Rolled Film Evaporators

The Rolled Film Evaporator is used in conjunction with an external condenser. The Rolled Film Evaporator serves as an excellent degasser, or for stripping slightly volatile compounds including water, alcohols, aromatic and aliphatic solvents, esters and other similar chemical compounds. Rolled Film Evaporators are often employed upstream of higher vacuum short path evaporators to remove volatile compounds and facilitate higher feed rates in the short path equipment.

The normal operating conditions of Rolled Film Evaporators are similar to other vacuum tight Wiped Film Evaporators, and distillation may be conducted at atmospheric equivalent boiling points as high as 500°C, with vacuum levels as low as 1.0 - 5.0 mbar, provided the external condenser and the vacuum set are designed complimentary to the volatility of the material.