The effect of the cooling mode on the kinetic parameters of crystallization

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Abstract
The effect of different cooling regimes (natural, linear, and programmed cooling according to a theoretical curve) on the kinetic parameters of crystallization and on the mean product crystal size is demonstrated by an example of batch cooling crystallization of ammonium aluminium sulphate dodecahydrate. The kinetic exponent g/n determined on the basis of model experiments does not depend on the cooling regime, the system constant BN is highest for the programmed cooling. If this constant is to be a basis for the design of a cooling crystallization equipment, it is necessary to carry out its experimental determination under the same temperature regime.

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