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In this study,extractive distillation has been applied to separate catechol(CAT) from carbofuran phenol(CFP) with high purity and yield.The relative volatility of CFP to CAT was measured,and the choice of separating agents was investigated.The experimental results indicated that CFP/CAT is an azeotropic system with an azeotropic point at 93.40℃/0.400 kPa and an azeotropic mixture containing 49.96% of CFP and 50.04% of CAT.Data from the determination of the relative volatility have shown that separating agents such as diglycol and 4-butylcatechol(4-TBC) are able to increase the relative volatility up to 1.90.In one shot process batch extractive distillation of CFP mixture with 3%(by mass) diglycol as separating agent,the purity and yield of the obtained CFP was 99.0% and 95.0%,respectively,while the distillation without separating agent provided a purity and yield of only 98.0% and 90.0%,respectively.There was no residual separating agent found in the product. 相似文献
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<正>针对《发电厂电气部分》课程传统教学中存在的问题,将工程认证中的OBE理念引入课堂教学,探索并创新构建了该课程的教学改革体系,实现教学效果的持续跟进,以满足工程教育背景下应用型人才培养质量的要求。基于成果导向OBE教育理念,强调“以学生为中心”,同时注重持续改进,是工程教育背景下应用型人才培养的重要理念。《发电厂电气部分》作为能源与动力工程专业重要的专业基础课,具有很强的理论性、 相似文献
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