Kinetics of reduction leaching of manganese dioxide ore with Phytolacca Americana in sulfuric acid solution
Joint Authors
Zhong, Hong
Xue, Jianrong
Li, Changxin
Li, Jinzhong
Wu, Fangfang
Wang, Shuai
Source
Journal of Saudi Chemical Society
Issue
Vol. 20, Issue 4 (31 Jul. 2016), pp.437-442, 6 p.
Publisher
Publication Date
2016-07-31
Country of Publication
Saudi Arabia
No. of Pages
6
Main Subjects
Topics
Abstract EN
The leaching kinetics of reductive leaching of manganese from manganese dioxide ores (MDO) in dilute sulfuric acid in the presence of Phytolacca americana powder (PAP) was investigated.
The effects of stirring speed, leaching temperature and leaching time, particle size, weight ratio of PAP to MDO (CW) and sulfuric acid concentration (CH) on the leaching efficiency of manganese were studied.
The leaching efficiency of manganese based on the shrinking core model was found to be controlled by diffusion through the ash/inert layer composed of the associated minerals.
The apparent activation energy is 15.18 kJ mol1.
The experimental results indicate reaction order of 0.797 for CH and 1.25 for CW.
The overall leaching efficiency equations for MDO dissolution reaction with PAP in dilute sulfuric acid were proposed by a semi-empirical model.
American Psychological Association (APA)
Xue, Jianrong& Zhong, Hong& Wang, Shuai& Li, Changxin& Li, Jinzhong& Wu, Fangfang. 2016. Kinetics of reduction leaching of manganese dioxide ore with Phytolacca Americana in sulfuric acid solution. Journal of Saudi Chemical Society،Vol. 20, no. 4, pp.437-442.
https://search.emarefa.net/detail/BIM-693329
Modern Language Association (MLA)
Xue, Jianrong…[et al.]. Kinetics of reduction leaching of manganese dioxide ore with Phytolacca Americana in sulfuric acid solution. Journal of Saudi Chemical Society Vol. 20, no. 4 (Jul. 2016), pp.437-442.
https://search.emarefa.net/detail/BIM-693329
American Medical Association (AMA)
Xue, Jianrong& Zhong, Hong& Wang, Shuai& Li, Changxin& Li, Jinzhong& Wu, Fangfang. Kinetics of reduction leaching of manganese dioxide ore with Phytolacca Americana in sulfuric acid solution. Journal of Saudi Chemical Society. 2016. Vol. 20, no. 4, pp.437-442.
https://search.emarefa.net/detail/BIM-693329
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 442
Record ID
BIM-693329
