Attempts to obtain potassium and phosphorus from fly ash from biomass
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Żelazny, Sylwester
Čablík, Vladimír
Čablíková, Lucie
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Flay ash from industrial combustion of biomass was leached with dild. (10%) H2SO4 and HNO3 to recover K and P. The leaching with HNO3 was more efficient than with H2SO4 and resulted in recovering up to 70.2% K and up to 60.4% P contained in the flue ash.
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Przemysł Chemiczny. 2015, tom 94, nr. 6, s. 956-959.