Process for the isolation of sterols and/or wax alcohols from tall oil products

The invention relates to a process for recovering sterols and/or wax alcohols from a crude tall oil based source material comprising sterols and/or wax alcohols in esterified form and fatty and/or rosin acids and optionally sterols and/or wax alcohols in free form, said method comprising the steps o...

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Bibliographische Detailangaben
1. Verfasser:	HAMUNEN, ANTTI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES CANDLES CHEMISTRY DETERGENTS ESSENTIAL OILS FATTY ACIDS THEREFROM METALLURGY ORGANIC CHEMISTRY PERFUMES PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS STEROIDS
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Beschreibung
Zusammenfassung:	The invention relates to a process for recovering sterols and/or wax alcohols from a crude tall oil based source material comprising sterols and/or wax alcohols in esterified form and fatty and/or rosin acids and optionally sterols and/or wax alcohols in free form, said method comprising the steps of: a) converting free acids in the source material to corresponding salts, b) removing water if present, c) transesterifying the esterified sterols and/or wax alcohols present in the dry material obtained in step a or step b to liberate sterols and/or wax alcohols, d) evaporative fractionating the transesterified material, and e) isolating sterols and/or wax alcohols from the obtained fraction(s) and/or the residue.