1807.  ------. [KAUFMANN, H., AND WELZ, H.] (I. G. Farbenindustrie A. G.). [Motor Fuel From Multibranched Alcohols.] German Patent Appl. I 74,066, OZ 13,916, filed Jan. 13, 1943 (Cl. IV d-12 o). TOM Reel 15, bag 3,043, item 18, frames 2,419-2,422; TOM Reel 20, item 167, frames 2,682-2,685; Meyer Transl. PC-S-II, Fischer-Tropsch; vol. 2. chap. 101, 1948, p. 82.

Multibranched alcohols, obtained by the catalytic reduction of CO with H₂ under pressure, together with a crude gasoline obtained from the low-temperature distillation or carbonization of hard or brown coal, are passed in presence of H₂ or gases containing it over hydrogenating catalysts under hydrogenating conditions and raised pressure but with the avoidance of cracking. An antiknock motor fuel is obtained by operating under a moderate total pressure, 40-50 atm., and a low partial pressure, 0.5-3 atm., in the presence of catalysts consisting of the sulfides or oxides of metals of groups 6 or 8 in admixture with oxides of metals of groups 2-5. In an example, an almost theoretical yield of a gasoline is obtained with an octane number of 73, or 91 after addition of 0.12% of lead.