Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts
    1.
    发明授权
    Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts 有权
    用于使伯醇脱氢以制备羧酸盐的方法和催化剂

    公开(公告)号:US06376708B1

    公开(公告)日:2002-04-23

    申请号:US09547373

    申请日:2000-04-11

    IPC分类号: C07C5116

    摘要: This invention is directed to a process for making a salt of a carboxylic acid. The process comprises contacting a catalyst with an alkaline mixture comprising a primary alcohol. In one embodiment, for example, the catalyst comprises a metal support (preferably a metal sponge support) coated with copper. The support comprises at least about 10% (by weight) non-copper metal, and the copper-containing coating comprises from about 0.005 to about 0.5 grams of copper (per gram of said metal support). In another embodiment, the catalyst comprises a metal support (preferably a metal sponge support) coated with silver. The support comprises at least about 10% (by weight) non-silver metal, and the silver-containing coating comprises from about 0.005 to about 0.5 grams of copper (per gram of said metal support). In another embodiment, the catalyst comprises at least about 15% (by weight) non-copper metal, and at least about 10% (by weight) copper. In yet another embodiment, the catalyst comprises at least about 15% (by weight) non-silver metal, and at least about 10% (by weight) silver. In both these embodiments, it is particularly preferable for the catalyst to be in the form of a metal sponge. This invention is also directed to copper-containing and silver-containing catalysts which may, for example, be used in the above process. This invention is further directed to processes for making such catalysts.

    摘要翻译: 本发明涉及一种制备羧酸盐的方法。 该方法包括使催化剂与包含伯醇的碱性混合物接触。在一个实施方案中,例如,催化剂包含涂覆有铜的金属载体(优选金属海绵载体)。 载体包含至少约10%(重量)的非铜金属,并且含铜涂层包含约0.005至约0.5克铜(每克所述金属载体)。在另一个实施方案中,催化剂包含 金属支撑体(优选金属海绵支撑体)涂覆银。 载体包含至少约10%(重量)的非银金属,并且含银涂层包含约0.005至约0.5克铜(每克所述金属载体)。在另一个实施方案中,催化剂包含 至少约15%(重量)的非铜金属和至少约10%(重量)的铜。 在另一个实施方案中,催化剂包含至少约15%(重量)的非银金属和至少约10%(重量)的银。 在这两个实施方案中,特别优选催化剂为金属海绵形式。本发明还涉及可以在上述方法中使用的含铜和含银催化剂。 本发明还涉及制备这种催化剂的方法。

    Process for the preparation of carboxylic acid salts from primary alcohols
    6.
    发明授权
    Process for the preparation of carboxylic acid salts from primary alcohols 失效
    从伯醇制备羧酸盐的方法

    公开(公告)号:US06646160B2

    公开(公告)日:2003-11-11

    申请号:US09563683

    申请日:2000-05-03

    IPC分类号: C07C51291

    摘要: The present invention provides a new and useful improvement in the process to manufacture a carboxylic acid salt, particularly an amino carboxylic acid salt, from a primary alcohol, particularly a primary aminoalcohol. The process of manufacturing amino carboxylic acid salts comprises contacting an aqueous solution of a primary aminoalcohol with a strong hydroxide base selected from the group consisting of an alkali metal hydroxide, an alkaline earth metal hydroxide, an ammonium hydroxide compound including a tetraalkyl ammonium hydroxide, or the like, in the presence of an effective amount of a catalyst. The catalyst comprises one or more of elements selected from the group consisting of copper, cobalt, nickel, and cadmium as well as optionally lesser amounts of chromium, titanium, niobium, tantalum, zirconium, vanadium, molybdenum, manganese, tungsten, cobalt, nickel, or mixtures thereof. The reaction mixture contains less than about 3000 ppm, preferably less than about 500 ppm, more preferably less than about 100 ppm of oxidized copper (Cu+ and/or Cu2+) during the reaction. The concentration of oxidizing agents in the reactants is minimized to prevent formation of oxidized copper from metallic copper catalyst.

    摘要翻译: 本发明提供了从伯醇,特别是伯氨基醇制备羧酸盐,特别是氨基羧酸盐的方法中的新的和有用的改进。 制备氨基羧酸盐的方法包括将伯氨基醇的水溶液与选自碱金属氢氧化物,碱土金属氢氧化物,氢氧化铵,氢氧化四烷基铵或氢氧化四烷基铵的强氢氧化物碱 在有效量的催化剂存在下进行。 催化剂包含一种或多种选自铜,钴,镍和镉的元素,以及任选少量的铬,钛,铌,钽,锆,钒,钼,锰,钨,钴,镍 ,或其混合物。 反应混合物在反应期间含有小于约3000ppm,优选小于约500ppm,更优选小于约100ppm的氧化铜(Cu 2+和/或Cu 2+)。 反应物中氧化剂的浓度被最小化以防止金属铜催化剂形成氧化铜。