Process for production of allyl acetate

1. A process for producing allyl acetate, comprising:

reacting acetic acid, oxygen, and propylene in the presence of a catalyst in a reactor to produce allyl acetate and water;

separating the unreacted acetic acid by a distillation column;

recovering an acetic acid-containing liquid which contains acetic acid and returning the acetic acid-containing liquid to the reactor via an acetic acid-water evaporator; and

heating a process liquid which contains the acetic acid-containing liquid to a temperature of 80 to 250° C. by a heater to polymerize unsaturated compounds,

wherein the process liquid is the bottom liquid of the acetic acid-water evaporator.

2. The process for producing allyl acetate according to claim 1 , wherein an evaporator is used as the heater.

3. The process for producing allyl acetate according to claim 1 , wherein the process liquid after the heating is returned to the distillation column.

4. The process for producing allyl acetate according to claim 1 , further comprising:

hydrolyzing, before the separating, the allyl acetate; and

supplying an acetic acid-containing liquid containing the acetic acid formed by the hydrolysis to the distillation column for the separating.

5. The process for production of allyl acetate according to claim 4 , wherein the distillation column separates acetic acid formed by the hydrolysis.

6. The process for production of allyl acetate according to claim 1 , wherein a heating temperature in the heater is from 100° C. to 150° C.

7. The process for production of allyl acetate according to claim 1 , wherein a residence time in the heater is 5.0 minutes or more.