Obtaining and painting properties of red iron oxide pigment from spent pickling solutions
T A XolmurodovDepartment of technology of paints and coatings, Kazan National Research Technological University, 68 Karl Marks Street, Kazan, 420015, RussiaА П СветлаковDepartment of technology of paints and coatings, Kazan National Research Technological University, 68 Karl Marks Street, Kazan, 420015, RussiaOybek MirzaevDepartment of technology of paints and coatings, Kazan National Research Technological University, 68 Karl Marks Street, Kazan, 420015, RussiaVladimir E. KatnovKazan Federal University, 18 Kremlin Street, Kazan, 420008 RussiaM A MirzayevaFerghana Polytechnic Institute, Ferghana, Uzbekistan
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Abstract A technique has been developed for producing iron oxide pigment based on galvanic waste. The effect of the norm, concentration and nature of the precipitant, temperature and time on the deposition of Fe(OH) 3 was studied. To determine the effect of the nature of the neutralizer on the phase composition of the pigments, an X-ray phase and thermogravimetric analysis was carried out. It was established that the main phase is Ca 2 Fe 2 O 5 , and p-Ca 2 SiO 4 is present as an impurity. The basic physicochemical properties of the obtained pigment were studied.
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