Analysis of effective parameters on cadmium cementation reaction from the perspective of diffusion

Document Type : Research Paper


1 Department of Chemical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran

2 Innovation Center, Payame Noor University, Iran

3 Department of Chemistry, Ayatollah Boroujerdi University, Boroujerd, Iran



Cadmium is one of the impurities to be removed from the electrolyte solution before zinc electrowinning. Removal of cadmium by cementation with zinc powder is diffusion-controlled. This study analyzed the parameters that effective the removal of cadmium by zinc powder from the point of view of molecular diffusion. Studies have shown that parameter changes can be easily justified by this mechanism, and a logical connection is raised between the theoretical issues and what is happening in reality.

Graphical Abstract

Analysis of effective parameters on cadmium cementation reaction from the perspective of diffusion


  • Analysis of parameters affecting the cadmium cementation process from the point of view of diffusion coefficient.
  • Investigation of the interaction of effective parameters on the removal of cadmium by zinc powder from zinc electrolyte solution.
  • Removal of high concentrations of cadmium from zinc electrolyte solution by zinc powder cementation method.
  • Use of response surface method for data analysis.


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