| 用升华法从燕山聚脂厂废渣中提取苯甲酸 |
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| 引用本文： | 刘风英,王玲,刘同银. 用升华法从燕山聚脂厂废渣中提取苯甲酸[J]. 北京石油化工学院学报, 1995, 0(1) |
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| 作者姓名： | 刘风英 王玲 刘同银 |
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| 作者单位： | 北京石油化工学院化工系(刘风英，王玲)，北京石油化工学院化工系(刘同银) |
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| 摘 要： | 叙述了燕山聚脂厂废渣中苯甲酸的提取方法。利用苯甲酸的升华特性,将温度控制在100～110℃,使占废渣总量近40％的苯甲酸得到了回收,回收率大于99％。方法简便易行,准确度高,设备简单经济。并对升华出的苯甲酸的纯度用紫外光谱法进行了分析,方法回收率为99.0％～99.8％,精密度为0.025％,升华出的苯甲酸纯度为98.3％。
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| 关 键 词： | 苯甲酸 升华法 紫外光谱法 红外光谱法 |
Recovery of Benzoic Acid from Waste Residues of Yan Shan Polyester Plant by Sublimating |
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| Liu Fengying Wang Ling Liu Tongyin. Recovery of Benzoic Acid from Waste Residues of Yan Shan Polyester Plant by Sublimating[J]. Journal of Beijing Institute of Petro-Chemical Technology, 1995, 0(1) |
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| Authors: | Liu Fengying Wang Ling Liu Tongyin |
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| Affiliation: | Chemical Engneering Department |
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| Abstract: | Benzoic Acid is recovered from waste residues of Yan Shan Polyester Plant by sublimating. Benzoic Acid contained is near 40% in waste residues. Recovery ratio of the method is greater than 99.0%. The method is simple, economic and accurate. Qantitative analysis is proposed by Ultraviolet Spectrophotometry for Benzoic Acid sublimated. The purity is greater than 98- 3%. |
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| Keywords: | Sublimating Ultraviolet Spectrophotometry Infrared Spectrophotometry |
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