2143. ------. [MARTIN, F., GOTTSCHALL, W., AND VELDE, H.] [Refining of
Synthetic Gasoline.] German Patent Appl. —, filed June 20, 1939; APC
280,055.
Spent fuller’s earth, silica gel, or alumina, used in the improvement of
octane number of synthetic gasoline, is extracted with naphtha, benzene, or CCl4
and employed at lower temperatures to decolorize gasolines.