One-step method for obtaining potassium sulfate and processing of lye
https://doi.org/10.29235/1561-8331-2021-57-2-226-235
Abstract
Method of obtaining potassium sulfate with basic substance content higher 92 % shown. Process conditions: 110 % KCl (10 % excess substance from stoichiometry), mixing at temperature higher 95 °C during 30 min, mixing at temperature 0 °C for 1 hour, stirrer speed 500 rpm, sludge washing 15 % water from wet sludge weight, drying the washed sludge at 70–80 °C during 1 hour. The degree of evaporation of the solution at which the double salt of potassium and ammonium sulfate precipitated was determined. The degree is 30 % at the evaporated suspension cooled, and is 45 % at hot filtration.
About the Authors
V. V. Shauchuk
Institute of General and Inorganic Chemistry of the 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, Minsk
Z. A. Hotto
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Zemfira A. Hotto – Scientific Researcher
9/1, Surganov str., 220072, Minsk
A. S. Stromsky
ООО “EuroChem-projekt”
Russian Federation
Russian Federation
Anatoly S. Stromsky – Head of the Technological Department
line 26 V. I., h. 15, b. 2, Saint-Petersburg
A. A. Stromsky
ООО “EuroChem-projekt”
Russian Federation
Russian Federation
Aleksandr A. Stromsky – Lead Engineer
line 26 V. I., h. 15, b. 2, Saint-Petersburg
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