硫脲作为浸出剂在哥伦比亚金矿小规模开采中的应用前景综述

IF 0.7 Q4 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
J. Borda, R. Torres
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引用次数: 2

摘要

摘要硫脲作为一种替代介质,由于其商业效益和性能、环境影响等方面的研究挑战,成为最有前途的金浸出剂之一。本文综述了硫脲与氰化物的使用条件、化学性质、局限性、毒性因素、环境和回收工艺。虽然由于试剂的不稳定性,硫脲金萃取工艺尚未大规模应用,但其克服氰化物限制的潜力对该工艺具有吸引力;通过pH、电位、氧化剂用量和温度控制,实现了金硫脲的溶解。这些可以通过活性炭吸附、聚氨酯泡沫等方法从浸出液中回收
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Prospects for thiourea as a leaching agent in Colombian gold small-scale mining: A comprehensive review
Abstract Thiourea, as an alternative medium, is one of the most promising leaching agents for gold recovery by its commercial benefits and research challenges associated with performance and environmental impacts. This review article describes the operational conditions for the use of Thiourea vs cyanide, its chemistry, limitations, toxicity factors, environment, and recovery processes. Although thiourea gold extraction processes have not been applied on a large scale due to the instability of the reagent, its potential to overcome the limitations of cyanide is attractive to the process; with pH, potential, oxidant dosage, and temperature control, solubilized gold thiourea species are achieved. These can be recovered from the pregnant leach solution through methods such as activated carbon absorption and adsorption, polyurethane foams
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来源期刊
Journal of Sustainable Mining
Journal of Sustainable Mining Earth and Planetary Sciences-Geology
CiteScore
1.50
自引率
10.00%
发文量
20
审稿时长
16 weeks
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