Carrollite Leaching in H2SO4-NaClO3 Media at Atmospheric Pressure

• Autorzy: Dong Bo , Wu Jian-Hui , Wu Jun , Zhang Xian-Peng , Zhai Jing-Jun

Identyfikatory

DOI

10.24425/amm.2020.131732

• Języki publikacji: EN

Abstrakty

EN

A new extraction process suitable for treating refractory CuCo₂S₄ under atmospheric pressure acidic leaching conditions was investigated. The effect of variables such as oxidant species, liquid-to-solid ratio, leaching time, oxidizing agent and mineral quality ratio, H₂SO₄ concentration, temperature and sodium chloride concentration on the extraction efficiency of Co, Cu and Fe from CuCo₂S₄ were investigated. Under optimal conditions including P₈₀-P₉₀ of the sample was d < 0.0074 mm, stirring speed of 400 rpm, leaching time of 8 h with sodium chlorate (NaClO₃) and mineral quality ratio of 0.5, 2 mol/L H₂SO₄, liquid-to-solid ratio of 7, leaching temperature of 90°C and 4 mol/L sodium chloride. The leaching efficiency of Co, Cu, and Fe were nearly 97.08%, 100%, and 92.45%, respectively. Furthermore, the contents of cobalt and copper in leaching residue were all less than 0.4 wt.%, which satisfies the requirements of industrial production.

Słowa kluczowe

EN

CuCo2S4; atmospheric leaching; H2SO4-NaClO3 media

• 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. 1
• Strony: 313--319
• Opis fizyczny: Bibliogr., 34 poz., fot., rys., tab., wzory

Twórcy

autor

Dong Bo

• Entral South University, School of Metallurgy and Environment, Changsha, 410083, China

autor

Wu Jian-Hui

• Entral South University, School of Metallurgy and Environment, Changsha, 410083, China

autor

Wu Jun

• College of Chemistry, Imperial College London, London, SW72AZ, England

autor

Zhang Xian-Peng

• Entral South University, School of Metallurgy and Environment, Changsha, 410083, China

autor

Zhai Jing-Jun

• Entral South University, School of Metallurgy and Environment, Changsha, 410083, China

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Uwagi

EN

1. This work was supported by the Guangdong Jiana Energy Technology Co., Ltd - Central South University Joint Research Fund (Project No: JNJJ201606)

PL

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