| 溶剂萃取法回收稀醋酸 |
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| 引用本文： | 田恒水,霍文军,苏元复.溶剂萃取法回收稀醋酸[J].华东理工大学学报(自然科学版),1991(2). |
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| 作者姓名： | 田恒水 霍文军 苏元复 |
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| 作者单位： | 华东化工学院化学工程系
(田恒水)，华东化工学院化学工程研究所
(霍文军)，华东化工学院化学工程研究所(苏元复) |
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| 摘 要： | 研究了三烷基(C_(7～9))胺(N_(235))、磷酸三丁酯(TBP)及其混合溶剂在稀溶液中萃取醋酸及醋酸与硝酸、甲基丙烯酸的行为和性质,测定并关联了液液平衡数据。从醋酸水溶液和乙二醛氧化液中回收与除去醋酸用N_(235)-TBP混合溶剂较好,处理甲基丙烯酸的废水溶液用TBP较好。分离的最佳工艺条件为:溶剂配比,20%(v)N_(235)-80%(v)TBP;温度,298K;平衡时间约30s;相比为1;四级逆流萃取。溶剂用真空精馏法回收。研究了TBP萃取醋酸的机理,得到萃合比为1及萃合物结构式。
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| 关 键 词： | 醋酸 萃取 分离 乙二醛 甲基丙烯酸 溶剂萃取 |
Recovery of Acetic Acid from Diluent Aqueous Solution by Solvent Extraction |
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| Tian Hengshui,Huo Wenjun and Su Yuanfu.Recovery of Acetic Acid from Diluent Aqueous Solution by Solvent Extraction[J].Journal of East China University of Science and Technology,1991(2). |
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| Authors: | Tian Hengshui Huo Wenjun and Su Yuanfu |
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| Institution: | Chemical Engineering Research Centre |
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| Abstract: | Methods to recover acetic acid from diluent aqueous solution, glyoxal and waste water of producing methacrylic acid have been developed. A new process to extract HAc is to use a mixed solvent consisting of tertiary amine and tributyl phosphate. Various factors such as composition of the mixed solvents, concentrations of HAc, (HAc + HNO_3) and (HAc + MAA), contact time, and temperature were studied.The data of liquid-liquid equilibrium have been measured and related. A preliminary discussion of the extractive mechanism is also outlined. |
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| Keywords: | acetic acid glyoxal methacrylic acid recovery extraction separation treating waste water solvent extraction |
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