3451.    ---------------.  [TROPSCH, H.]  [Manufacture of Butyl Alcohol, Acetone, and Methanol From Corn.]  Brennstoff-Chem., vol. 9, 1928, pp. 1-2; Chem. Abs., vol. 22, 1928, p. 2635.

        Description of the Commercial Solvents Co. process at Peoria, Ill.  The mixture of 60% CO₂ and 40% H₂ liberated during fermentation is washed with water under pressure to bring the proportion to 25% and 75%, respectively, and is then compressed to 300 atm., and passed over a catalyst comprising 97.75% Zn or Mg oxide with 3.25% Fe₂O₃.  From the mixture of 68% MeOH and 32% H₂O, pure MeOH is obtained by rectification.  Thirteen tons of MeOH are produced per day.