TY - JOUR N2 - In this study, the synthesis of lithium carbonate (Li2CO3) powder was conducted by a carbonation process using carbon dioxide gas (CO2) from waste acidic sludge based on sulfuric acid (H2SO4) containing around 2 wt.% lithium content. Lithium sulfate (Li2SO4) powder as a raw material was reacted with CO2 gas using a thermogravimetric apparatus to measure carbonation conditions such as temperature, time and CO2 content. It was noted that carbonation occurred at a temperature range of 800℃ to 900℃ within 2 hours. To prevent further oxidation during carbonation, calcium sulfate (CaO4S) was first introduced to mixing gases with CO2 and Ar and then led to meet in the chamber. The lithium carbonate obtained was examined by inductively coupled plasma–mass spectroscopy (ICP-MS), X-ray diffraction (XRD) and scanning electron microscopy (SEM) and it was found that of lithium carbonate with a purity above 99% was recovered. L1 - http://www.czasopisma.pan.pl/Content/116823/PDF/AMM-2020-4-22-Jei%20Pil%20Wang.pdf L2 - http://www.czasopisma.pan.pl/Content/116823 PY - 2020 IS - No 4 EP - 1355 DO - 10.24425/amm.2020.133698 KW - Lithium carbonate KW - thermogravimetric apparatus KW - lithium sulfate KW - carbon dioxide A1 - Choi, Dong Hyeon A1 - Wang, Jei Pil PB - Institute of Metallurgy and Materials Science of Polish Academy of Sciences PB - Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences VL - vol. 65 DA - 2020.09.10 T1 - A Study on the Synthesis of Lithium Carbonate (Li2CO3) from Waste Acidic Sludge SP - 1351 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/116823 T2 - Archives of Metallurgy and Materials ER -