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Borax Crystallization Kinetics in a Pitched‐ Blade Turbine/Straight‐Blade Turbine Dual‐ Impeller Crystallizer (CROSBI ID 254661)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Čelan, Antonija ; Ćosić, Marija ; Kuzmanić, Nenad Borax Crystallization Kinetics in a Pitched‐ Blade Turbine/Straight‐Blade Turbine Dual‐ Impeller Crystallizer // Chemical engineering & technology, 41 (2018), 7; 1342-1349. doi: 10.1002/ceat.201700443

Podaci o odgovornosti

Čelan, Antonija ; Ćosić, Marija ; Kuzmanić, Nenad

engleski

Borax Crystallization Kinetics in a Pitched‐ Blade Turbine/Straight‐Blade Turbine Dual‐ Impeller Crystallizer

Main focus of this work was to investigate the influence of hydrodynamic conditions on crystallization kinetics and properties of borax crystals obtained in a 15 dm 3 dual impeller batch cooling crystallizer. The two impellers used, pitched and straight blade turbine, were mounted on the same shaft. Hydrodynamics was analyzed through the values of mixing time and specific fluid flow patterns generated. Results indicate that wider metastable zones were generally observed at impeller positions characterized by higher mixing times. In those cases, growth rate constants were lower what resulted in a formation of smaller but more regularly shaped crystals. These findings imply that dual impeller position should be taken into account in order to produce crystals of desired characteristics.

Crystallization, Impeller off-bottom clearance, Impeller spacing, Mixing, Dual impeller system

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Podaci o izdanju

41 (7)

2018.

1342-1349

objavljeno

0930-7516

1521-4125

10.1002/ceat.201700443

Povezanost rada

Kemijsko inženjerstvo

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