F. Farahmand, D. Moradkhani, M. S. Safarzadeh and F. Rashchi, “Brine Leaching of Lead-Bearing Zinc Plant Residues: Process Optimization Using Orthogonal Array Design Methodology,” Hydrometallurgy, Vol. 95, No. 3-4, 2009, pp. 316-324.

has been cited by the following article:

• TITLE: Kinetic Analysis of Isothermal Leaching of Zinc from Zinc Plant Residue

  AUTHORS: Ali Reza Eivazi Hollagh, Eskandar Keshavarz Alamdari, Davooud Moradkhani, Ali Akbar Salardini

  KEYWORDS: Zinc; Hydrometallurgy; Kinetic Model; Zinc Plant Residue; Model-Free Method

  JOURNAL NAME: International Journal of Nonferrous Metallurgy, Vol.2 No.1, January 25, 2013

  ABSTRACT: The sulfuric acid leaching of zinc plant residues was studied in an attempt to find a suitable hydrometallurgical method for zinc recovery. The parameters evaluated consist of reaction time, Solid-to-liquid-ratio, reaction temperature, agitation rate and pH. The results of kinetic analysis of the leaching data under various experimental conditions indicated that there is a reaction controlled by the solution transport of protons through the porous product layer with activation energy of about 1 kJ/mol for different constant solid to liquid ratios. Based on the shrinking core model (SCM), the following semiempirical rate equation was established:1-3(1-a)2/3+2(1-a)=0.001187×[H+]0.016×[(S/L)]-1.34×exp(-1/RT) ×t. On the other hand, activation energy was obtained from a model-free method using isothermal measurements. Values for activation energy were calculated as a result of the conversion function with an average of 2.9 kJ/mol. This value is close to that determined previously, using shrinking core model (SCM).