2957.     ---------------.  [RUHRCHEMIE, A.-G.]  [Recycle Benzine.]  FIAT Reel K-28, Aug. 13, 1941, frames 6,081-6,098; PB 70,185; TOM Reel 295.

        Examination was made of the suitability of recycle benzine (benzine obtained by recirculating residual gas mixed with fresh synthesis gas, obtained by synthesis over Co and Fe catalysts) for producing lubricating oil by polymerization.  Recycling does not affect the polymerization properties or the value of the product.  The lubricating oil prepared from benzine synthesized over the Fe catalyst possesses a more favorable viscosity pole height than that obtained with the Co catalyst.  15 tables, 4 diagrams.