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Patent Abstracts

      682.  ------.  [FISCHER, F., AND PICHLER, H.]   (Studien- und Verwertungs-G. m. b. H.).  [Process for the Production Paraffin.]  German Patent Appl., St. 56,469, filed July 30, 1937 (Cl. IV d-12 o).  FIAT Reel B-196, frames 361-364; PB 83,253; TOM Reel 100.

            Process in general refers to the production of solid paraffin from CO and H2 in presence of a catalyst containing Co at < 250º and 2-50 atm.  The preferred operating conditions are as follows:  Synthesis gas CO: H2=1:2; catalyst produced by precipitation and consisting of Co-Th-kieselguhr; pressure 5-20 atm. with the gases remaining in the contact chamber for a period proportional to the increase in pressure: for example, at 10 atm., it would remain 10 times as long as at 1 atm.; temperatures 180º-200º.  The best yield, 150-160 gm. per m.3 of gas, is obtained under the above conditions.