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    STUDIA CHEMIA - Issue no. 1 / 2006  
         
  Article:   STUDIES ON THE NATRIUM SULPHATE SALTING-OUT CRYSTALLIZATION II. CRYSTALLIZATION KINETICS.

Authors:  ADINA GHIRIȘAN, SIMION DRÄ‚GAN, ALEXANDRU POP, VASILE MICLÄ‚UȘ.
 
       
         
  Abstract:  The kinetic of nucleation and growing of the crystal nuclei in the salting-out crystallization of natrium sulphate were studied. The influence of kinetic parameters (energy consumption or agitator power input, temperature and growth rate) on the second nucleation was determined. The influence of the hydrodynamic conditions and of the temperature on the average size of the obtained crystals was discussed. A value of activation energy of 5.4•104 J/mol for the nucleation process was determined.  
         
     
         
         
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