A contribution to the study of CuSO4∙5H2O solubility in aqueous media
DOI:
https://doi.org/10.3989/revmetalm.1999.v35.i1.605Keywords:
Copper, Copper sulphate, Solubility, ZincAbstract
Pentahydrate copper sulphate (Blue vitriol) is a copper salt used in minerallurgy as activator reagent in concentration methods by flotation for sulphide ores. In this work, crystallization conditions of copper sulphate solutions have been determined as a function of both temperature and sulphuric acidity. The results obtained showed that Cu2+ concentration in the solution is mainly a direct function of the logarithm of temperature and the sulfuric acid concentration. The influence of Zn2+ presence in copper sulphate solubility has been also studied at ambient temperature. Results obtained led to a multiple linear regression between Cu2+ concentration in the solution and sulphuric acid and Zn2+ concentrations in the medium. Finally, a comparison between the results obtained and data available in the literature is made.
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