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Simulation of Vacuum Rotating Dryer to Dry Caffeine Colloid
Abstract:
It is time-consuming to dry the caffeine colloid got from caffeine methylation liquid after evaporating crystallization and cooling crystallization. To solve this problem, the laboratory equipment is designed to simulate vacuum rotating dryer to dry the caffeine colloid. Through the single-factor experiment and orthogonal experiment, the suitable dry conditions are determined as follows: the heating temperature is 110 °C; the vacuum degree is 0.09 MPa; the stirring speed is 250 rpm. The drying time under the optimal process conditions is reduced to 1.01hours.
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1159-1164
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August 2012
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© 2012 Trans Tech Publications Ltd. All Rights Reserved
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