A. Mixer-settler extractor
B. Centrifugal extractor
C. Pulsed extractor
D. Packed extraction tower
Related Mcqs:
- 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_________________________?
A. 25%
B. 50%
C. 70%
D. 90% - With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system) ?
A. Increases
B. Decreases
C. Remain unaffected
D. Increases Linearly - In a liquid-liquid extraction, 10 kg of a solution containing 2 kg of solute C and 8 kg of solvent A is brought into contact with 10 kg of solvent B. Solvent A and B are completely immiscible in each other whereas solute C is soluble in both the solvents. The extraction process attains equilibrium. The equilibrium relationship between the two phases is Y* = 0.9X, where Y* is the kg of C/kg of B and X is kg of C/kg of A. Choose the correct answer?
A. The entire amount of C is transferred to solvent B
B. Less than 2 kg but more than 1 kg of C is transferred to solvent B
C. Less than 1 kg of C is transferred to B
D. No amount of C is transferred to B - Extraction of penicillin employs a ________________ extraction column?
A. Centrifugal
B. Packed
C. Plate
D. None of these - Solvent extraction is the terminology applied to the liquid-liquid extraction, which is preferred for the separation of the components of liquids, when____________________?
A. Extracting solvent is cheaply & abundantly available
B. One of the liquid components is heat sensitive
C. Viscosity of liquid components is very high
D. One of the liquid components has very high affinity towards the solvent - Which one of the following devices is not used for both the absorption as well as the liquidliquid extraction processes ?
A. Packed towers
B. Plate towers
C. Spray towers
D. Wetted wall columns - Which of the following equipments is not used in liquid-liquid extraction ?
A. Pachuka tank
B. Agitated vessels
C. Centrifugal extractors
D. Packed towers - In case of constant underflow extraction operation, the _______________________ at all solute concentration?
A. Solids are drained to the same extent
B. Ratio of the insoluble to solution is constant
C. Both A. & B.
D. Neither A. nor B. - A coalescer in a mixer-settler liquid-liquid extraction column______________________?
A. Comprises of thin bed of substances of extended surface having high porosity
B. Helps in increasing the bubble size entering the settler
C. Helps in increasing the settling rate of the bubbles
D. All ‘a’, ‘b’, & ‘c’ - Degree of freedom for leaching and solvent extraction process is_____________________?
A. 0
B. 1
C. 2
D. 3