Hydrometallurgy is a specialized branch of extractive metallurgy dealing with metal recovery from ores,
concentrates, and other metallurgical intermediate products in aqueous phase. These processes operate typically
at the temperatures between 50 and 250 °C, which is lower than that used in pyrometallurgical processes.
The knowledge of solubilities of solids and gases in electrolyte systems is required for process development.
In this work, H2SO4−FeSO4−H2O and H2SO4−Fe2(SO4)3−H2O systems have been studied for their interest
in the zinc leaching process and also for regeneration of pickling acids in stainless steel manufacturing. Database
development and Gibbs energy minimization methods for evaluating relevant process systems are discussed.
Ternary phase diagrams were compiled with new optimized Pitzer parameters. Development of the databases
and calculations presented in this work are the kinds of tools, which may be the basis for controlling the
processes in the future.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.