| 新型己内酰胺萃取剂的筛选和评价 |
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| 引用本文： | 龚行楚,吕阳成,李牧,马雪峰,倪前银,骆广生. 新型己内酰胺萃取剂的筛选和评价[J]. 中国化学工程学报, 2008, 16(6): 876-880. DOI: 10.1016/S1004-9541(09)60009-4 |
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| 作者姓名： | 龚行楚 吕阳成 李牧 马雪峰 倪前银 骆广生 |
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| 作者单位： | The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China （20490200, 20525622） and the National Basic Research Program of China （2007CB714302）. |
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| 摘 要： | Mixed solvent of 1-octanol and cyclohexane with 60% （by mass） 1-octanol content was selected as a new extractant for caprolactam extraction. Compared with benzene or toluene, the new extractant has larger extraction capacity and much lower toxicity. Although the extraction capacity of the new extractant is smaller than that of pure 1-octanol, 1-octanol solubility of the new extractant in aqueous phase is much smaller. Because of its physical properties of lower density, lower viscosity, and higher interfacial tension, the new extractant performed much better phase separation ability than pure 1-octanol. The new extractant showed certain selectivity when dealing with lactam oil. The mixed solvent of 1-octanol and cyclohexane with 60% （by mass） 1-octanol content is a promising extractant for caprolactam extraction.
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| 关 键 词： | caprolactam extraction octanol cyclohexane |
| 收稿时间： | 2007-12-28 |
| 修稿时间： | 2007-12-28 |
Selection and evaluation of a new extractant for caprolactam extraction |
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| GONG Xingchu,L,Uuml,Yangcheng,LI Mu,MA Xuefeng,NI Qianyin,LUO Guangsheng. Selection and evaluation of a new extractant for caprolactam extraction[J]. Chinese Journal of Chemical Engineering, 2008, 16(6): 876-880. DOI: 10.1016/S1004-9541(09)60009-4 |
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| Authors: | GONG Xingchu LÜ Yangcheng LI Mu MA Xuefeng NI Qianyin LUO Guangsheng |
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| Affiliation: | The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | Mixed solvent of 1-octanol and cyclohexane with 60% (by mass) 1-octanol content was selected as a new extractant for caprolactam extraction. Compared with benzene or toluene, the new extractant has larger extraction capacity and much lower toxicity. Although the extraction capacity of the new extractant is smaller than that of pure 1-octanol, 1-octanol solubility of the new extractant in aqueous phase is much smaller. Because of its physical properties of lower density, lower viscosity, and higher interfacial tension, the new extractant performed much better phase separation ability than pure 1-octanol. The new extractant showed certain selectivity when dealing with lactam oil. The mixed solvent of 1-octanol and cyclohexane with 60% (by mass) 1-octanol content is a promising extractant for caprolactam extraction. |
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| Keywords: | caprolactam extraction octanol cyclohexane |
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