As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages

Related MCQs

• In continuous distillation, the internal reflux ratio (Ri) and the external reflux ratio (Re) are related as
• For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams
• Pick out the correct relationship. (Where, Ri = internal reflux ratio Ro = external reflux ratio.)
• If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm.
• The reflux to a distillation column is 100 moles/hr, when the overhead product rate is 50 moles/hr. The reflux ratio is
• What is the reflux ratio at total reflux?
• The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will
• As the reflux ratio in a distillation column is increased from the minimum, the
• Compound A is extracted from a solution of A + B into a pure solvent S. A Co-current unit is used for the liquid-liquid extraction. The inlet rate of the solution containing A is 200 moles of B/hr.m2 and the solvent flow, rate is 400 moles of S/m2 . hr. The equilibrium data is represented by Y = 3X2 , where Y is in moles of a A/moles of B and X is in moles A/moles of S. The maximum percentage extraction achieved in the unit is
• With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system).