Method for separating and purifying carboxylic acid derived from the direct oxidation of a hydrocarbon
    1.
    发明授权
    Method for separating and purifying carboxylic acid derived from the direct oxidation of a hydrocarbon 失效
    用于分离和纯化衍生自烃的直接氧化的羧酸的方法

    公开(公告)号:US06563001B1

    公开(公告)日:2003-05-13

    申请号:US09787116

    申请日:2001-06-12

    IPC分类号: C07C5131

    摘要: The present invention relates to an improved process for processing the reaction mixture from the direct oxidation of hydrocarbon into carboxylic acid, using molecular oxygen or a gas containing it, in the liquid phase, in a solvent and in the presence of a catalyst dissolved in the reaction medium, characterized in that the said process comprises: when the composition of the reaction mixture allows it, a decantation into two liquid phases: a nonpolar upper phase and a polar lower phase; a distillation of the said lower phase or, where appropriate, of all of the reaction mixture, thus separating, on the one hand, a distillate and, on the other hand, the distillation residue comprising the acids formed, the catalyst, the heavy compounds, at least some of the solvent and, if any, the reaction intermediates and side products; a purification treatment by oxidation, using molecular oxygen or a gas containing it or using oxygen donors, of the distillation residue obtained above, a distillation of the reaction solvent and the reaction intermediates and side products which may still remain in the mixture, a crystallization of the carboxylic acid produced in the reaction; a recrystallization from water of the carboxylic acid produced in the reaction.

    摘要翻译: 本发明涉及一种改进的方法,用于在液相中,在溶剂中和在溶解在该溶剂中的催化剂存在下,使用分子氧或含有它的气体将烃直接氧化成羧酸, 反应介质,其特征在于所述方法包括:当反应混合物的组成允许时,倾析成两个液相:非极性上相和极性下相;所述下相的蒸馏,或在适当的情况下, 一方面分离出馏出物,另一方面,分离形成的酸的蒸馏残渣,催化剂,重质化合物,至少一些溶剂,如果有的话, 反应中间体和副产物;通过氧化,使用分子氧或含有它或使用氧供体的气体,上述获得的蒸馏残渣进行纯化处理,蒸馏o 反应溶剂和反应中间体和副产物,它们仍然残留在混合物中,结晶反应中产生的羧酸;从反应中产生的羧酸的水中重结晶。

    Oxidation of aromatic compounds substituted by oxidizable alkyl moieties
    3.
    发明授权
    Oxidation of aromatic compounds substituted by oxidizable alkyl moieties 失效
    由可氧化烷基部分取代的芳族化合物的氧化

    公开(公告)号:US5354919A

    公开(公告)日:1994-10-11

    申请号:US84028

    申请日:1993-06-29

    摘要: Aromatic compounds bearing oxidizable alkyl substituents, e.g., alkoxylated and/or hydroxylated such substrates, notably the phenolics/cresols, are selectively oxidized, e.g., into hydroxybenzaldehydes, by reacting same with appropriate oxidizing agents, in an aqueous reaction medium, in the presence of a catalytically effective amount of a solid, palladium-containing oxidation catalyst (optionally containing a cocatalytically effective amount of tin, germanium, tellurium and/or copper).

    摘要翻译: 具有可氧化烷基取代基的芳香族化合物,例如,烷氧基化和/或羟基化的这些底物,特别是酚类/甲酚,通过在适当的氧化剂中,在水性反应介质中,在存在 催化有效量的固体含钯氧化催化剂(任选地含有助催化有效量的锡,锗,碲和/或铜)。

    Hydrocarbon, alcohol and/or ketone oxidation method
    4.
    发明授权
    Hydrocarbon, alcohol and/or ketone oxidation method 失效
    烃,醇和/或酮氧化方法

    公开(公告)号:US06762319B1

    公开(公告)日:2004-07-13

    申请号:US09937764

    申请日:2002-04-16

    IPC分类号: C07C5116

    摘要: The present invention relates to the oxidation, by means of oxygen or a gas containing it, of hydrocarbons to the corresponding carboxylic acids, alcohols and/or ketones or of alcohols and/or ketones to the corresponding carboxylic acids. It consists more precisely in a process for oxidizing hydrocarbon, alcohol and/or ketone, using oxygen or a gas containing it, in liquid phase and in the presence of a catalyst dissolved in the reaction medium, characterized in that the catalyst comprises a soluble manganese compound and at least one soluble chromium compound.

