Russian state geological exploration university named after Sergo Ordzhonikidze (department «Construction of water supply and sanitation systems and structures», professor)
from 01.01.2023 until now
Russian Federation
Russian Federation
The kinetics and mechanisms of chemical reactions involved in the decomposition of eggshells are studied using experimental (thermogravimetric analysis and differential thermal analysis), as well as theoretical models. The presence of the calcite phase in the raw eggshell and the gradual formation of calcium oxide from it during firing has been confirmed experimentally. Recycled eggshells demonstrate better crystallinity compared to commercial calcium carbonate. It is proved that eggshells can be used directly as a catalyst, adsorbent and as a raw material for the synthesis of value-added materials, which reduces energy consumption and minimizes the impact on the natural environment by recycling the inevitable waste of the food industry.
eggshell, calcination, synchronous thermal analysis, thermogravimetric curves, differential scanning calorimetry
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