申请人:ARCO Chemical Technology, L.P.
公开号:EP0506424A1
公开(公告)日:1992-09-30
An improved process for the hydrolysis and purification of an alkoxylated polyol containing a ketal protective functionality, and which may be employed to prepare reduced calorie esterified alkoxylated polyol fat mimetics useful in cooking and in food compositions, comprises contacting an aqueous mixture of the protected alkoxylated polyol with an acid to hydrolyse and thus deprotect the alkoxylated polyol,adding a base to neutralise the acid and cause the mixture to form a first phase containing the deprotected alkoxylated polyol and a second phase containing predominantly water, and separating the phases. The protected alkoxylated polyol may be formed by alkoxylating a protected polyol. The deprotected alkoxylated polyol may subsequently be esterified.
一种改进的工艺用于水解和纯化含有酮缩保护官能基的烷氧基聚醇,可用于制备在烹饪和食品组合中有用的低热量酯化烷氧基聚醇脂肪模拟物,包括将受保护的烷氧基聚醇的水混合物与酸接触以水解和去保护烷氧基聚醇,添加碱以中和酸并使混合物形成含有去保护的烷氧基聚醇的第一相和主要含水的第二相,并分离相。受保护的烷氧基聚醇可以通过烷氧基化受保护的聚醇形成。然后可以对去保护的烷氧基聚醇进行酯化处理。