| 摘要 |
<p>An integral system (10) and method for the separation and purification in a single operation of a heat or oxygen sensitive liquid feed, such as a plant derived liquid feed mixture of fatty acids, tocopherol compounds and sterols, into a low boiling point purified fraction of Vitamin E tocopherol compounds and a high boiling point concentrate fraction of triglycerides, which system can be maintained in the presence of an inert gas to provide reduced degradation and increased purity of the Vitamin E fraction. The system (10) includes a prevaporator (14), a vapor-liquid separator (20), a packed bed distillation column (18), a rotary thin film evaporator (36) and an evaporator stripper.</p> |
