2845.     ---------------.  [ROELEN, O.]  [Manufacture of Magnesium-Containing Catalysts for the Gasoline Synthesis.]  FIAT Reel K-25, Nov. 19, 1937, frames 3,827-3,828; PB 70,216; TOM Reel 292.

        Direction for wholesale manufacture of Mg-containing catalysts, including a method for the manufacture of Co-Mg-Th-kieselguhr catalysts.