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Liquid-Liquid Extraction

Liquid-Liquid Extraction. Group 5 Alex Guerrero Andrew Duffy Bernard Hsu Daniyal Qamar Jeff Tyska Ryan Kosak Tomi Damo. ChE 382 2/3/2011. Introduction. In this laboratory, Acetic Acid in Oil will be extracted by water. Oil = Raffinate Water = Extract Counter-Current Flow.

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Liquid-Liquid Extraction

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  1. Liquid-Liquid Extraction • Group 5 • Alex Guerrero • Andrew Duffy • Bernard Hsu • DaniyalQamar • Jeff Tyska • Ryan Kosak • TomiDamo ChE 382 2/3/2011

  2. Introduction • In this laboratory, Acetic Acid in Oil will be extracted by water. • Oil = Raffinate • Water = Extract • Counter-Current Flow

  3. Purpose • The purpose of this experiment is to operate the three-stage mixer/settler system to extract Acetic Acid from White Oil using water as a solvent, while we investigate the effect of the speed of mixing on the extraction efficiency. • The efficiencies calculated will be the Murphree Efficiencies.

  4. Theory • Liquid-Liquid Extraction works because of differences in the solubility of the solute in the extract and raffinate. • Polar and Non-Polar Compounds, “like mixes with like.” • Acetic Acid dissolves more readily in water than oil • Water and oil do not mix • Acetic Acid is removed from oil due to solubility with water.

  5. Theory • = composition of extract phase equilibrium with raffinate phase leaving the (S+1)th stage. • Ys = real composition of the extract phase leaving the (S)th stage • Y(s+1) = real composition of the extract phase leaving the (S+1)th stage

  6. Theory • = composition of the raffinate phase in equilibrium with extract phase leaving the (s+1)th phase. • Xs = real composition of the raffinate leaving the (S)th stage • x (s+1) = real composition of the raffinate leaving the (s+1)th stage

  7. Theory • = theoretical number of stages required • = actual number of stages used • %Removal = (x(in) – x(out))*100/(x(in)) • %Removal in nth stage = (x(n)-x(n+1))*100/(x(n))

  8. Apparatus

  9. Materials

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