苯甲酸、对氨基苯甲酸乙酯、乙酰苯胺三组分分离实验教学设计

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Design of a Separation Experiment for Three Components of Benzoic Acid, Ethyl P-Aminobenzoate and Acetanilide

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表2 化工2001班三组分分离实验结果

实验台编号 先加酸实验结果 实验台编号 先加碱实验结果 对氨基苯甲酸乙酯回收率 苯甲酸回收率 乙酰苯胺回收率 对氨基苯甲酸乙酯回收率 苯甲酸回收率 乙酰苯胺回收率 1 70.0% 66.0% 71.6% 2 43.0% 62.0% 59.7% 3 54.0% 58.0% 76.3% 4 60.0% 83.8% 53.3% 5 61.3% 58.8% 70.0% 6 44.5% 52.5% 33.1% 7 82.0% 78.0% 76.0% 8 – 68.8% 81.3% 9 48.8% 52.5% 74.5% 10 46.3% 56.3% 52.5% 11 51.3% 65.0% 58.5% 12 75.0% 84.0% 77.1% 13 46.0% 78.5% 39.0% 14 65.0% 77.0% 68.0% 15 52.0% 56.0% 41.3% 16 53.7% 69.8% 56.8% 17 60.4% 54.1% 63.8% 18 62.5% 60.0% 26.3% 19 57.5% 88.3% 64.9% 20 58.8% 61.3% 51.3% 21 36.3% 63.8% 39.1% 22 61.3% 58.8% 50.0% 23 31.0% 41.0% – 24 47.5% 68.8% 82.8% 25 – 46.3% 45.6%