JOURNAL of the Tunisian Chemical Society

serving the Research, the Education and the Industry

Factorial design optimisation of magnesium amount in wet process phosphoric acid

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By using a 23 factorial design, we have determined the effect of three variables on both the amount of magnesium precipitation in phosphoric acid and the amount of P2O5 losses. While NH4+ appeared to control the form of magnesium precipitate, Al3- and F- appeared to have the greatest effect on the amount of magnesium precipitation.

M. Feki, M, Chaabouni, H.F. Ayedi

Pages 39-48

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