PATENTS

      3021.  ------.  [RUHRCHEMIE A. G.]  [Process for Dehydrating Alcohols.]  German Patent Appl. --, R 552, filed Feb. 12, 1941.  FIAT Reel K-20, frames 215-218; PB 70,211.

            In splitting off the H₂O from alcohols by means of ZnCl₂ or other similarly acting Zn halogenide, the latter is first dissolved in alcohols or hydrocarbons before being applied.  Example: 2,500 cc. of a hydrocarbon fraction b. 80°-360° and obtained by the catalytic hydrogenation of CO are mixed with a solution of 25 gm. of H₂O-free ZnCl₂ in 100 cc. of 80% amyl alcohol and heated for 6 hr. at 300°.  The olefins and H₂O are continuously removed by distillation.