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Mathematical simulation of the performance of solid liquid extractors—II: Belt type extractors

✍ Scribed by J.A.M. Spaninks; S. Bruin

Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
709 KB
Volume
34
Category
Article
ISSN
0009-2509

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✦ Synopsis

Smce the local mode of phase contact m sohd lrqurd extractors often deviates from the overall countercurrent, It IS of Interest to evaluate the effect of the way m which local phase contact LS estabhshed on the performance of the extractlon In a previous paper we analysed the ddfuslon battery[l], the present paper pertams to belt-type extractors In a belt-type extractor contact between the phases wlthm each sectlon 1s m cross-current The stmulatlon of this extractor IS based on the analogy between cross flow contact and an mstattonary column process The ddferentml equations descnbmg mass transfer m this extractor are solved by numerlcal methods The exit concentrations m steady state are calculated to obtam the extractlon efficiency Results of the calculations are presented as a correlation between the number of plug flow and true transfer umts These results show, that devlatlons from pure countercurrent are small, when 6 or more sectrons are used under normal operatmg condltlons

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