Thiosalts in mining and metals processing

采矿和金属加工中的硫盐

• 批准号: 364079-2007
• 负责人: Hawboldt, KellyAnne
• 金额: $ 3.9万
• 依托单位: Memorial University of Newfoundland
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=460661
• 关键词: Thiosalts; mining; metals; processing

Thiosalts are sulphur oxides produced in the processing of sulphide ores. During the milling, grinding, and floatation of the ore or in the hydrometallurgical processing of the mineral to recover metals, partial oxidation occurs forming thiosalts. Thiosalts can pass through traditional effluent treatment systems relatively unaffected and oxidize to sulphuric acid in receiving ponds or other water bodies. Studies indicate that thiosalts themselves are not toxic but, rather, the pH depression in the water bodies is their negative impact on the environment. It is, therefore, important to accurately determine the behaviour of thiosalts in the receiving water body.

硫代盐是在硫化物矿石加工过程中产生的硫氧化物。在矿石的碾磨、研磨和浮选过程中，或在矿物的湿法冶金加工以回收金属的过程中，发生部分氧化形成硫代盐。硫代盐可以通过传统的污水处理系统，相对不受影响，并在接收池或其他水体中氧化为硫酸。研究表明，硫代盐本身没有毒性，但水体中的pH值下降是其对环境的负面影响。因此，重要的是准确地确定硫代盐在接收水体中的行为。