Production of maleic or fumaric acid from levulinic acid
    57.
    发明授权
    Production of maleic or fumaric acid from levulinic acid 有权
    从乙酰丙酸生产马来酸或富马酸

    公开(公告)号:US09187399B2

    公开(公告)日:2015-11-17

    申请号:US14592435

    申请日:2015-01-08

    IPC分类号: C07C51/367 B01J8/02

    摘要: The production of maleic acid and fumaric acid (or the anhydride form of either, maleic anhydride) via gas-phase, oxidative cleavage of levulinic acid in a single packed bed reactor over a reducible oxide catalyst. The production may be carried out in an initial mixing vessel into which levulinic acid is continuously charged and mixed with both inert (He, N2, Ar, etc.) and oxidizing (O2, air, etc.) gases. The feed stream can then be safely heated to reaction temperature, which generally ranges from 200-500° C., without initiating polymerization, in a second stage preheater that thermally equilibrates the gaseous mixture of LA, O2, and inert diluent and fed to a third stage catalytic reactor for final processing.

    摘要翻译: 通过气相生产马来酸和富马酸(或其酐形式的马来酸酐),通过可还原氧化物催化剂在单个填充床反应器中氧化裂解乙酰丙酸。 生产可以在初始混合容器中进行,其中乙酰丙酸被连续加入并与惰性(He,N 2,Ar等)和氧化(O 2,空气等)气体混合。 然后可以将进料流安全地加热至反应温度,反应温度通常在200-500℃的范围内,而不引发聚合,在第二阶段预热器中,其使LA,O2和惰性稀释剂的气态混合物热平衡并进料至 用于最终加工的第三级催化反应器。

    PROCESS FOR PRODUCING BOTH BIOBASED SUCCINIC ACID AND 2,5-FURANDICARBOXYLIC ACID
    58.
    发明申请
    PROCESS FOR PRODUCING BOTH BIOBASED SUCCINIC ACID AND 2,5-FURANDICARBOXYLIC ACID 审中-公开
    生产双酚化酸和2,5-呋喃糖基酸的方法

    公开(公告)号:US20140343305A1

    公开(公告)日:2014-11-20

    申请号:US14239822

    申请日:2012-08-28

    IPC分类号: C07D307/68 C07C51/245

    摘要: A process is provided for carrying out an oxidation on a feed including levulinic acid and/or a levulinic acid oxidation precursor to succinic acid, one or more furanic oxidation precursors of 2,5-furandicarboxylic acid and a catalytically effective combination of cobalt, manganese, and bromide components for catalyzing the oxidation of the levulinic acid component and of the one or more furanic oxidation precursors to produce both succinic acid and 2,5-furandicarboxylic acid products, which process comprises supplying the feed to a reactor vessel, supplying an oxidant, reacting the levulinic acid component and the one or more furanic oxidation precursors with the oxidant to produce both succinic acid and 2,5-furandicarboxylic acid (FDCA) and then recovering the succinic acid and FDCA products. A crude dehydration product from the dehydration of fructose, glucose or both, including 5-hydroxymethylfurfural, can be directly oxidized by the process to produce 2,5-furandicarboxylic acid and succinic acid.

    摘要翻译: 提供了一种方法,用于在包含乙酰丙酸和/或乙酰丙酸氧化前体的进料上进行氧化,所述前体包含琥珀酸,一种或多种2,5-呋喃二羧酸的呋喃氧化前体和催化有效的钴,锰, 以及用于催化乙酰丙酸组分和一种或多种呋喃氧化前体的氧化以产生琥珀酸和2,5-呋喃二羧酸产物的溴化物组分,该方法包括将进料供应到反应器容器中,供应氧化剂, 使乙酰丙酸组分和一种或多种呋喃氧化前体与氧化剂反应以产生琥珀酸和2,5-呋喃二羧酸(FDCA),然后回收琥珀酸和FDCA产物。 由脱水果糖,葡萄糖或两者(包括5-羟甲基糠醛)的粗脱水产物可直接氧化,生成2,5-呋喃二羧酸和琥珀酸。

    Improved Process for the Production of Derivatives of Saturated Carboxylic Acids
    59.
    发明申请
    Improved Process for the Production of Derivatives of Saturated Carboxylic Acids 有权
    用于生产饱和羧酸衍生物的改进方法

    公开(公告)号:US20080245995A1

    公开(公告)日:2008-10-09

    申请号:US12067343

    申请日:2006-09-21

    IPC分类号: C09K3/00 C07C51/21

    摘要: A process for the production of carboxylic acids and their derivatives comprising the steps of: (c) reacting a derivative of an unsaturated fatty acid with an oxidizing compound in the presence of a catalyst capable of catalysing the reaction of oxidation of the double olefinic bond of the derivative of the unsaturated fatty acid so as to obtain as intermediate product of reaction a vicinal diol; and (d) reacting said intermediate compound with oxygen, or a compound containing oxygen, in the presence of a catalyst capable of catalysing the reaction of oxidation of the hydroxyl groups of the vicinal diol to carboxylic groups, characterized in that both of the steps (a) and (b) are carried out in the absence of added organic solvent and in that the water/diol ratio in the reaction of step (b) is less than 1:1.

    摘要翻译: 一种制备羧酸及其衍生物的方法,包括以下步骤:(c)使不饱和脂肪酸的衍生物与氧化性化合物在催化剂存在下反应,所述催化剂能够催化双烯键的氧化反应 不饱和脂肪酸的衍生物,以获得邻位二醇的中间产物的反应; 和(d)在催化剂存在下使所述中间体化合物与氧气或含氧化合物反应,所述催化剂能够催化邻位二醇的羟基氧化成羧酸的反应,其特征在于两个步骤 a)和(b)在没有添加的有机溶剂的情况下进行,并且步骤(b)的反应中的水/二醇比例小于1:1。