Przemysl Chemiczny, Vol.95, No.10, 1908-1910, 2016
A technology for recovering potassium sulfate(VI) from the biofuel production waste
Glycerol residue from biodiesel prodn. was combusted alone at 900 degrees C or in a mixt. with natural gas at 765 or 900 degrees C to recover energy and K2SO4. The final product had a purity of 97,3%. Its yield was 75% of the theor. one.