Correlation between the quality indicators of activated coal in vodka technology

Introduction. The purpose of the publication is to establish correlation relations between the quality indicators of active coal (AC) used in the distillery production in vodka technology. Materials and methods. AC of natural origin, which is used for distillery production. Standard methods of determination and quantitative characteristics of AC quality indicators. Mathematical-statistical methods of research are linear correlation analysis based on the Pearson correlation coefficient. Results and discussion. It was found that the correlation coefficient ( r ) between iodine adsorption activity ( A i. ), which characterizes the amount and volume of micropore AC with diameter D m <2 nm, including nanopor with diameter D m <1 nm, and methylene blue ( A m.b. ), which depends on the mesopore volume with a diameter D me =2…50 nm, is equal to 0.93. The total volume of the micro- and mesoporous space determines the total sorption capacity of AC relative to the organic impurities present in the water-alcohol mixtures. AC's sorption activity also depends on its fractional composition. The correlation (reverse dependence) between adsorption activity on acetic acid ( A a.a. ) and the mass fraction of the sorbent residue on a screen with a cloth №10 ( F №10 ) with a coefficient r =-0,94 was established. Reducing the mass fraction of the residual on a screen with a cloth from 97…98% to 62…64% leads to an increase in adsorption activity of AС by acetic acid to 117 ml versus 62 ml. This is directly due to the fact that the residual sorbent on the sieve content of