1578. IPATIEFF, V. N., AND DOLGOV, B. N. [Study of Catalysts for the Synthesis of Methanol.] Jour. Chem. Ind. (U.S.S.R.), vol. 8, 1931, pp. 825-829; Chem. Abs., vol. 26, 1932, p. 80.

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Literature Abstracts

Decomposition of MeOH over various catalysts was studied as a guide to the discovery of the catalyst most active for the MeOH synthesis. Zn-Cr catalysts are best, though Zn and ZnO also may be used. Asbestos forms a better support than pumice. For best results the Zn-Cr nitrates are precipitated from dilute solution by dilute alkaline carbonates, which produce a more active catalyst than the hydroxides on the asbestos at 60°-80°. The density of the catalyst on the support should be high. The catalyst is then reduced by H₂ or MeOH vapors. Zn catalysts are less easily poisoned by PH₃ than those of Cu. Nitrates of Ce, Th, and UO₂ serve as activators in small amounts, but in larger quantities they reduce the catalytic activity. On standing, the activity of all the catalysts decreases.

IPATIEFF, V. N., AND HUHN, W. [Pyrogenetic Contact Reactions of Organic Compounds. VI. Contact Isomerism.] See abs. 1571.

IPATIEFF, V. N., AND LEONTOWITSCH, W. [Pyrogenetic Contact Reactions of Organic Compounds. VII. Contact Metamerism.] See abs. 1572.