 150° C. and 350° C. to dehydrate the glycerol and form acrolein. The vinyl polymers are selected from the group consisting of polyolefins, polystyrene, and mixtures thereof. The polyolefins may be polyethylene, polypropylene, polybutylene, polyisobutylene, polyisoprene, polypentene, or mixtures thereof. The acrolein may be subjected to vapor phase oxidation in the presence of a catalyst, such as a mixed metal oxide, to produce acrylic acid.

    摘要翻译: 本发明涉及通过制备悬浮在包含一种或多种乙烯基聚合物和甘油的有机溶剂中的催化剂的混合物来制备丙烯醛的液相脱水制备丙烯醛的方法; 然后将混合物混合并加热至150℃至350℃,使甘油脱水并形成丙烯醛。 乙烯基聚合物选自聚烯烃,聚苯乙烯及其混合物。 聚烯烃可以是聚乙烯,聚丙烯,聚丁烯,聚异丁烯,聚异戊二烯,聚戊烯或其混合物。 丙烯醛可以在诸如混合金属氧化物的催化剂存在下进行气相氧化,以产生丙烯酸。