205.    BERL, E., AND BEMMANN, R.  [Catalytic Experiments With High-Pressure Circulation Apparatus.]  Ztschr. Angew. Chem., vol. 44, 1931, pp. 34-39; Chem. Abs., vol. 25, 1931, p. 1432.

                 Water gas was subjected to catalytic high-pressure synthesis in a circulation apparatus in which the liquid-reaction product is separated from the gas mixture.  A sketch of the apparatus and details of the design of the high-pressure bomb, separating vessel, fittings, and device for measuring gas velocity are given.  The results, in general, confirmed data reported in the literature.  Alkali-free ZnO catalyst forms MeOH chiefly.  In contrast, higher alcohols, acids, and aldehydes are formed by using an alkali-containing ZnO.  S has an injurious effect on the catalyst.  The preparation and reduction of the catalyst are very important.  The gas velocity over the catalyst has considerable influence on the reaction.  With increasing velocity more unstable intermediate compounds are obtained, while at low velocities the stable end products predominate.