FIELD: physics; heating.
SUBSTANCE: in common method of moisture removal in vacuum including evacuation 0.1-10 Pa, raw materials heating, moisture removal and condensation and raw materials agitation, in case of film boiling temperature near to top cover of evaporator chamber is lowered to 16-22°C. After foam is removed, temperature is raised to initial value. Operation is repeated if required.
EFFECT: higher method efficiency due to suppression of film boiling.
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