Open AccessOne-step method for obtaining potassium sulfate and processing of lye
Author(s) -
V. V. Shauchuk,
Z. A. Hotto,
A. S. Stromsky,
A. A. Stromsky
Publication year - 2021
Publication title -
vescì nacyânalʹnaj akadèmìì navuk belarusì. seryâ hìmìčnyh navuk
Language(s) - English
Resource type - Journals
eISSN - 2524-2342
pISSN - 1561-8331
DOI - 10.29235/1561-8331-2021-57-2-226-235
Subject(s) - potassium , potassium sulfate , mixing (physics) , filtration (mathematics) , ammonium sulfate , chemistry , salt (chemistry) , evaporation , sulfate , stoichiometry , suspension (topology) , chromatography , sodium sulfate , sodium , physics , statistics , mathematics , organic chemistry , quantum mechanics , homotopy , pure mathematics , thermodynamics
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.