Abstract: A process is provided for the production of aliphatic acetate esters and gaseous alkanes comprising contacting acetic acid and synthesis gas in the vapor phase at elevated temperature and pressure in the presence of a catalyst containing the mixed oxides of ruthenium and nickel, and optionally an alkali metal oxide and the oxides of cobalt, cadmium, zinc or mixtures thereof. Other carboxylic acids may be substituted for acetic acid as desired.