Distillation boiling point difference between the larger mixed liquid, the boiling point of lower first steamed out of the higher boiling point then steamed, not volatile to remain in the distillation, this can be achieved by separation and purification purposes.

Boiling point difference is the distillation of the mixed liquid, boiling point, first at a lower boiling point than steamed, then steamed out of the high, non-volatile in the vaporizer, this separation and purification can be achieved.

When distillation boiling point difference big mix liquid, the boiling point junior distils off first, the boiling point high afterwards distils off, does not volatilize keeps in the distiller, like this, may achieve the separation and the depuration goal.

Distillation boiling point difference greater mixing of liquid, boiling point lower to steam out, then steamed out of high boiling point, do not remain in the distillation of volatile, so that the purpose of separation and purification can be achieved.

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