The Influence of Some Technological Parameters on the Process of Precipitation the Hydrochloric Acid Extraction of Phosphates
М. R. Shamuratova, B. E. Sultonov, S. H. S. Namazov
Chemical Science International Journal · pp. 1–7 · Published 8 Dec 2018
10.9734/CSJI/2018/45393Abstract
The process of obtaining fertilising precipitate based on the interaction of off-balance ore phosphorites of Central Kyzylkum and chemically enriched phosphorite concentrate with hydrochloric acid, followed by precipitation of hydrochloric acid extraction with suspension of calcium hydroxide. The optimal parameters of the precipitation were determined for the first time in our country. Influence of calcium hydroxide norms on degree precipitation hydrochloricphosphoric acid extracts are studied. The resulting samples of precipitates under optimal conditions contain in their composition 23.63-24.19% P2O5(t.), 21.09-21.38% P2O5accep. by 2% citric acid to those 26.97-28.41% CaO(t.), 23.52-25.59% of CaOaccep.by 2% citric acid. The degree of precipitation equal 94.01-98.05%. Physical and chemical studies (x-ray phase analysis) of the mineralised mass and products of its processing were also carried out.
Cited by 1
M. Shamuratova, A. Giyasidinov, B. Sultonov · AIP Conference Proceedings · 2023
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