PATENTS

3152.----- [RUHRCHEMIE, A. G.]  [Production of Lubricants.]  German Patent Appl. R 94,081, PA 568,242, filed Aug. 24, 1935 (CL. IV d-12 o).  FIAT /reek B-196, frames 902-908; PB 83,253.

Liquid product produced by the CO-H₂ reaction at 180° and normal pressure over a Co catalyst is separated and the fraction b. > 150° is cracked under 8 atm. pressure and at 493°.  A fraction distilling up to 200° with a specific gravity at 20° of 0.702 is reacted for 48 hr. at --20° with 5% AlCl₃.  The reaction product is H₂O washed free of catalyst, dried, treated with bleaching earth, and vacuum distilled.  There are obtained per 100 parts of oil, which after separation refrigeration oil, gives 43 parts of a highly valuable lubricating oil (pole height 1.75-1.9, absolute viscosity 12-22 E at 50° and flow point of--32° to--20°).