分子蒸馏是一种特殊的蒸馏方法,这一蒸馏法的特点是蒸馏质面与冷凝面的距离,较蒸馏质分子之平均自由途径还短些,因此蒸馏质之分子自蒸馏质面离开后,可以不与其他分子质点相遇,而直接到达冷凝面而馏出。所谓分子之平均自由途径,乃一羣分子中每一分子与其他一分子相击遇所需行之途径长度之平均值。如平均每行一厘米的一分子与另一分子相遇,则其平均自由途径即为一厘米。显然,这平 Molecular distillation is a special distillation method. The characteristic of this distillation method is that the distance between the distillation surface and the condensation surface is shorter than the average free path of the distiller’s molecules. Therefore, after the molecules of the distillation substance leave the distillation surface, You can not meet with other molecular particles, and directly reach the condensation surface and distillate. The so-called average free path of the molecules is the average of the lengths of pathways required to meet each other and each other in a group of molecules. If an average of one centimeter per molecule meets another molecule, its average free path is one centimeter. Obviously, this is flat