负载稀土型酸活化膨润土的酯化催化活性

负载稀土型酸活化膨润土的酯化催化活性李永绣，冯天泽，胡平贵，何小彬，辜子英，廖荣辉（南昌大学化学系南昌３３００４７）关键词稀土，膨润土，催化酯化可用稀土、膨润土单独作酯化催化剂，但活性不高［１～３］。本文将稀土用离子交换的方法负载到酸活化膨润土中，寻...

Catalytic Esterification Activity of Activited Bentonite Loaded with Rare Earth

The catalytic esterification activity of some bentonite samples treated with different methods were characterized.It was found that the catalytic activity of activited bentonite could be increased greatly by loading with rare earth. However,no evident increase of catalytic activity with the amount of loaded rare earth in bentonite was observed in high rare earth content range.These results showed that the surface acidity and rare earth accounted for the catalytic activity and the former factor played a more important role than the other in the catalytic esterification.