A brief overview on the dissolution mechanisms of sulfide minerals in acidic sulfate environments at low temperatures: Emphasis on electrochemical cyclic voltammetry analysis

Zhang Yisheng; Zhao Hongbo; Qian Lu; Sun Menglin; Lv Xin; Zhang Luyuan; Petersen Jochen; Qiu Guanzhou

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A brief overview on the dissolution mechanisms of sulfide minerals in acidic sulfate environments at low temperatures: Emphasis on electrochemical cyclic voltammetry analysis

机译：浅谈低温酸性硫酸盐环境中硫化物矿物质的溶出机制：强调电化学循环伏安法分析

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摘要

(Bio)Hydrometallurgy is a relatively economical and eco-friendly processing technology for sulfide minerals. Sulfide minerals degradation at abandoned mine sites also results in complex environmental problems. Although extensive studies have been done to explore the dissolution mechanisms of various sulfide minerals in acidic (microbial) sulfate environments, a systematic comparison of the findings is still needed. This paper summarizes the research into the dissolution mechanisms of several sulfide minerals, predominantly under bioleaching conditions. Especially, electrochemical cyclic voltammetry studies of various minerals are shown. Additionally, effects on the solid phase, including decomposition products and precipitates formed during the degradation processes, are discussed.

机译：（BIO）氢化矿冶是硫化物矿物的一种相对经济型和环保的加工技术。硫化物矿物质降解在废弃的矿地区也导致复杂的环境问题。尽管已经进行了广泛的研究来探讨酸性（微生物）硫酸盐环境中各种硫化物矿物的溶出机制，但仍然需要对结果进行系统的比较。本文总结了几种硫化物矿物质溶出机制的研究，主要是在生物浸入条件下。特别地，示出了各种矿物的电化学循环伏安法研究。另外，讨论了在降解过程中形成的固相的影响，包括在降解过程中形成的分解产物和沉淀物。

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来源
《Minerals Engineering》 |2020年第1期|共15页
作者
Zhang Yisheng; Zhao Hongbo; Qian Lu; Sun Menglin; Lv Xin; Zhang Luyuan; Petersen Jochen; Qiu Guanzhou;
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作者单位

Cent South Univ Sch Minerals Proc &

Bioengn Changsha Hunan Peoples R China;

Cent South Univ Sch Minerals Proc &

Bioengn Changsha Hunan Peoples R China;

Cent South Univ Sch Minerals Proc &

Bioengn Changsha Hunan Peoples R China;

Cent South Univ Sch Minerals Proc &

Bioengn Changsha Hunan Peoples R China;

Cent South Univ Sch Minerals Proc &

Bioengn Changsha Hunan Peoples R China;

Cent South Univ Sch Minerals Proc &

Bioengn Changsha Hunan Peoples R China;

Univ Cape Town Dept Chem Engn Rondebosch South Africa;

Cent South Univ Sch Minerals Proc &

Bioengn Changsha Hunan Peoples R China;

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原文格式 PDF
正文语种 eng
中图分类矿业工程;
关键词
Sulfide minerals; Acidic (microbial) environments; Dissolution mechanisms; Cyclic voltammetry; Solid phase;

机译：硫化物矿物质;酸性（微生物）环境;溶出机制;循环伏安法;固相;

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1. A brief overview on the dissolution mechanisms of sulfide minerals in acidic sulfate environments at low temperatures: Emphasis on electrochemical cyclic voltammetry analysis [J] . Zhang Yisheng, Zhao Hongbo, Qian Lu, Minerals Engineering . 2020,第1期

机译：浅谈低温酸性硫酸盐环境中硫化物矿物质的溶出机制：强调电化学循环伏安法分析
2. Stability of Coatings on Sulfide Minerals in Acidic and Low-Temperature Environments [J] . Kang Chan-Ung, Jeon Byong-Hun, Kumar Rahul, Mine water and the environment . 2017,第3期

机译：酸性和低温环境中硫化矿物上的涂层稳定性
3. Electrochemical Reduction of [Ni(Mebpy)(3)](2+): Elucidation of the Redox Mechanism by Cyclic Voltammetry and Steady-State Voltammetry in Low Ionic Strength Solutions [J] . ChemElectroChem . 2020,第6期

机译：[Ni（MEBPY）（3）]（2+）的电化学减少：通过循环伏安法和低离子强度溶液中的稳态伏安法阐明氧化还原机制
4. Electrochemical and microbial assisted dissolution of mineral sulfides in acidic and corrosive media for the recovery of value metals [C] . Christoph TANNE, Axel SCHIPPERS European corrosion congress;International corrosion congress;Pprocess safety congress . 2017

机译：电化学和微生物辅助的矿物硫化物在酸性和腐蚀性介质中的溶解，以回收有价金属
5. THE KINETICS OF THE DISSOLUTION REACTIONS OF COPPER AND COPPER - IRON-SULFIDE MINERALS USING FERRIC-SULFATE SOLUTIONS. [D] . LOWE, DONALD FRANK. 1970

机译：硫酸铁溶液对铜和铜-硫化铁矿物质溶解反应的动力学。
6. Dielectric Breakdown and Post-Breakdown Dissolution of Si/SiO2 Cathodes in Acidic Aqueous Electrochemical Environment [O] . Jeongse Yun, Yun-Bin Cho, Woohyuk Jang, -1

机译：酸性水电化学环境中Si / SiO2阴极的介电击穿和击穿后溶解
7. Electrochemical Reduction of Ni(Mebpy)32+. Elucidation of the Redox Mechanism by Cyclic Voltammetry and Steady-State Voltammetry in Low Ionic Strength Solutions. [O] . Koushik Barman, Martin, A. Edwards, 2020

机译：Ni（MEBPY）3 2+的电化学还原。低离子强度溶液中循环伏安法和稳态伏安法阐明氧化还原机理。
8. Study of the dissolution mechanism by chemical and electrochemical oxidation-reduction of actinide dioxides (UO(sub 2), NpO(sub 2), PuO(sub 2), and AmO(sub 2)) in an acid aqueous medium. (Etude du mecanisme de la dissolution par oxyreduction chimique et electrochimique des bioxydes d'actinides (UO(sub 2), NpO(sub 2), PuO(sub 2), AmO(sub 2)) en milieu aqueux acide) [R] . Berger, P 1991

机译：研究通过化学和电化学氧化还原act系元素二氧化物（UO（sub 2），NpO（sub 2），puO（sub 2）和amO（sub 2））在酸性水介质中的溶解机理。（Etude du mecanisme de la dissolution par oxyreduction chimique et electrochimique des bioxydes d'actinides（UO（sub 2），NpO（sub 2），puO（sub 2），amO（sub 2））en milieu aqueux acide）

A brief overview on the dissolution mechanisms of sulfide minerals in acidic sulfate environments at low temperatures: Emphasis on electrochemical cyclic voltammetry analysis

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