METHOD OF TREATING NEUTRAL AGENTS Russian patent published in 1997 - IPC

FIELD: paper and pulp industry and wood chemical industries. SUBSTANCE: during treatment low-grade sulfate soap by traditional process and in order to chall oil therefrom neutral agents containing biologically active compounds such as betuline, sterines, polyprenols and squalene. Prior art methods of treatment of neutral agents being recovered are directed to recover only one or two biologically active compounds from those listed above. The claimed method of treatment of neutral agents of sulfate soap makes it possible to obtain concentrates of all above- listed biologically active compounds, namely betuline, sterines, polyprenols, squalene. the claimed method is based on using differences in physical and chemical constants and chemical properties of individual groups and individual compounds incorporated in the composition of neutral agents and comprises operations such as crystallization of compounds, filtration and extraction thereof using selective immiscible solvents. EFFECT: more efficient treatment method. 1 tbl