Patent ID: 8865475

Claim:
A method, comprising: heating a material solution comprising a reactant and a two-phase reaction solvent comprising a first phase comprising a nonpolar solvent and a second phase comprising a polar solvent to a reaction temperature in a reaction container; stirring the material solution, such that the first phase and the second phase of the two-phase reaction solvent dissolve each other to form a one-phase solution; maintaining the one-phase solution, with stirring, at the reaction temperature for a predetermined period of time, to obtain a one-phase product solution comprising a reaction product; drawing the one-phase product solution within the reaction container into an extraction apparatus and cooling the one-phase product solution outside the reaction container to a predetermined temperature below the reaction temperature without cooling the reaction container, to obtain a two-phase product solution comprising a solvent phase comprising the polar solvent and a product phase comprising the reaction product and the nonpolar solvent; and then, returning the two-phase product solution, without stirring, to the reaction container, wherein the two-phase product solution is maintained.