| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize an agitation mechanism in a crystallization operation to the absolute minimum or dispense with the agitation mechanism. SOLUTION: A solution in which the gas from an absorption condenser 10 is absorbed and mixed is supplied to the inside of a draft tube 31 of a crystallization tank 30 so that the dissolved gas is vaporized and raised and a convection current is produced in the crystallization tank 30 to obtain an agitating effect of the crystal slurry in the crystallization tank 30. COPYRIGHT: (C)2009,JPO&INPIT
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