Optimization and development of hydrometallurgical processes - Couverture souple

Darmane, Yassine

 
9786204347684: Optimization and development of hydrometallurgical processes
Couverture souple
ISBN 10 : 6204347683 ISBN 13 : 9786204347684
Editeur : Our Knowledge Publishing, 2021

Synopsis

The application of a feedforward control system based on an artificial neural network model in the cobalt industry has identified the neutralization step as a bottleneck step. It leads to a considerable reduction in productivity and an increase in cycle time. The implementation of the FF-RNA control scheme allowed to control the pH at its optimal value. This control also allowed the reduction of the solids content, which in turn led to a control of the cycle time and an optimal production. A study of the leaching of manganese residues by sulfuric acid and potassium oxalate was carried out. The effects of acid concentration, oxalate and temperature on the dissolution rate of Mn and others were determined. The leaching rate is strongly influenced by temperature and both [K2C2O4] and [H2SO4] concentrations. The observed effects of the variables on leaching rate are consistent with a kinetic model for chemical control. The activation energy for MnO2 leaching was calculated. A reaction order was also determined.

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Éditeur
Our Knowledge Publishing
Date d'édition
2021
Langue
anglais
ISBN 10 
6204347683
ISBN 13 
9786204347684
Reliure
Broché
Nombre de pages
52
Coordonnées du fabricant
non disponible
Personne responsable
non disponible