| 连续循环亲和提取过程的分离纯化特性 |
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| 引用本文： | 孙彦,董晓燕,甘一如.连续循环亲和提取过程的分离纯化特性[J].天津大学学报(英文版),1995(1). |
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| 作者姓名： | 孙彦 董晓燕 甘一如 |
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| 摘 要： | 将前人提出的连续循环亲和提取（ＣＡＲＥ）过程扩展到利用超滤膜的系统，即考虑超滤膜对料液中各组分的截留作用，建立了该过程的数学模型，对该过程的分离纯化性能──浓缩因子（ＣＦ），纯化因子（ＰＦ）和回收率（ＲＥＣ）──进行理论分析。结果表明：随膜截留率的增大，ＣＦ和ＲＥＣ增大，而ＰＦ降低；增大洗脱液和循环液的流速虽可提高回收率，但却使纯化因子降低，表明存在最佳的操作条件使该过程的分离纯化性能最好。
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| 关 键 词： | 亲和循环提取，连续过程，数学模型，过程特性，膜截留 |
PERFORMANCE OF THE CONTINUOUS AFFINITY-RECYCLE EXTRACTION PROCESS |
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| Sun Yan, Dong Xiaoyan, Gan Yiru.PERFORMANCE OF THE CONTINUOUS AFFINITY-RECYCLE EXTRACTION PROCESS[J].Transactions of Tianjin University,1995(1). |
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| Authors: | Sun Yan Dong Xiaoyan Gan Yiru |
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| Institution: | Dept. of Chemical Eng. |
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| Abstract: | The continuous affinity- recycle extraction (CARE) process is extended ic a system with ultrafiltration membranes. The mathematical model of the process is established by taking into account membrane rejections to the components in a crude mixture. The process performance, defined as concentration factor (CF ), purification factor (PF ) and recovery yield (REC), is analyzed by computer simulations. The results show that CF and REC increase, but PF decreases with the membrane rejection. It is likely that optimum operating conditions exist to give the best process performance because the increases in eluant and affinity-recycle flow rate improve REC but decrease PF. |
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| Keywords: | affinity-recycle extraction continuous process mathematical model membrane rejection process performance |
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