Hoffmann-La Roche uses TURBA-FILM* EVAPORATOR...
for Heatsensitive substances
. . . and
states, "We have been using several
Rodney Hunt Turba-Film evaporators for Hoffmann-La Roche, Nutley, N.J., plant uses Turba-Film Evaporator (left, above crystallization chambers) in concentration of dissolved heat-sensitive products
the concentration of solutions containing heat-sensitive pharmaceutical products. Due to special design, the Turba-Film evaporators show excellent performance and are superior to conventional evaporators. Evaporation takes place rapidly with only brief contact of the heat-sensitive material with the heating area.
Exposure to heat also is more uniform than in other evaporator designs, due to forced circulation in the form of an even film of liquid. Decomposition through overheating is avoided and the quality of the product, therefore, is excellent. Entrainment of product solution by the vapors is easily eliminated in the top separating section of the Turba-Film evaporators. Heat transfer efficiency is excellent." When dry powders are required, Rodney H u n t Spray Dryers complete the process following Turba-Film Evaporators and produce fine powders or minute non-diisting globules.
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