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通过二元同系物体系（ 乙酸丙酸） 研究蒸馏结晶耦合法的可行性，实验结果表明蒸馏结晶耦合法可以提高产品的纯度、分离效果，强化蒸馏过程．
The feasibility of the distillation-crystallization coupling method was studied by the binary homologous system (acetic acid-propionic acid). The experimental results show that the distillation-crystallization coupling method can improve the purity and separation of products and enhance the distillation process.