Working-up of multi-component oleochemical mixtures (e.g. for cosmetics use) uses combination of falling film and a thin film evaporator to reduce energy requirements and product losses

摘要

Working-up of a multi-component oleochemical mixture comprises (i) separating the mixture into a first distillate and a first sump product using a falling film evaporator followed by a rectification column and then (ii) separating the sump product into a second distillate and a second sump product using a thin film evaporator.