STUDIES REGARDING THE OPTIMAL CONDITIONS FOR THE SYNTHESIS OF COPPER AND IRON AMMONIUM PHOSPHATE

This paper presents the optimal conditions of separation of copper and ferrous ions resulted from residual solutions, and their revaluation as microelements fertilizers, as metal-ammonium phosphates. In order to precipitate this ions, we used diammonia phosphate and ammonia solution 25%. We studied the influence of certain factors (solution concentrations, temperature, process duration) about separation degree of copper and ferous ions. We determined the optimal conditions of the synthesis of copper and iron-ammonium phosphate, who determined a maximum separation degree of copper and iron from solution