2863.     ---------------.  [ROELEN, O.]  [Catalysts for the Hydrogenation of Carbon Monoxide.]  FIAT Reel K-29, 1943, frames 7,226-7,239; PB 70,218; TOM Reel 296.

        Catalytic hydrogenation of CO is reviewed.  It is established, above all, that the weakening of the catalyst under normal synthesis conditions during the first 6 months cannot be explained by coarsening changes in the structure.