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Ulzhalgas Nazarbek, Perizat Abdurazova, Saule Nazarbekova, Dina Assylbekova, Maksat Kambatyrov and Yerkebulan Raiymbekov
Organomineral potassium humate was extracted from coal mining waste from the Lenger deposit (Turkestan region, Kazakhstan) by alkaline extraction using an aqueous solution of potassium hydroxide. The time and temperature of the process were investigated ...
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