Influence of Powder Pulp and Method of Obtaining Charge on Phase Composition and Characteristics of Iron-Kalium-Oxide Material / Yu. I. Rvabkov, A. Yu. Bugaeva, I. V. Loukhina, E. G. Kazakova // XXI Mendeleev Congress on general and applied chemistry, 9-13 September, 2019, Saint Petersburg : book of abstract in 6 volumes. - Saint Petersburg, 2019. - Vol. 2a : Chemistry and technology of materials. - 2019. - P. 90.