关键词: short-path distillation;beeswax;octacosanol;decomposition

Abstract: Octacosanol is purified by agitated short-path distillation (SPD). Effects of evaporation
temperature,number of SPD steps in series and other distillation method on the octacosanol
recovery and decomposition arestudied. Although the experimental results indicate some
decomposition when the mixture of higher primaryaliphatic alcohols is distillated by SPD,
SPD is still an effective method to purify octacosanol. It is concluded thatevaporation
temperature affects greatly on the purity and recovery of octacosanol.

Key words: short-path distillation, beeswax, octacosanol, decomposition