The influence of impurity inorganic salts on the physico-chemical and mechanical properties of potassium sulfate and potassium-magnesia
https://doi.org/10.29235/1561-8331-2019-55-2-223-232
Abstract
Complex research of the most important physico-chemical and mechanical properties (granulometric composition, hygroscopicity, caking, dusting, compactability, friability) of model system based on potassium sulfate and experimental samples of potassium sulfate and potassium-magnesia has been conducted. The experimental samples of potassium sulphate and potassium-magnesia were obtained in the processing of polymineral ore in the presence of various amounts of impurity inorganic salts (magnesium sulfate and chloride, sodium chloride). The obtained chlorine-free fertilizers have low hygroscopicity and low caking, but they are characterized by high dusting. Studies of the influence of dust-suppressors of different chemical nature on dusting of model and experimental samples of potassium sulfate and potassium-magnesia have shown that polyethylene glycol PEG-400 has the highest dust suppression effect on these fertilizers. Using PEG-400 has no negative influence to the friability, caking and compactability of fertilizers.
About the Authors
V. V. Shevchuk
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Viacheslau V. Shevchuk – Corresponding Member of the National Academy of Sciences of Belarus, D. Sc. (Chemistry), Head of the Department of Mineral Fertilizers
9/1, Surganov Str., 220072, Minsk
L. V. Dikhtievskaya
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Liudmila V. Dikhtievskaya – Ph. D. (Chemistry), Senior Researcher
9/1, Surganov Str., 220072, Minsk
T. P. Sokolova
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Tatiana P. Sokolova – Junior Researcher
9/1, Surganov Str., 220072, Minsk
L. F. Shlomina
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Liudmila F. Shlomina – Researcher
9/1, Surganov Str., 220072, Minsk
N. I. Pazniak
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Natallia I. Pazniak – Junior Researcher
9/1, Surganov Str., 220072, Minsk
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