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    • 4. 发明公开
    • ACETIC ACID PRODUCTION PROCESS
    • VERFAHREN ZUR HERSTELLUNG VONESSIGSÄURE
    • EP3110785A1
    • 2017-01-04
    • EP15755596.2
    • 2015-02-24
    • LyondellBasell Acetyls, LLC
    • HALLINAN, NoelSALISBURY, Brian A.WHITE, Daniel F.RAMAGE, David L.
    • C07C51/15C07C53/08C07C51/573
    • Processes for producing acetic acid and determining corrosion therein are described herein. The processes generally include contacting methanol and carbon monoxide in the presence of a liquid reaction medium under carbonylation conditions sufficient to form acetic acid, wherein the liquid reaction medium includes: a carbonylation catalyst selected from rhodium catalysts, iridium catalysts and palladium catalysts; from 1 wt. % to 14 wt. % water; and one or more, in-situ generated derivatives of the one or more additives and combinations thereof; wherein the one or more additives are independently selected from non-benzoyl containing pentavalent phosphine oxides, compound mixtures of at least four phosphine oxides and pentavalent aryl or alkaryl phosphine oxides including one or more benzoyl groups; and recovering acetic acid from the process.
    • 本文描述了生产乙酸和确定腐蚀的方法。 该方法通常包括在足以形成乙酸的羰基化条件下在液体反应介质存在下使甲醇和一氧化碳接触,其中液体反应介质包括:选自铑催化剂,铱催化剂和钯催化剂的羰基化催化剂; 从1重量% %至14重量% % 水; 和一种或多种原位产生的一种或多种添加剂及其组合的衍生物; 其中所述一种或多种添加剂独立地选自非苯甲酰基的五价氧化膦,至少四种氧化膦的化合物混合物和包括一个或多个苯甲酰基的五价芳基或烷芳基氧化膦; 并从该方法回收乙酸。