Influence of the Mechanochemical Modification of Humic Acids on the Formation of Colloids in Solution

被引：0
|
作者：
Yudina, N. V. [1 ]
Savel'eva, A. V. [1 ]
机构：
[1] Russian Acad Sci, Siberian Branch, Inst Petr Chem, Tomsk 634055, Russia
来源：
SOLID FUEL CHEMISTRY | 2023年 / 57卷 / 05期
关键词：
brown coal; mechanical activation; humic acids; colloidal properties; BROWN-COAL; SUBSTANCES; ASSOCIATION; PH;
D O I：
10.3103/S0361521923050075
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The colloid-chemical properties of humic acids (HAs) were studied depending on the mechanochemical modification of their structure. An increase in the amount of acidic ionogenic groups and hydrophilic fragments in the composition of modified HAs facilitated a decrease in the excess energy of surface molecules. In an alkaline solution, two types of colloids characterized by a decrease in the energy of adsorption and the constant of adsorption equilibrium were formed as the concentration of HAs was increased.
引用
收藏
页码：314 / 318
页数：5
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