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Effect of temperature on the leaching of copper oxide ore in phosphoric acid solution and kinetics
WU Dandan 1,LIU Shaowen 2,WEN Shuming 1 * #,DENG Jiushuai 1,JI Cuicui 1
1.Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093
2.Kunming Jinyinruntong Metallurgical co., Ltd, Kunming, 654100
*Correspondence author
#Submitted by
Funding: the Specialized Research Fund for the Doctoral Program of Higher Education (No.No.20105314110010)
Opened online:31 December 2013
Accepted by: none
Citation: WU Dandan,LIU Shaowen,WEN Shuming.Effect of temperature on the leaching of copper oxide ore in phosphoric acid solution and kinetics[OL]. [31 December 2013] http://en.paper.edu.cn/en_releasepaper/content/4577706
In this study, copper extraction from copper oxide ore using phosphoric acid solution as leaching agent was investigated, wherein the effects of the main factor temperature on the leaching of the copper oxide ore was researched, together with the leaching kinetics. It was experimentally demonstrated that the copper leaching rate increased with the increasing reaction temperature. Moreover, the leaching process can be described by the shrinking core model for surface chemical reaction. The activation energy of the leaching process was determined to be 30.65kJ/mol..
Keywords:Copper oxide ore;phosphoric acid; temperature; kinetics

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