I have a problem with time consumed in purification through distillation. My distillation column consists of 27 feet 12" column with paul rings as packing components.
I have a reflux at 17 feet in column, that comes from the two condensers of 17 meter square and 10 meter square. I do distillation by two stage water ring vacuum pump with booster attached. I get the vacuum of 735mm/Hg.
What should be the reflux temperature that goes back in column? Or in reverse, what should be the temperature difference that goes back in column and at the bottom?