有机化工生产中,提纯、净化是必不可少的工序,而蒸馏则是一种常用的提纯方法.但当蒸馏物要求较高温度时,一般不可能提供几十个压力的高压蒸汽,通常采用铅-锑合金作载热体进行间接加热则可取得良好的效果.几年来我们在使用铝-锑合金作载热体对有机物进行蒸馏的过程中有过一些教训和体会,现介绍如下. Organic chemical production, purification, purification is an essential process, and distillation is a common method of purification, but when the distillate requires higher temperatures, it is generally impossible to provide dozens of pressure high-pressure steam, usually used Lead-antimony alloy as a heating medium for indirect heating can achieve good results in the past few years we use aluminum-antimony as a heating medium for organic matter in the process of distillation have had some lessons and experience, are presented below.