At ground of the condition, we separate the phospholipids prepared by our method, after evaporated by freeze-dry machine, ultimately gain high-pure white lecithin, the final yield is 89.47%.

• 并在此条件基础上对自制的粗品卵磷脂进一步纯化，在冻干机上干燥后，最终得到高纯度的纯白色卵磷脂的固体，收率达89.；47%25。