Method for producing isopropanol by acetone hydrogenation

The invention aims at solving the problems of isopropanol production by acetone hydrogenation and impurity removal, especially water removal from isopropanol, and provides a method for producing qualified isopropanol products by converting acetone into isopropanol through hydrogenation, entraining water in the isopropanol by using diisopropylamine as an entrainer, and removing heavy components. The method for producing isopropanol in the invention has a short production flow, is easy to master, and has high economic benefits. Isopropanol can be produced in an isopropylamine production device; diisopropylamine is used as an entrainer; no new substance is introduced; not only the cleanness of the device system is guaranteed, but also the increase of investment for separation equipment and storage tank equipment is not necessary; and the production cost is reduced.