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Which of the following is used as a solvent in deasphalting of petroleum products?
The most suitable solvent for deasphalting vacuum residue is
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
Selectivity of the solvent used in solvent extraction should be
'Solvent naphtha' used mostly as a solvent in paints and perfumery is produced by the __________ of virgin naphtha into small boiling range cuts.
In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres.
The vapour pressure of a solution (made by dissolving a solute in a solvent) is __________ that of the pure solvent.
If the partial pressure of the solvent in the vapor phase is equal to the vapor pressure of the solvent at that temperature, then the system is said to be at its
Addition of a non-volatile solute to a solvent produces a __________ in its solvent.
The leaching solvent used in Baeyer's process for the purification of bauxite is