Spaced jacket hot water circulation, the temperature between the temperature / jacket 40 ~ 50 ℃, the solvent was concentrated under reduced pressure, concentrated to no liquid outflow, end concentrated
Open jacket hot water cycle, temperature control temperature / jacket between 40 to 50 degrees C, decompression concentrate solvent, concentrate to no obvious liquid outflow, concentration end
Open the jacketed hot water circulation, control the temperature between 40 ~ 50 ℃ / jacketed, concentrate the solvent under reduced pressure until there is no obvious liquid outflow, and the concentration is over