Abstract

In the present study, aimed at the production of phosphate compounds, the optimum process conditions were sought for the dissolution of phosphate rock from the Mardin-Mazidaǧi concentrate. The dissolution of this phosphate rock in aqueous solution saturated with a mixture of Cl 2SO 2 gases was optimized by passing Cl 2 gas through the final solution. Reaction temperature, solid-liquid ratio, Cl 2 gas flow rate, reaction period and stirring speed were employed as parameters. Using the Taguchi Fractional Design Method, it was found that the optimum process conditions, at which 93.35% P 2O 5 conversion was reached, were as follows: Reaction temperature: 20°C Solid-liquid ratio: 1 7 (w/v) Cl 2 gas flow rate: 120 cm 3 min −1 Reaction period:20 min Stirring speed: 600 min −1

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