摘要
介绍了结晶法精制苯甲酸的三种工艺—升华结晶 ,溶液结晶 ,熔融结晶。重点评述了熔融结晶法的装置与应用现状 。
In this paper, three refining processes of high purity benzoic acid by crystallization are discussed, i,e. sublimate crystallization, solution crystallization and melts crystallization. In particular, emphasis is laid on the progress of refining benzoic acid by melts crystallization methods. Then, a conclusion and an anticipation on the developing tendency of refining benzoic acid are given.
基金
1999年国家科技部基金资助
