水杨醇及其钠盐是合成医药和农药的重要中间体[1～ 4 ] ,其中水杨醇钠的应用尤为广泛。水杨醇在水中溶解度较大 ,需用萃取方法分离。在实验室里一般都采用乙醚作萃取剂 ,但在工业生产中 ,则不宜采用。原因是 :1 .乙醚易燃、易爆 ,不利于安全生产 ;2 .乙醚易挥发、损耗大、污染 Salicylalcohol and its sodium salt are important intermediates in the synthesis of pharmaceuticals and pesticides [1 ~ 4], of which sodium salicylate is more widely used. Salicylalcohol in water solubility, need to be separated by extraction. In the laboratory are generally used ether extractant, but in industrial production, it is not appropriate to use. The reason is: 1. Ether flammable, explosive, is not conducive to safe production; 2. Ether is volatile, loss, pollution