Related Questions

Selectivity of the solvent used in solvent extraction should be
A 1
B > 1
C 0
After the increase of price of oil by 40%, a family decided to reduce its oil consumption so that the expenditure for oil goes up by 26% only. If the total consumption of oil before the price rise was 10 kg per month, then what is the current consumption of oil per month (in kg)?
A 8
B 8.50
C 9
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
Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl iso-butyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent has the advantages of the
A Elimination of solvent drying facility
B Higher nitration temperature
C Lower solvent dilution ratio
D All of the above
Solvent used in duo-sol extraction for lube oil upgradation is a mixture of
A Propane & phenol-cresol mixture
B Methyl ethyl ketone & glycol
C Phenol & furfural
D Propane & liquid sulphur dioxide
Oil produced by solvent extraction
A Has low free fatty acid content
B Is odourless
C Both A & B
D Neither A nor B
The solvent used in liquid-liquid extraction should have __________ less than one.
A Selectivity
B Distribution co-efficient
C Both A & B
D Neither A nor B
The solvent used in liquid extraction should not have high latent heat of vaporisation, because
A The pressure drop and hence the pumping cost will be very high
B It cannot be recovered by distillation
C Its recovery cost by distillation may be prohibitatively high
D It will decompose while recovering by distillation
Furfural solvent extraction is used for upgrading (by dissolving aromatics)
A Naphtha
B Lubricating oils
C Wax
D Cracking feedstock
The commonly used solvent in supercritical extraction is
A Methyl ethyl ketone
B Water
C Carbon tetrachloride
D Carbon dioxide

Next steps