Enhancing froth flotation performance of iron oxide apatite ore tailings through synergistic utilization of organosolv lignin particles and tall oil fatty acid-based collector

IF 4.9 2区工程技术 Q1 ENGINEERING, CHEMICAL

Minerals Engineering Pub Date : 2024-08-08 DOI:10.1016/j.mineng.2024.108868

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Abstract

Beneficiation of the tailings from Iron Oxide Apatite (IOA) ore has become an important topic in the field of mineral processing as phosphate rock is considered as critical raw material by the European Union. Driven by the strong call for sustainability and green technology, this paper introduces the application of novel and bio-based organosolv lignin particles (OLP) as a reagent for apatite flotation. In the artificial mineral mixture flotation tests, OLP addition or replacement to tall oil fatty acid-based collector (TOFA) was shown to improve flotation kinetics and recovery. In this study, it was demonstrated that one of the widely used commercial TOFA collectors could be replaced with OLP by 70 %. The replacement led to an increase in recovery (+2%) and only a minimal decrease in P grade (−0.3 %) for the rougher-cleaner flotation tests in one of the two feed types tested. The influence of OLP and other reagents on apatite floatability has been investigated through Hallimond tube tests and laboratory scale batch flotation tests as well as zeta potential measurements and spectroscopy tests to further understand the possible mechanism and synergism of reagents in the apatite flotation system.

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通过协同利用有机溶胶木质素颗粒和妥尔油脂肪酸基捕收剂，提高氧化铁磷灰石尾矿的泡沫浮选性能

氧化铁磷灰石（IOA）矿的尾矿选矿已成为矿物加工领域的一个重要课题，因为磷矿石被欧盟视为重要的原材料。在可持续发展和绿色技术的强烈呼吁下，本文介绍了新型生物有机溶胶木质素颗粒（OLP）作为磷灰石浮选试剂的应用。在人工矿物混合物浮选试验中，OLP 添加或替代妥尔油脂肪酸基捕收剂（TOFA）可改善浮选动力学和回收率。这项研究表明，OLP 可替代一种广泛使用的商用 TOFA 捕收剂 70%。在对两种给矿类型中的一种进行的粗选-精选浮选试验中，这种替代可提高回收率（+2%），而 P 级的下降幅度很小（-0.3%）。通过哈里蒙德管试验和实验室规模的批量浮选试验以及zeta电位测量和光谱试验，研究了OLP和其他试剂对磷灰石可浮性的影响，以进一步了解试剂在磷灰石浮选系统中的可能机制和协同作用。

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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.

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