磨矿介质和化学条件对某混合硫化矿浮选的影响

IF 5 2区工程技术 Q1 ENGINEERING, CHEMICAL

Minerals Engineering Pub Date : 2025-05-07 DOI:10.1016/j.mineng.2025.109369

Sancho N. Nyoni, Cyril T. O’Connor, Kirsten C. Corin

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引用次数: 0

摘要

磨矿和浮选过程中的化学反应主要是由矿物、试剂、磨矿介质和水化学之间的相互作用驱动的。此外，由于这些相互作用，有价值的矿物可能变得更难以浮起来，特别是在多金属矿石在封闭水路中加工的情况下。本研究使用混合矿物-方铅矿（Gn）和黄铁矿(Py) -合成矿石样品来研究不同磨矿介质、磨矿ph值和工艺水离子强度对冶金性能的影响。在磨矿过程中，密切监测混合电位、DO和pH值。使用Gn和Py作为感兴趣的矿物可以使矿物中的铁（Fe）的影响与磨壳和含铁的磨矿介质产生的影响脱钩。

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The impact of milling media and chemical conditions in the milling process for the flotation of a mixed-sulfide ore

Chemical reactions during milling and flotation are mostly driven by interactions between minerals, reagents, milling media, and water chemistry. Furthermore, due to these interactions, the valuable minerals may become more difficult to float, especially in the case of polymetallic ore processing in closed-water circuits. This study uses a mixed mineral − galena (Gn) and pyrite (Py) − synthetic ore sample to investigate how metallurgical performance is affected using different milling media, pHs in the mill, and process water ionic strengths. Mixed potential, DO, and pH were closely monitored in situ during milling. Using Gn and Py as the minerals of interest allows the effect of iron (Fe) in the mineral to be decoupled from that arising from the mill shell and Fe-bearing milling media.

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来源期刊

Minerals Engineering 工程技术-工程：化工

CiteScore

8.70

自引率

18.80%

发文量

519

审稿时长

81 days

期刊介绍： The purpose of the journal is to provide for the rapid publication of topical papers featuring the latest developments in the allied fields of mineral processing and extractive metallurgy. Its wide ranging coverage of research and practical (operating) topics includes physical separation methods, such as comminution, flotation concentration and dewatering, chemical methods such as bio-, hydro-, and electro-metallurgy, analytical techniques, process control, simulation and instrumentation, and mineralogical aspects of processing. Environmental issues, particularly those pertaining to sustainable development, will also be strongly covered.