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Literature Abstracts

 1477.    HOWES, D. A., ALLEN, J. G., AND SCHINDLER, H.  I. G. Farbenindustrie A.-G.  Works at Leuna. XIIA.  Synthetic Lubricating-Oil Manufacture at Stettin-Pölitz.  CIOS Rept. XXXII-107, 1945, pp. 81-83 PB 6,650.  TOM Reel 197.  Bureau of Mines Inf. Circ. 7370, 1946, pp. 81-83.

       Under closely controlled conditions, a mixture of Fischer-Tropsch wax (maximum melting point 176° F.), and a special wax from brown coal tar distillation (made by a combination cracking-hydrogenation process) is cracked under closely controlled conditions to give 95-97% olefins.  These are polymerized at atmospheric pressure in the presence of AlCl3 catalyst.  Ultimate yields are % by weight:  Gas 27-30, lubricating oil 49-52, diesel oil 6-7, steam cylinder oil 8-11.  2 grades of lubricating oil have been made:  Engler viscosity at 100° 3.0 and 5.5-5.6.  Production capacity of the plant was 1,000-1,200 ton per mo.; actual production was about one-half this amount.