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    • 63. 发明授权
    • Process for the manufacture of monochloroacetyl chloride
    • 单氯化乙烯的制备方法
    • US3686302A
    • 1972-08-22
    • US3686302D
    • 1969-10-15
    • KNAPSACK AG
    • OPITZ WOLFGANG
    • C07C51/60C07C53/20
    • C07C51/60C07C53/48
    • Production of monochloroacetyl chloride by reacting monochloroacetic acid with phosgene at an elevated temperature. Gaseous phosgene is introduced into a monochloroacetic acid melt heated to a temperature between about 90* and 130* C and having a finely divided catalyst therein, consisting of one or more noble metals belonging to group VIII of the periodic system, or a suitable salt thereof, crude monochloroacetyl chloride in vapor form is continually removed from the reaction mixture, the vaporous matter is condensed and distilled to isolate pure monochloroacetyl chloride therefrom.
    • 在升高的温度下通过一氯乙酸与光气反应生产一氯乙酰氯。 将气体光气引入加热至约90℃至130℃的一氯乙酸熔体,并在其中具有细分散的催化剂,其由一种或多种属于周期性体系的VIII族的贵金属或其合适的盐组成 蒸气形式的粗氯乙酰氯不断从反应混合物中除去,将蒸发的物质冷凝并蒸馏,以从其中分离纯一氯乙酰氯。