Abstract

One of the main uses given to ferrous sulphate in the pharmaceutical industry is that of iron supplement. The objectives of this work were to recycle a Cuban metallurgical solid waste with high iron concentration in its two oxidation forms, as well as the finding of optimal conditions for the leaching reaction of this solid waste with sulfuric acid. These results will allow defining a technology for the synthesis of iron inorganic salt for the pharmaceutical industry. A complete factorial experimental design was made, which included three Independent variables on three different levels (3^3) in order to optimize extraction of iron (II) and iron (III). These variables were: sulfuric acid concentration, reaction temperature and molar relation between sulfuric acid and both iron species. The goal of multiple optimizations was to maximize conversions of both iron species and their concentrations in the final liquor, favouring the first.

Recommended Citation

Fernandez, Gustavo; Diaz, Zahili; Menéndez, Zurima; Pérez, Oscar; Zarragoitia, Alain; Benitez, Malvina; and Perdomo, Iraelio (2007) "Leaching of Metallurgical Solid Wastes to Obtain Iron Salts for the Pharmaceutical Industry," International Journal of Chemical Reactor Engineering: Vol. 5: A2.
Available at: http://www.bepress.com/ijcre/vol5/A2