Process for producing 1-(4-isobutylphenyl)ethanol by hydrogenation of 1-(4-isobutyl-phenyl)ethanone in the presence of a catalyst composition comprising copper

A process for producing 1-(4-isobutylphenyl) ethanol comprising:

• S3) reacting 1-(4-isobutylphenyl)ethenone with hydrogen in the presence of a catalyst composition comprising copper and one or more metal other than copper,
• wherein the catalyst composition comprises
• c1) the copper in a total amount in a range of from 65 mass-% to 92.5 mass-%, relative to the total mass of metals present in the catalyst composition;
• c2) a carrier component comprising one or more substance selected from the group consisting of silicon and silicon compounds, wherein a total amount of silicon in the catalyst composition, relative to the total mass of copper present in the catalyst composition, is in a range of from 3.5 mass-% to 15.0 mass-%;
• and
• c3) manganese in a total amount in a range of from 0.75 mass-% to 3.15 mass-%, relative to the total mass of metals present in the catalyst composition;
• and
• one or more metal selected from the group consisting of sodium and calcium, wherein a total amount of the one or more metal selected from the group consisting of sodium and calcium in the catalyst composition, relative to the total mass of metals present in the catalyst composition, is in a range of from 4.5 mass-% to 15.0 mass-%;
• and
• wherein the catalyst composition has a molar ratio of copper:aluminum of ≥10.