Abstract
In the presented work, an attempt was made to extract humic acids from the Shubarkol field to create environmentally safe structural meliorants for the prevention and/or restoration of eroded soil s of the Republic. The choice of domestic lignite and humic acid as structural components has taken into account their naturalness and safety for the environment. The influence of five factors (extraction temperature and time, alkali concentration, ratio o f coal to alkaline solution and mechanical grinding time of coal) on the extraction of humic acids by probability planning method was studied. The IR spectroscopy method showed that humic acids have more active acid groups than primary coal.