树脂在癸二酸二甲酯水解与分离中的应用

用强酸或强碱作水解催化剂,容易腐蚀设备。癸二酸与其二甲酯性质非常接近,它们又都溶解于乙醇、醚、酮中,用普通过滤及重结晶无法达到分离目的。利用树脂的酸碱催化与选择吸附两种功能,将树脂先后应用于癸二酸二甲酯水解反应与吸附分离,此方法在工业生产上也同样适用,能大大提高经济效益.

APPLYING RES IN TO HYDROLYSIS AND SEPARATION OF DIMETHYL SEBACATE

Using strong acid or strong base as a hydrolyst is liable to corrode equipments:There is hardly any difference between sebacic acid and dimethyl sebaoate, each of them being dissolvable in ethanol, ether and ketone. To keep sebaoio aoid separate from dimethyl sebacate by ordinary filtration or recrystallization method is too difficult for one to hope to succeed.Making full use of acidic, basic catalysis and selected adsorption of resin, a new process of applying resin to hydrolysis and separation of dimethyl sebacate is introduced. This new process is economically suitable for industrial production.