Extractive distillation process for separating the azeotropic distillate mixture of allyl alcohol and allyl acetate

Claim 1

A PROCESS FOR SEPARATING THE AZEOTROPIC MIXTURE OBTAINED BY DISTILLING MONOMER OF A BETA,GAMMA-OLEFINIC ALCOHOL IN ADMIXTURE WITH MONOMER OF A SATURATED MONOCARBOXYLIC ACID ESTER OF THE BETA, GAMMA-OLEFINIC ALCOHOL, SAID MONOMERIC ALCOHOL CONTAINING NOT MORE THAN 6 CARBON ATOMS AND SAID MONOMERIC ESTER CONTAINING NOT MORE THAN 12 CARBON ATOMS, WHICH COMPRISES CONTACTING SAID MIXTURE WITH A NORMALLY LIQUID, NONPOLAR HYDROCARBON AT A TEMPERATURE ABOVE THE BOILING TEMPERATURE OF SAID MONOMERIC ALCOHOL, BUT BELOW THE BOILING TEMPERATURE OF THE HYDROCARBON WHEREBY SAID MONOMERIC ESTER, SUBSTANTIALLY FREE OF SAID MONOMERIC ALCOHOL, IS ABSORBED IN THE HYDROCARBON AND VAPORS COMPRISING MONOMER OF SAID ALCOHOL ARE EVOLVED, SAID HYDROCARBON HAVING A NORMAL BOILING POINT AT LEAST 20*C. ABOVE THE NORMAL BOILING POINT OF SAID MONOMERIC ESTER; SEPARATING SAID VAPORS AND THE ESTER-CONTAINING HYDROCARBON; CONDENSING SAID VAPORS; DISTILLING THE ESTER-CONTAINING HYDROCARBON SO AS TO OBTAIN AS RESIDUE SUBSTANTIALLY ESTER-FREE HYDROCARBON; RETURNING THE ESTER-FREE HYDROCARBON FOR CONTACT AGAIN WITH ESTER-ALCOHOL AZEOTROPE; AND COLLECTING AS DISTILLATE MONOMERIC ESTER SUBSTANTIALLY FREE OF SAID MONOMERIC ALCOHOL.