Treatment of Fe(III) ions from leaching solutions with neutralisation and precipitation

Danovska, Milena and Golomeova, Mirjana and Karanfilov, Dejan and Zendelska, Afrodita (2013) Treatment of Fe(III) ions from leaching solutions with neutralisation and precipitation. In: 5th Mining Congress BALKANMINE, 18-21 Sept 2013, Ohrid, R. Macedonia.


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The results of the study of leaching solutions (in the further text: productive solutions) from “BUCIM” mine treated with various neutralizing agents and combinations of two or a number of neutralizing agents are presented in this work. Leaching of copper with sulfuric acid is forwarded with the leaching of many other elements which are present in the ores. Among the elements is Fe (III) which abuses the Cu2+ Ions in further processing in production of cathode copper. The main objective of the researches is the elimination of Fe(III) ions from the solutions by precipitation in Fe(OH)3. So, this creates the positive effects in the cathode copper production. With suitably chosen neutralizer, following effects are achieved:  Raising the pH value to 4.0-4.5; and improving condition on the solutions for further processing;  Removal of Fe (III) ions from the solutions to a concentrations of less than 0.1 g/L;  Economic effects. In doing so, found the optimum pH, which allows maximum precipitation of the iron3+ ions, and simultaneously the persistence of Cu2+, in productive solutions.

Item Type: Conference or Workshop Item (Paper)
Subjects: Engineering and Technology > Chemical engineering
Divisions: Faculty of Natural and Technical Sciences
Depositing User: Afrodita Zendelska
Date Deposited: 06 Nov 2013 11:36
Last Modified: 06 Nov 2013 11:36

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