Open AccessDetermination of the optimal conditions for obtaining potassium nitro-humate from lignite
Author(s) -
Zoran Miličević,
Petar R. Petrović
Publication year - 2004
Publication title -
hemijska industrija
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.147
H-Index - 19
eISSN - 2217-7426
pISSN - 0367-598X
DOI - 10.2298/hemind0401019m
Subject(s) - potassium , chemistry , potassium hydroxide , nitric acid , humic acid , nitro , raw material , fertilizer , inorganic chemistry , organic chemistry , alkyl
Raw lignite is enriched by humic acids by oxidation with nitric acid. The optimal conditions for producing potassium nitro-humate were defined by investigating the level of neutralization of the oxidized lignite, by means of potassium hydroxide. The increased content of humic acids and potassium in potassium nitro-humate makes it applicable as an organic-mineral fertilizer