A numerical simulation study for the zone refining processes of cadmium and tellurium

Application of an Artificial Intelligence Technique to Improve Purification in the Zone Refining Process

“…Some attempts have been made to improve the refining efficiency by considering the effect of zone length on solute redistribution. [5][6][7][8][9] Liu et al 9 carried out a parametric study to obtain the most favorable freezing interfaces and molten zone sizes for zone refining of Cd and Te. The flow field in the molten zone was studied to determine its effect on impurity transport.…”

Effect of applied electric current on impurity transport in zone refining

“…Extensive theoretical, numerical, and experimental efforts have been made to achieve this goal [14][15][16][17][18][19][20][21][22][23][24][25][26]. These efforts have focused mainly on enhancing mass transport of impurities in the vicinity of the solidification interface, and on increasing the travel rate of the molten zone.…”

“…The enhancement of mass transport is achieved by optimizing molten zone length and molten zone shapes. The higher travel rate is realized by achieving higher temperature gradients in the vicinity of the solidification interface [24,25].…”

“…Results were in good agreement with those of the production lines. Then, the fluid flow and impurity concentration distributions in a single molten zone were studied by considering a complete mass, heat, and momentum transport model [25]. A parametric study was carried out to obtain the most favourable freezing interfaces and molten zone sizes.…”