PATENTS

3189.----- [RUHRCHEMIE, A. G.]   [Separating Mixtures of Esters and Paraffins.]  German Patent Appl. R 118,283, no date (Cl. IV d-12 o).  Auszüge deut.  Patent-Anmeldungen, vol. 6, p. 319.

Mixtures of sulfuric acid esters of high-molecular hydrocarbons and paraffin hydrocarbons are first neutralized with alkali and then continuously extracted with low-boiling hydrocarbons.  Addition to German Patent Appl. R 116,698 (abs. 3096).