    摘要翻译: 本发明涉及通过氧气或含有它的气体将烃与相应的羧酸,醇和/或酮或醇和/或酮与相应的羧酸氧化。 它更精确地包括在液相中和在溶解在反应介质中的催化剂存在下,使用氧气或含有它的气体氧化烃,醇和/或酮的方法,其特征在于催化剂包含可溶性锰 化合物和至少一种可溶性铬化合物。

    Method for crystallizing carboxylic acid
    5.
    发明授权
    Method for crystallizing carboxylic acid 失效
    结晶羧酸的方法

    公开(公告)号:US06559339B1

    公开(公告)日:2003-05-06

    申请号:US09787127

    申请日:2001-05-31

    IPC分类号: C07C5142

    CPC分类号: C07C51/42 C07C51/43 C07C55/14

    摘要: The present invention relates to a process for the crystallization of carboxylic acid, more particularly adipic acid, and a process for manufacturing crystalline carboxylic acid, more specifically a process for treating the reaction medium resulting from the direct oxidation of a hydrocarbon into carboxylic acid such as adipic acid, for example. More specifically, the invention relates to the crystallization of adipic acid from an organic solvent, thus removing the organic impurities contained in the said acid and thus optionally facilitating its purification by a crystallization from water.

    摘要翻译: 本发明涉及一种结晶羧酸,更特别是己二酸的方法,以及一种制备结晶羧酸的方法,更具体地说,涉及一种处理由烃直接氧化成羧酸的反应介质的方法,例如 己二酸。 更具体地,本发明涉及己二酸从有机溶剂中的结晶,从而除去所述酸中所含的有机杂质,从而任选地通过从水中结晶而促进其纯化。

    Co/Cr catalyzyed oxidation of cyclohexane
    6.
    发明授权
    Co/Cr catalyzyed oxidation of cyclohexane 失效
    Co / Cr催化氧化环己烷

    公开(公告)号:US6147256A

    公开(公告)日:2000-11-14

    申请号:US58175

    申请日:1998-04-10

    CPC分类号: C07C51/313

    摘要: Carboxylic acids, e.g., adipic acid, are more selectively prepared by oxidizing cyclohexane with oxygen or an oxygen-containing gas, in liquid phase, in a solvent reaction medium which comprises a polar protic or aprotic solvent, and also in the presence of a catalytically effective amount of catalyst values dissolved in said solvent reaction medium, the catalyst values comprising at least one solvent-soluble cobalt compound and at least one solvent-soluble chromium compound.

    摘要翻译: 通过在包含极性质子或非质子溶剂的溶剂反应介质中以及在催化剂存在下,在液相中用氧或含氧气体氧化环己烷,可以更有选择地制备羧酸,例如己二酸 有效量的溶解在所述溶剂反应介质中的催化剂值,所述催化剂值包含至少一种溶剂可溶性钴化合物和至少一种溶剂可溶性铬化合物。

    Preparation of dialkoxybutenes
    10.
    发明授权
    Preparation of dialkoxybutenes 失效
    DIALKOXYBUTENES的制备

    公开(公告)号:US5159120A

    公开(公告)日:1992-10-27

    申请号:US714584

    申请日:1991-06-13

    CPC分类号: C07C41/06

    摘要: Dialkoxybutenes are selectively prepared in high yields by reacting 1,3-butadiene with an alcohol in the presence of oxygen and a catalytically effective amount of solid particulates which comprise a catalytically active phase deposited onto particles of a support therefor, such catalytically active phase comprising at least one Group VIII noble metal first component, at least one tellurium, selenium and/or sulfur second component, and, optionally, at least one bismuth, antimony, copper and/or tin third component.

    摘要翻译: 通过在氧的存在下使1,3-丁二烯与醇反应并且催化有效量的固体颗粒包含沉积在其载体的颗粒上的催化活性相来选择性地制备二烷氧基丁烯,所述催化活性相包含在 至少一种VIII族贵金属第一组分,至少一种碲,硒和/或硫第二组分,以及任选的至少一种铋,锑,铜和/或锡第三组分。