Resumo

SA, R.M.; GOIS, L.M.N.  e  CAVALCANTI, C.F.. Dispersed phase holdup in a liquid-liquid extraction column. Lat. Am. appl. res. [online]. 2010, vol.40, n.4, pp.373-376. ISSN 0327-0793.

Dispersed phase holdup was measured in a liquid-liquid extraction column for the butyl alcohol-water system. The column performance has been studied using two columns of the same diameter (0.092m) but different lengths (0.70m, three stages and 0.90m, four stages). The column was operated counter-currently with several continuous and dispersed flows rates. The dispersed phase holdup was measured by the drainage method. Based on holdup data, the results were analyzed with the aim of determining the influence of flows rates and the column number of stages on the behavior of the dispersed phase holdup. An empirical correlation is proposed for estimating the dispersed phase holdup.

Palavras-chave : Hold-Up; Extraction.

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