同向环流萃取装置的存留分数和液泛研究Research on hold-up and flooding of a parallel-flow extraction column
王小颖,王成习,杨秋月
摘要(Abstract):
在直径0.1 m,孔径3 mm的一种同向环流萃取装置中,针对煤油-水和30%磷酸三丁酯(TBP)/煤油-水两种体系,采用体积置换法和观察法分别对分散相存留分数和液泛速度进行了研究。实验结果表明了分散相存留分数随两相表观速度的增大而增大,且分散相速度的影响大于连续相速度。得出了在这两种体系下,连续相的流量范围分别为0~29和0~34 L×h~(-1),分散相的流量范围分别为10~166和16~125 L×h~(-1)。同时,采用无因次数群法拟合出存留分数和液泛速度的经验关联式。两个经验关联式都能在实验范围内很好地对存留分数和液泛速度进行预测,为工业过程放大和工程设计提供了重要的计算依据。
关键词(KeyWords): 同向环流萃取装置;分散相存留分数;液泛速度;经验关联式
基金项目(Foundation):
作者(Author): 王小颖,王成习,杨秋月
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