A topic of great practical and particular industrial interest in recent years has been three-phase azeotropicdistillation or heteroazeotropic distillation.
在工业上，三相共沸精馏过程或称之为非均相恒沸精馏过程在近年来逐渐表现出其特殊应用和巨大的实用价值。
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By controlling the hydration of alkoxide, and with n-butanol azeotropicdistillation and ethanol rinsing methods, the preparation process of superfine titania powder was investigated in detail.
An improved method of synthesizing trimethyl orthoformate through azeotropicdistillation by taking sodium methoxide in methanol and chloroform as raw materials has been presented by the author.