It is a further object of this invention to identify organic compounds which, in {HEAD ~ addition} to {TAIL ~ the above constraints}, are stable, can be separated from isopropanol by rectification with relatively few theoretical plates and can be recycled to the extractive distillation column and reused with little decomposition 
to
It is a further object of this invention to identify organic compounds which , in { HEAD ~ addition } to { TAIL ~ the above constraints } , are stable , can be separated from isopropanol by rectification with relatively few theoretical plates and can be recycled to the extractive distillation column and reused with little decomposition
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