| 酸团中微量正己烷的离心萃取分离研究 |
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| 引用本文： | 唐康,郝萌萌,甘仁武,徐艳,白志山. 酸团中微量正己烷的离心萃取分离研究[J]. 合成纤维工业, 2012, 35(3): 14-17 |
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| 作者姓名： | 唐康 郝萌萌 甘仁武 徐艳 白志山 |
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| 作者单位： | 华东理工大学承压系统安全科学教育部重点实验室,上海,200237 |
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| 基金项目： | 上海市科学技术委员会项目 |
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| 摘 要： | 采用离心萃取分离技术,回收己内酰胺水解反应产生的酸性溶液(酸团)中的正己烷;建立工业侧线实验装置,考察了离心萃取机的转速、进料口流量及正己烷含量对分离性能的影响。结果表明:离心萃取分离性能随进料口正己烷含量的增加而增强;进料口流量越大,分离性能越差;设备转速为1 500 r/min时,分离效果最佳;转速为1 500 r/min,进料口流量为0.6 m3/h时,平均分离效率可达40%,分离效果好。
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| 关 键 词： | 己内酰胺 正己烷 酸团 离心萃取 分离 |
Separation of trace n-hexane from acid aqueous solution by centrifugal extraction |
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| Tang Kang , Hao Mengmeng , Gan Renwu , Xu Yan , Bai Zhishan. Separation of trace n-hexane from acid aqueous solution by centrifugal extraction[J]. China Synthetic Fiber Industry, 2012, 35(3): 14-17 |
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| Authors: | Tang Kang Hao Mengmeng Gan Renwu Xu Yan Bai Zhishan |
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| Affiliation: | (The Key Laboratory of Safety Science of Pressurized System,East China University of Science and Technology,Shanghai 200237) |
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| Abstract: | Centrifugal extraction technique was used to recover trace n-hexane from acid aqueous solution generated by caprolactam hydrolysis reaction.An industrial side track tester was established.The effects of rotary speed,inlet flow rate and n-hexane content of centrifugal extractor on separation performance were investigated.The results showed that the separation performance of centrifugal extraction was improved with the increase of inlet n-hexane content,but was depressed with the increase of inlet flow rate;and the separation performance was optimized at the rotational speed of 1 500 r/min.The average separation efficiency reached 40% and the separation efficiency was fairly good as the rotational rate was 1 500 r/min and the flow rate was 0.6 m3/h. |
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| Keywords: | caprolactam n-hexane acid aqueous solution centrifugal extraction separation |
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