Electrochemical properties of LiNi0.5Mn1.3Ti0.2O4/Li4Ti5O12 cells

Liu, Guoqiang; Wang, Xi; Gao, Yajie; Lei, Wen; Guangyin, Liu; Zheng, Jiayi; Cen, Peng; Liu, Ying

doi:10.1007/s12613-012-0579-1

Cited by 2 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Given the increasingly strict environmental protection regulations with regard to sustainable development and certain disadvantages of inorganic acids present in the leaching process, organic acids such as citric, acetic and oxalic acids can be advantageous leaching agents. However, weak acidity is characteristic of organic acids, and their low boiling temperatures and instability restrict their industrial applications [2,[16][17][18]. Numerous studies on the extraction of copper from oxidized copper minerals using alkaline media, such as ammonia, ammonia/ammonium carbonate, ammonium chloride, ammonium sulfate, -159 -and ammonium nitrate, have been conducted [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Leaching of Copper from Malachite with Methane-sulfonic Acid

Feng

Wen

Zhao

et al. 2015

SERDJ

View full text Add to dashboard Cite

The process of leaching copper from malachite using methane-sulfonic acid (MSA) as an organic leaching reagent was investigated in this study. The effects of acid concentration, reaction temperature, particle size, and stirring speed on the copper leaching fraction were determined. Results indicated that leaching reagent concentration and reaction temperature exerted significant effects on copper extraction, whereas particle size and stirring speed exerted a relatively minor effect on the leaching rate. The kinetics of the dissolution process followed the shrinking core model, and a new kinetic model was found suitable to represent the rate-controlling step. The apparent activation energy of this process was determined to be 24.48 kJ/mol, and a semi-empirical rate equation was obtained to describe the process.

show abstract