Chemistry Journal of Moldova

EVALUATING THE METHODS USED FOR THE REGENERATION PROCESS OF COPPER-ZINC SOLUTIONS

Author(s):

Vita Datsenko and Vasyl Larin


Field: Industrial chemistry
Type: Research paper
Pages: 11
Keywords:

waste, heavy metal, regeneration, reagent method, treatment efficiency.


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DOI: http://dx.doi.org/10.19261/cjm.2021.793
 
Graphical Abstract: The purpose of this study was to investigate the physicochemical particularities of the regeneration processes that occur in spent sulphate copper-zinc solutions using the reagent methods of crystallization, cementation, and sedimentation. A comparative analysis of the results of the studies of regeneration processes has shown that the content of the extraction of Cu2+ and Zn2+ ions by the crystallization method makes up to 97.2% and 49.7%, respectively; by the contact displacement method to 99.9% and 95.4%, respectively; and by the deposition method it makes up to 99.9% and 99.9%, respectively. The presented study can be used for improvements in the electroplating productivity.


 

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