Question

Multi-solvent recrystallization to extract solute from glycerol?

Answer 1

As an inverse to recrystallisation; you could add varying quantities of water to the same mass of impure solid and experiment with varying temperatures. The goal here is not to dissolve everything, but to dissolve up more A and leave B behind. i. e. A warm reslurry. When you get your best result, filter B off warm this will seprate glycerol