2131. ------. [MÄRKISCHE SEIFEN-INDUSTRIE.] [Soap From Hydrocarbons.] German Patent 704,428, Feb. 27, 1941 (Cl. 23 e-1). Chem. Abs., vol. 36, 1942, p. 2174.

To separate the unsaponified portion from soap obtained from oxidation products of hydrocarbons, the whole is heated under pressure; then the unsaponified fraction is allowed to vaporize into an evacuated vessel kept at an elevated temperature. The soap is dropped onto a heated conveyor where the last traces of the unsaponified fraction vaporizes.