Hydrophobic agglomeration of different types of collectors in the separation of fine tenorite from quartz

IF 4.9 2区工程技术 Q1 ENGINEERING, CHEMICAL

Minerals Engineering Pub Date : 2025-06-21 DOI:10.1016/j.mineng.2025.109539

Qiurong Long , Qiang He , Weiyong Cui , Yangge Zhu

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引用次数: 0

Abstract

Sodium dodecyl sulfate (SDS), sodium oleate (NaOL), sodium octyl hydroxamate (OHA), heptyl triazine thione (HpNT) and hexyl tetrathione (HTT) − characterized by different hydrophobic groups and polar functional groups − were investigated for their effects on hydrophobic aggregation during the separation of fine tenorite from quartz. The findings showed that the hydrophobicity of the tenorite surface was significantly enhanced after treatment with these collectors. This observation was subsequently validated through flotation experiments, which revealed that these collectors exhibited favorable selectivity in the separation of fine tenorite from quartz, and the tenorite recovery ranked as followed: NaOL > SDS > HpNT > OHA > HTT. Zeta potential studies showed that the negative potential value of tenorite surfaces treatment with NaOL and SDS was higher than those treatment with the other three collectors. Furthermore, the results obtained by focused beam reflectance measurement (FBRM) confirmed that the agglomeration behavior of fine tenorite was influenced not only by hydrophobic groups but also by polar head groups. Notably, SDS and NaOL facilitated more efficient hydrophobic aggregation of tenorite, thereby increasing the apparent particle size of tenorite.

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不同类型捕收剂在细粒橄榄石与石英分离中的疏水团聚

研究了十二烷基硫酸钠（SDS）、油酸钠（NaOL）、辛烷基羟酸钠（OHA）、庚基三嗪硫酮（HpNT）和己基四硫酮(HTT) -具有不同疏水基团和极性官能团特征-在细粒钛矿与石英分离过程中对疏水聚集的影响。结果表明，经这些捕收剂处理后，钛酸盐表面的疏水性显著增强。随后通过浮选实验验证了这一观察结果，结果表明，这些捕收剂对细粒橄榄石与石英的分离具有良好的选择性，橄榄石的回收率依次为：NaOL >；SDS祝辞HpNT祝辞OHA祝辞计画。Zeta电位研究表明，NaOL和SDS处理的表面负电位值高于其他3种捕收剂处理的表面负电位值。此外，通过聚焦束反射测量（FBRM）得到的结果证实，细粒尖晶石的团聚行为不仅受到疏水性基团的影响，还受到极性头基团的影响。值得注意的是，SDS和NaOL促进了更有效的tenorite疏水聚集，从而增加了tenorite的表观粒径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.