相关参考文献
注意：仅列出部分参考文献，下载原文获取全部文献信息。
Article
Metallurgy & Metallurgical Engineering
Lei Zhang et al.
Summary: This study proposes an eco-friendly and efficient method to recover gold, iron, and silicon from cyanide tailings (CTs). By controlling the reduction atmosphere and temperature, >99% of cyanide can be selectively removed, along with 65.3% of encapsulated gold in iron oxide and sulfide. Mechanical activation reduces particle size and liberates 92.3% of gold encapsulated in silicate and iron oxide minerals, increasing the extraction efficiency of gold to 94.5% in a non-cyanide leaching process. Magnetic separation results in 60.9% grade and 74.6% recovery of iron concentrate, while the tailings with 28.4% Si grade can be used in building materials. This technology enables the harmless utilization of hazardous CTs and shows potential for industrial applications.
Article
Environmental Sciences
Haoyu Li et al.
Summary: A novel microwave-assisted chlorination thermal treatment recovery technology was proposed in this paper for the clean treatment of refractory cyanide tailings containing sulfur. The study compared the treatment capacity of common chlorinated agents and found CaCl2 to be the best chlorination agent. The specific action mechanism of CaCl2 in the microwave roasting process was studied, and a method and mechanism for removing residual harmful substances in roasting slag were proposed based on environmental assessment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Physical
Jianhua Ge et al.
Summary: Chlorination roasting technology can efficiently recover valuable metals from various types of solid waste, but its application in handling heavy metal solid waste still lacks comprehensive and systematic understanding, requiring further research and promotion.
SURFACES AND INTERFACES
(2022)
Article
Metallurgy & Metallurgical Engineering
Wen-wen Han et al.
Summary: This study investigated the process mineralogy of gold cyanide residues and carried out cyanide removal using three chemical methods. The results revealed that the residues primarily contained Si, S, and Fe, with pyrite being the main metallic mineral. The presence of iron-complex cyanides made the removal process difficult. The study also found that Na2SO3 oxidation method was a new and efficient approach for removing cyanide in the residues.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Materials Science, Multidisciplinary
Shunliang Liu et al.
Summary: This study investigated the optimal chlorine source for the recovery of gold and vanadium from carbonaceous refractory gold ore by chlorination heat treatment. The results showed that CaCl2 had a greater chlorine supply capacity and stronger reactivity with the ore. Under ideal conditions, 89.91% of gold and 83.26% of vanadium were recovered. The study also examined the chemical mechanisms and phase transitions during the roasting process, revealing that alkaline chlorine sources, especially CaCl2, destroyed the mineral structure.
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2022)
Article
Engineering, Environmental
Huimin Tang et al.
Summary: This study provided an in-depth review of smelting technologies for recovering platinum-group metals (PGMs) from spent automotive catalysts, proposing measures to improve recovery efficiency and solutions to reduce dependence on PGMs.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Haoyu Li et al.
Summary: This study utilized a cleaner chlorination thermal treatment method for gold recovery, identifying the main compounds involved in the chlorination reaction and the mechanism of gold recovery. Experimental results showed high gold recovery rates under specific conditions, while also successfully reducing pollution risks from the roasted waste materials.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Multidisciplinary
Hailin Long et al.
Summary: In this study, a process for the clean recovery of multiple valuable metals from cyanide tailings was proposed using chlorination roasting, achieving high recovery rates. Experiments identified optimal conditions, such as chlorinated agent dosage and roasting temperature, for maximum recovery of valuable metals.
SEPARATION SCIENCE AND TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Haoyu Li et al.
Summary: This study investigated the use of CaCl2 as a chlorine source for the sustainable recovery of gold from gold-bearing tailings via chlorination heat treatment, demonstrating its superior chlorine supply capacity. Understanding the mechanism of gold recovery and chlorine removal at different temperatures, the research indicated that roasting tailings with 5 wt% CaCl2 at 1273 K yielded the best results, with an 85.99 wt% gold recovery and 82.84 wt% chlorine removal. Overall, this research contributes to the industrialization of secondary resources through clean treatment processes.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Chemical
Hong Qin et al.
Summary: A novel method was proposed to recover gold from sulfide refractory gold ore, involving two-stage roasting, thiourea leaching and enhanced chlorination roasting; Gold extraction efficiency reached 98.06% in this process, demonstrating effective recovery from the challenging ore.
MINERALS ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Pengfei Liu et al.
Summary: Cyanide leaching is commonly used to extract gold from refractory gold ores, resulting in hazardous cyanide tailings which are further processed through chlorination roasting to recover valuable metals, forming high concentration Fe residues. Carbothermic reduction generates magnetic Fe3O4 or metallic Fe from chlorination residues, with subsequent magnetic separation producing high-quality Fe concentrate.
JOURNAL OF SUSTAINABLE METALLURGY
(2021)
Review
Materials Science, Multidisciplinary
Angelica Alvillo-Rivera et al.
Summary: The article discusses the waste treatment issues faced by mining activities in Mexico and proposes both traditional and non-traditional waste treatment strategies, with a focus on the feasibility of using microorganisms to treat high-cyanide waste.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Review
Green & Sustainable Science & Technology
Kaiwei Dong et al.
Summary: Cyanide tailings are hazardous solid wastes generated from the gold mining industry, containing toxic cyanides and valuable elements. Efforts have been made to develop detoxification and utilization technologies, with thermal treatment and autoclaved hydrolysis showing promise for cyanide removal. Recovery of valuable elements from cyanide tailings faces challenges but can bring economic and environmental benefits.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Chemical
Ergin Gulcan
MINERALS ENGINEERING
(2020)
Article
Engineering, Chemical
Hong Qin et al.
SEPARATION AND PURIFICATION TECHNOLOGY
(2020)
Article
Green & Sustainable Science & Technology
Xueyi Guo et al.
JOURNAL OF CLEANER PRODUCTION
(2020)
Review
Engineering, Chemical
Zhenxing Xing et al.
MINERALS ENGINEERING
(2020)
Article
Engineering, Chemical
Wei-wei Wang et al.
MINERALS ENGINEERING
(2020)
Article
Engineering, Chemical
Pelin Altinkaya et al.
MINERALS ENGINEERING
(2020)
Review
Environmental Sciences
Elham Aghaei et al.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2019)
Article
Materials Science, Multidisciplinary
Cong Xu et al.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2017)
Article
Materials Science, Multidisciplinary
Zheng-Yao Li et al.
