PATENTS

2927.----- [RUHRCHEMIE A. G.]  Hydrogenation of Carbon Monoxide British Patent 504,910, Apr. 27, 1939.  Chem. Abs., vol. 33, 1939, p. 7814.

            Solid paraffin hydrocarbons are produced from CO and H₂ with a Co catalyst at or near atmospheric pressure and at 160°-175°, the reaction gases being passed at not more than 20 1. per hr. per 1. of catalyst, which results in a yield of 50% or more of solid paraffins.  The catalyst preferably contains no catalytic metal other than Co and is activated by ThO₂ or MgO.  The products are especially suitable as ingredients of polishing wax.