Sulphate and Nitrate Fertilizers

CIM Bulletin, 1971

BRAD GUNN, Head, Chemistry Division, Saskatchewan Research Council, Saskatoon, Saskatchewan

Our program has been dictated by the necessity of broadening our markets through converting potash chemicals to fertilizers more in demand than potassium chloride. To this end, we have undertaken studies on methods of preparing potassium sulphate or potassium magnesium sulphate by rather simple conversion. When mixtures of sodium and magnesium sulphates are reacted with potassium chloride, the ratio of sodium to magnesium is quite pertinent. A range of ratios has been selected and the conversions of potassium chloride to sulphate have been assessed by cyclic operations. Results from experimental procedures for producing potassium nitrate are also available. The influence on recovery for systems including organic solvents is assessed for a variety of situations.
Keywords: ammonium sulphate, hydrochloric acid, magnesium sulphate, potassium chloride, potassium nitrate, Fertilizers, Magnesium, Nitrates, Potassium, Potassium chloride, Process, Processes, Sulphate, Sulphates, Systems