3107.     SCHREIBER, -----.  [Dehydrogenation of Long-Chain Paraffin Hydrocarbons.]  FIAT Reel K-28, frames 6426-6434, Feb. 12, 1944; PB 70,185; TOM Reel 295.

        Th, Zn, and Cu chromites are suitable catalysts for the dehydrogenation of long-chain hydrocarbons.  Increasing the olefin yields over 23% is not recommended, as above that a considerable aromatization begins.  The olefins are well-suited for lubricating-oil synthesis, but generation of aromatics in the dehydrogenation process makes the method unfavorable from an economic point of view.