Recovery of Zinc from Oxide-Sulphide Zinc Ore Through Oxidation and Chelation

被引：4

作者：

Yang, Kun ^{[1
,3
]}

Sun, Chengyu ^{[1
,2
]}

Qu, Hongtao ^{[1
,2
]}

Shuo, Likun ^{[1
,2
]}

Luo, Yongguang ^{[1
,2
]}

Zhang, Libo ^{[1
,3
]}

Ma, Aiyuan ^{[4
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Yunnan, Peoples R China

[2] Yunnan Chihong Zn & Ge Co LTD, Qujing 655011, Yunnan, Peoples R China

[3] Natl Local Joint Lab Engn Applicat Microwave Ener, Kunming 650093, Yunnan, Peoples R China

[4] Liupanshui Normal Univ, Sch Chem & Mat Engn, Liupanshui 553004, Peoples R China

来源：

MATERIALS ENGINEERING-FROM IDEAS TO PRACTICE: AN EPD SYMPOSIUM IN HONOR OF JIANN-YANG HWANG | 2021年

关键词：

Chelation; Oxidation; Oxidative acid leaching; Extractive; Oxide-sulphide zinc ore; DISSOLUTION KINETICS; SPHALERITE;

D O I：

10.1007/978-3-030-65241-8_15

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, three different processes-chelation accompanied by oxidation, oxidation followed by chelation, and oxidative acid leaching followed by chelation-are designed for extraction of zinc from oxide-sulphide zinc ore, and through a comparison of the redox potentials, suitable oxidation additives are determined for each process. Besides, effects of oxidant additives doping level on zinc recovery are investigated. The results show that the zinc leaching degree can reach 83.72% with addition of NaO being 0.3 mol/L in the process of chelation accompanied by oxidation, the zinc leaching degree can reach 92.40% with NaO adding 0.5 mol/L in the process of oxidation followed by chelation, and the zinc leaching degree can reach 93.02% under a condition of NaClO doping level being 0.1 mol/L in the process of oxidative acid leaching followed by chelation. All three processes prove their value on extraction of oxide-sulphide zinc ores.

引用

页码：161 / 169

页数：9

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