对八角茴香油 ( anise oil)在三种溶剂中的结晶分离过程进行了研究 ,考察添加剂对结晶析出的影响 ,并用溶解度参数理论阐明溶剂的性质与结晶的关系。结果表明 :乙醇、甲醇的结晶分离性能较为理想 ,而丙酮较差 ;添加剂能显著提高结晶产物的收率 ,但对结晶产物的纯度有一定的负面影响。 The crystallization of anise oil in three solvents was studied. The effects of additives on the crystallization were investigated. The relationship between the properties of the solvent and the crystallization was elucidated by solubility parameter theory. The results showed that the crystallization performance of ethanol and methanol was better than that of acetone, and the addition of acetone could significantly improve the yield of the product, but had a negative effect on the purity of the product.