介绍一种可折卸指形加热管的无料盘药品精制真空干燥箱。
A kind medicine refining used vacuum drying box without tray, in which there are finger type heating pipes, was introduced.
从制取方法上来讲，多效真空蒸发制盐是生产精制盐及高纯工业盐的重要方法。
In respect of the producing method, refined and high unmixed salt is usually made by multiple effect evaporation in vacuum, when man-made bittern is needed.
同时改进了精制工艺，用石油醚-苯进行结晶代替高真空蒸馏，简化了工艺，有利于工业化生产。
Meanwhile the refining process was improved, using crystallization from petroleum-benzene instead of high vacuum distillation. The process was simplified for the benefit of industry production.
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