2972.     ---------------.  [RUHRCHEMIE, A.-G.]  [Paraffin Synthesis With Iron Catalyst.]  FIAT Reel L-5, March 3, 1941, frames 136-143; PB 70,159; TOM Reel 299.

        Summary of research development work performed in connection with the paraffin synthesis with Fe catalyst based on the general experience of all research laboratories.  The following catalyst is recommended:  100 Fe:5 Cu:10CaO:150 kieselguhr precipitated with KOH.  the method for preparing the catalyst is given.  The synthesis is performed at 15-20 atm. pressure and a temperature of 225°-250°, with circulation of water gas, a constant ratio of CO:H₂, and with operation in 2 or more steps.  With this catalyst a 67% conversion is possible with yields of 129 gm. per m.³ of synthesis gas and with 60-70% of the liquid product as pure-white paraffin.