684. ------. [FISCHER, F., AND PICHLER, H.] (Studien- und Verwertungs-G. m. b. H.) [Process for the Production of Solid, Liquid, and Easily Liquefied Aliphatic Hydrocarbons From Carbon Monoxide and Hydrogen.] German Patent Appl. St. 56,470, filed Jul

Patent Abstracts

684. ------. [FISCHER, F., AND PICHLER, H.] (Studien- und Verwertungs-G. m. b. H.) [Process for the Production of Solid, Liquid, and Easily Liquefied Aliphatic Hydrocarbons From Carbon Monoxide and Hydrogen.] German Patent Appl. St. 56,470, filed July 30, 1937 (Cl. IV d-12 o). TOM Reel 134, sec. Ib, item 6, 7 pp; TOM Reel 100.

A synthesis gas consisting of CO: H₂=3:2 is passed over an Fe catalyst at 2-50 atm. pressure and <320º. The catalyst consists of Fe and Cu in proportions of 4 to 1; it is made by dissolving Fe-II-Cl and Cu-II-Cl in H₂O, precipitated with Na₂CO3, washed until free from alkali, impregnated with 0.125% K₂CO₃, dried at 110º, granulated, and deposited on a carrier. Induction of the catalyst takes place at >200º and a pressure below that of the succeeding synthesis (or at 240º and atm. pressure) with synthesis gas in volume ratio of CO:H₂=1:2, and until the gas contraction attains a maximum of about 30% in about 3 days time. The following conversion may then be carried out at 15 atm. and 260º with a synthesis gas of composition CO:H₂=3:2 and at a rate of 400 l. of gas per kg. Fe per hr. Contraction amounts to 50% and the yield of hydrocarbons to 130-150 gm. per m.³of gas, of which 80-90 gm. is solid and liquid hydrocarbons and 50 gm. easily liquefiable benzine.