• 作者： Ju, Shin-Jon; Chiu, Tai-Ming; Hoh, Ying-Chu
• 中文摘要： 本文以偽動態法模擬溶劑萃取程序中混澄器在逆流式,交叉式及萃反交替式流動排列下之操作結果,並加以比較以探討有機相對水相和水相對反萃劑相流量比及級數等程序參數對三種流動排列之操作結果的影響。模擬結果指出在所探討的程序及條件中,以交叉式的效率最高, 而萃反交替式則依程序及條件而定,可能比逆流式佳, 也可能比較差。在高操作濃縮比下, 萃反交替式之有機相或反萃劑相會出現提早飽和之現象, 此現象使得其效率不佳, 並抑制提高有機相對水相流量比之有利影響。
• 英文摘要： Comparison of the performances of mixer-settler contactors operated with countercurrent (CTC), crosscurrent(CSC),and alternating extraction and stripping (AES) flow arrangements (FA)in solvent extraction processes were studied via simulation by means of a pseudo dynamic method. The effects of the organic-to-aqueous (O/A) and the aqueous feed-to-stripping agent (A/A') flow ratios and the stage numbers on the performances of those three arrangements were investigated. The calculated results indicate that CSCFA gives the best performance for all process conditions examined. AESFA, however, may be either better or worse than CTCFA, depending on the process characterisctics and operating conditions. A presaturation of the solute in either the organic stream or the stripping agent stream was observed when the AESFA was operated at a high A/A' ratio. This anomaly impairs the efficiency and inhibits the benificial influence of increasing O/A ratio of a process with the AESFA.
• 中文關鍵字： 溶劑萃取程序; 級式萃取器; 排列; 模擬; 混澄器; 偽動態法; 銅; 鈾
• 英文關鍵字： Solvent Extraction Processes; Stagewise Contactor; Arrangements; Simulation; Mixer-Settler; Pseudo Dynamic Method; Copper; Uranium