Abstract: A method for producing a Guerbet alcohol, including reacting a raw material alcohol having 8 or more and 22 or less carbon atoms, in the presence of a catalyst (A) containing a first component, a second component, and a third component below: first component: copper, second component: one kind selected from the group consisting of cobalt, nickel, molybdenum, and rhenium, and third component: at least one kind selected from the group consisting of elements that are elements belonging to Groups 3 to 10 and 12 of the fourth period of the periodic table and elements belonging to Groups 3 to 7, 11, and 12 of the fifth and sixth periods of the periodic table, and are different from the element selected as the second component.

Abstract: To provide a method for producing a Guerbet alcohol without necessity of the use of a solvent, capable of enhancing the conversion and the yield. A method for producing a Guerbet alcohol, including the following steps 1 to 3 in this order: step 1: preparing a liquid composition containing an aliphatic alcohol and a base; step 2: holding the liquid composition at 100° C. or more and 180° C. or less to thereby adjust a water amount in the liquid composition to less than 0.28% by mass; and step 3: setting the liquid composition to be more than 180° C.

Abstract: To provide a method for producing a Guerbet alcohol without necessity of the use of a solvent, capable of enhancing the conversion and the yield. A method for producing a Guerbet alcohol, including the following steps 1 to 3 in this order: step 1: preparing a liquid composition containing an aliphatic alcohol and a base; step 2: holding the liquid composition at 100° C. or more and 180° C. or less to thereby adjust a water amount in the liquid composition to less than 0.28% by mass; and step 3: setting the liquid composition to be more than 180° C.