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Technology of Sintering Phosphorite with KOH

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Abstract—

The paper shows a new technological approach to the processing of phosphorus-containing raw materials using Syrian phosphorite as an example. Thermodynamic calculations of possible processes of interaction of apatites with KOH and quartz are made, assumptions about the interaction are experimentally verified, and the resulting substances are determined by X-ray phase analysis. The results obtained allow us to recommend the method of sintering followed by leaching with water as a promising technology for the production of fertilizers from phosphorus-containing raw materials, bypassing the stage of production of extractive phosphoric acid.

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Funding

The work was carried out in accordance with the state assignment and the plans of the Research Institute of Chemical Technology of the Ural Branch of the Russian Academy of Sciences (no. AAAA-A19-119031890028-0).

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  1. Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, Yekaterinburg, Russia

    V. M. Skachkov

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Correspondence to V. M. Skachkov.

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Skachkov, V.M. Technology of Sintering Phosphorite with KOH. Theor Found Chem Eng 57, 316–320 (2023). https://doi.org/10.1134/S0040579523030181

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