Level Solvent crystallization Solvent crystallization Solvent crystallization Solvent crystallization Secondary crystallization Molecular distillation
X1 (°C) X2 X3 (w/v) X4 (h) X1 (°C) X1 (°C)
1 0 methanol 1: 9 4 -40 95
2 -20 ethanol 1: 12 8 100
3 -40 acetone 1: 15 12 105
4 Hexane 1: 18 16 110
5 isopropanol