申请人:NIPPON PETROCHEMICALS COMPANY, LIMITED
公开号:EP0240665A1
公开(公告)日:1987-10-14
An effective method for refining 2-(aryl substituted)propionic acid or its salt which is characterized in that 2-(aryl substituted)propionic acid or its salt, which contain halogenated by-products,is brought into contact with hydrogen in a liquid phase containing water under a basic condition at temperatures in the range of 20°C to 170°C in the presence of a transition metal of the group VIII in the periodic table as a catalyst, thereby dehalogenating said halogenated by-product and producing highly pure 2-(aryl substituted)propionic acid or its salt.
一种精制 2-(芳基取代)丙酸或其盐的有效方法,其特征在于在 20°C 至 170°C 的温度范围内,在元素周期表中第八族过渡金属作为催化剂的存在下,使含有卤化副产物的 2-(芳基取代)丙酸或其盐在碱性条件下与含水液相中的氢接触,从而使所述卤化副产物脱卤,并生成高纯度的 2-(芳基取代)丙酸或其盐。