A Study on the Synthesis of Lithium Carbonate (Li2CO3) from Waste Acidic Sludge

• Autorzy: Choi Dong Hyeon , Wang Jei-Pil

Identyfikatory

DOI

10.24425/amm.2020.133698

• Języki publikacji: EN

Abstrakty

EN

In this study, the synthesis of lithium carbonate (Li₂ CO₃ ) powder was conducted by a carbonation process using carbon dioxide gas (CO₂ ) from waste acidic sludge based on sulfuric acid (H₂ SO₄ ) containing around 2 wt.% lithium content. Lithium sulfate (Li₂ SO₄ ) 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°C to 900°C within 2 hours. To prevent further oxidation during carbonation, calcium sulfate (CaO₄ S) 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.

Słowa kluczowe

EN

lithium carbonate; thermogravimetric apparatus; lithium sulfate; carbon dioxide

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2020
• Tom: Vol. 65, iss. 4
• Strony: 1351--1355
• Opis fizyczny: Bibliogr. 23 poz., rys., tab., wzory

Twórcy

autor

Choi Dong Hyeon

• Pukyong National University, Department of Metallurgical Engineering, Busan, 48513, Korea

autor

Wang Jei-Pil

• Pukyong National University, Department of Metallurgical Engineering, Busan, 48513, Korea

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Uwagi

EN

1. This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2019R1F1A1049405).

PL

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).