Selection and Evaluation of a New Extractant for Caprolactam Extraction

龚行楚; 吕阳成; 李牧; 马雪峰; 倪前银; 骆广生

doi:10.1016/S1004-9541(09)60009-4

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Selection and Evaluation of a New Extractant for Caprolactam Extraction

Updated：2026-01-06

- Selection and Evaluation of a New Extractant for Caprolactam Extraction
- Chinese Journal of Chemical Engineering Vol. 16, Issue 6, Pages: 876-880(2008)
- Affiliations：
  
  The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University,Beijing,China,100084
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(09)60009-4
  CLC：
- Published：2008
- Accepted：
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GONG Xingchu, LÜ Yangcheng, LI Mu, MA Xuefeng, NI Qianyin, LUO Guangsheng. Selection and Evaluation of a New Extractant for Caprolactam Extraction[J]. , 2008, 16(6): 876-880.
DOI：

GONG Xingchu, LÜ Yangcheng, LI Mu, MA Xuefeng, NI Qianyin, LUO Guangsheng. Selection and Evaluation of a New Extractant for Caprolactam Extraction[J]. , 2008, 16(6): 876-880. DOI： 10.1016/S1004-9541(09)60009-4.

摘要

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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