3300.     ---------------.  [STRADA, M.]  [Influence of the Catalyst Used on the Purity of the Methyl Alcohol Produced Synthetically From Water Gas.]  Giorn. chim. ind. applicata, vol. 15, 1933, pp. 168-176; Chem. Zentralb., 1933, II, p. 278; Chem. Abs., vol. 27, 1933, p. 4632.

                    Systematic study of the action of various catalysts, which have been suggested or patented for the preparation of MeOH, including ZnO obtained by various chemical means, ZnO and Cr₂O₃ in various proportions.  ZnO-Al₂O₃, ZnO-MgO, ZnO-MnO, ZnO-Cr₂O₃-Fe₂O₃, and smithsonite from various sources.  The smithsonites give the best results, the MeOH being more nearly pure; higher acids, aldehydes, and ketones are present in minute amounts, no higher alcohols are present, and the amount of hydrocarbon formed is low.  Smithsonites also retain their activity much better than the artificially prepared catalysts examined.