Experimental investigation of the effects of surfactants on the mass transfer in liquid-liquid extraction equipment

Haghdoost, A ; Sharif University of Technology | 2007

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  1. Type of Document: Article
  2. Publisher: 2007
  3. Abstract:
  4. Mass transfer rates to the drops in liquid-liquid extraction equipment are often likely to be reduced by the presence of surface active contaminants. This reduction in mass transfer is said to be due to a reduction in terminal velocity, and to changes in pattern of internal circulation. A single-drop extraction apparatus was used to investigate the dependency of mass transfer coefficient on the amount of surfactant added in a system of n-butanol/succinic acid/water. Three types of surfactants, SDS, DTMAC and Triton X-100, were used to study their effects on the inhibition of mass transfer in liquid-liquid extraction. The effect of surfactants concentration on extraction percentage, overall mass transfer coefficient, and extra mass transfer resistance was investigated for these surfactants. Also variation of terminal velocity as a function of surfactant concentration and drop diameter were illustrated for both surfactants. Finally these surfactants were compared to each other. Copyright © 2007 by ASME
  5. Keywords:
  6. Concentration (process) ; Contamination ; Extraction ; Flow velocity ; Mass transfer ; Extraction percentage ; Liquid-liquid extraction ; Surface active contaminants ; Surfactant concentration ; Surface active agents
  7. Source: 2007 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007, San Diego, CA, 30 July 2007 through 2 August 2007 ; Volume 2 FORA, Issue PART A , 2007 , Pages 239-244 ; 0791842886 (ISBN); 9780791842881 (ISBN)
  8. URL: https://asmedigitalcollection.asme.org/FEDSM/proceedings-abstract/FEDSM2007/42894/239/326750