Gasketed-Plate Evaporators

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Plate evaporators may be used as a heating element in a forced circulation system in which boiling is deliberately suppressed. Bolling may also occur within the gasketed-plate evaporator with the mixture of liquid and vapor discharged into a cyclone or other type of separator. 

The volume of product held in the evaporator is very small in relation to the large available heat transfer surface. Gasket-plate evaporators are well adapted to evaporating heat sensitive, viscous, and foaming materials. They afford fast startup and shutdown. They are compact with low headroom required. They are easily cleaned and readily modified. 

Several different fluids can flow through different parts of the evaporator. A fluid may be removed for intermediate processing and returned for another heat transfer cycle. A fluid may also be subjected to a different heating and cooling media simultaneously or in series within the same evaporator. 

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P-373. To 100 g of the unsaturated prepolymer were added 30 g of styrene and 1.3 g benzoyl peroxide. The mixture was stirred and castings made between glass plates sealed with rubber gaskets (to prevent monomer evaporation) and cured overnight at 85°C. 

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