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Return to Abstracts of Literature 1750-1999

Literature Abstracts

 1944.    ---------------.  [KÖLBEL, H.]  [Synthesis of Lubricating Oil Through Alkylation of Naphthalene.]  Erdöl u Kohle, vol. 1, 1948, pp. 308-318; Chem. Abs., vol. 43, 1949, p. 4454.

        Method is based on the condensation of chlorinated paraffin hydrocarbons obtained from the Fischer-Tropsch synthesis with naphthalene by means of the Friedel-Crafts reaction.  Kogasin d₂₀=0.77; boiling point, 280°-320°; Cl 20.9% was superior to a similar petroleum fraction as base stock.  Physical properties of various synthetic oils are given:  d₂₀ of synthetic motor oil is approximately 0.925, in contrast to petroleum oils, density has no significance as a criterion of quality for synthetic oils.  Gasoline- Diesel- and steam-engine tests showed a superiority of the synthetic oils over good quality natural oils.  Includes a plant diagram.

        See abs. 409, 1040, 1041, 1336, 1837.