Disposal of slime storage lyes during potash production
https://doi.org/10.29235/1561-8331-2020-56-3-365-373
Abstract
Processing of potash production slime storage lyes with the aim to obtain useful components with evaporation method was investigated. It was estimated that during the first and the second stages of evaporation in vacuum crystallization devise (VCD) sodium chloride was crystallized from the hot (90-95 °C) lye, and potassium chloride - when cooling down to 35 °C. Content of basic components (KCl & NaCl) in the precipitate was more than 90 %. During the third stage, while cooling down to 20-25 °C, and the fourth stage from the hot (90-95 °C) lye, a mixture of sodium and potassium chlorides was crystallized. During the next evaporation and cooling up to 20-25 °C together with sodium and potassium chlorides, carnallite was obtained, the decomposition of which leads to potassium chloride formation.
About the Authors
V. V. Shauchuk
Institute of General and Inorganic Chemistry, National Academy of Sciences of Belarus
Belarus
Belarus
Viacheslav V. Shauchuk - Corresponding Member of the National Academy of Sciences of Belarus, D. Sc. (Chemistry), Head of the Laboratory.
9/1, Surganov Str., 220072, MinskZ. A. Hotto
Institute of General and Inorganic Chemistry, National Academy of Sciences of Belarus
Belarus
Belarus
Zemfira A. Hotto - Researcher.
9/1, Surganov Str., 220072, MinskT. P. Sakalova
Institute of General and Inorganic Chemistry, National Academy of Sciences of Belarus
Belarus
Belarus
Tatiana P. Sokolova - Junior Researcher.
9/1, Surganov Str., 220072, MinskD. A. Kaniok
Institute of General and Inorganic Chemistry, National Academy of Sciences of Belarus
Belarus
Belarus
Denis A. Kaniok - Researcher.
9/1, Surganov Str., 220072, MinskReferences
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