540. ------. [DREYFUS, H.] Methanol. British Patent 262,494, June 13, 1925. Chem. Abs., vol. 21, 1927, p. 3626.

Patent Abstracts

Water gas or other suitable gas mixture containing CO and H₂ in equimolecular proportions is passed at high temperature and pressure over ZnO without addition of other MeOH-forming catalysts. A pressure of 50-150 atm. is preferred and a temperature or 200º-300º, but the pressure and temperature may rise as high as 200 atm. and 450º. A Cu-lined or Al apparatus is preferably used. If the gases are passed through the apparatus at too low a speed, hydrocarbons and higher alcohols predominate in the product.