1534. ------. [I. G. FARBENINDUSTRIE, A. G.] [Recovery of High-Grade Motor Fuels.] German Patent Appl. I 74,591. OZ 14,084. filed Mar. 22. 1943 (Cl. 46 a). FIAT Reel 172. frame 372; PB 25,616.

PATENTS

1534. ------. [I. G. FARBENINDUSTRIE, A. G.] [Recovery of High-Grade Motor Fuels.] German Patent Appl. I 74,591. OZ 14,084. filed Mar. 22. 1943 (Cl. 46 a). FIAT Reel 172. frame 372; PB 25,616.

Propylene is converted together with CO and H₂ at raised pressure and temperature to aldehydes, which are reduced to alcohols and these to n- and I-butylene by splitting off H₂O. The latter are then converted to motor fuels by dimerization, alkylation with isoparaffins, and hydrogenation. The alcohols higher than n-butyl are subjected to a cracking hydrogenation with a MoS₂ catalyst at 400º-450º to produce an antiknock gasoline when mixed with that produced in the 1^st step.