PATENT

3766.  UHDE, F., AND PFIRRMANN, T.W.  Heating Oil and Motor Fuel.]  French Patent 819,660, Oct. 23, 1937.  Chem. Abs., vol. 32, p. 2325.

Heating oil and diesel motor oil are obtained by dissolving primary bitumen and coal extracts in oils poor in H, adding an oil causing precipitation (gasoline, benzene, light oils obtained by hydrogenating coal extracts or primary bitumen, oils rich in H obtained from paraffin, such as those resulting from the Fischer-Tropsch synthesis), and removing the precipitating oil by distillation, or otherwise after removal of the precipitates obtained.