PATENTS

      1540.  ------.  [I. G. FARBENINDUSTRIE, A. G.]  [Reduction of Carbon Monoxide With Hydrogen.]  German Patent Appl. I 63,572.  OZ 11,312. filed Jan 21, 1939: APC TC 1,136.

            For the synthesis of predominantly solid paraffins from CO and H₂, the catalyst id made by precipitating a compound of a metal of the Fe group on Al₂O₃ and immediately reducing the precipitate.