281,637. Oel-und Fett-Chemie Ges., (Assignees of Schultze & Co., A.). Dec. 4, 1926, [Convention date]. Fatty acids, purifying.-In the separation of " tall-oil " into industrial fatty acids and resinic acids by distillation in vacuo with or without steam, the absolute pressure is no higher than 8 m.m. 4 m.m. or less is suitable. Preferably one or more fractionating columns are used, and distillation is stopped when resinic acids begin to pass over.
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