油酸钠与胲铵类药剂协同浮选金红石的机理

doi:10.16085/j.issn.1000-6613.2019-1654

化工进展 ›› 2020, Vol. 39 ›› Issue (8): 3362-3370.DOI: 10.16085/j.issn.1000-6613.2019-1654

油酸钠与胲铵类药剂协同浮选金红石的机理

刘明宝¹^,²(), 郭万中³, 印万忠³

^1.商洛学院化学工程与现代材料学院，陕西商洛 726000
^2.陕西省尾矿资源综合利用重点实验室, 陕西商洛 726000
^3.东北大学资源与土木工程学院，辽宁沈阳 110004

出版日期:2020-08-01 发布日期:2020-08-12
通讯作者: 刘明宝
作者简介:刘明宝（1982—），男，博士，副教授，研究方向为矿物加工工程专业。E-mail: lmb74@163.com。
基金资助:
国家自然科学基金面上项目(21973058)

Flotation mechanism of rutile in synergistic systems composed by sodium oleate and hydroxylamine-type reagents

Mingbao LIU¹^,²(), Wanzhong GUO³, Wanzhong YIN³

^1.College of Chemical Engineering and Modern Material, Shangluo University, Shangluo 726000, Shaanxi, China
^2.Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo 726000, Shaanxi, China
^3.College of Resources and Civil Engineering, Northeasten University Resources and Civil Engineering College, Shenyang 110004, Liaoning, China

Online:2020-08-01 Published:2020-08-12
Contact: Mingbao LIU

摘要/Abstract

摘要：

采用单矿物浮选试验研究了金红石在油酸钠和胲铵类药剂组合体系中的浮选行为，利用zeta电位、表面张力、接触角、紫外光谱等手段从界面化学角度详细研究了组合药剂在液液、液固界面的作用机制。结果表明：单一药剂对金红石捕收能力的大小顺序为：油酸钠(SO，51.55%)＞N-亚硝基萘胲铵(CF，18.72%)＞N-亚硝基苯胲铵(NF，14.01%)。组合药剂添加顺序对金红石回收率的影响大小为：先添加N-亚硝基苯胲铵后油酸钠＞先添加油酸钠后N-亚硝基苯胲铵＞油酸钠和N-亚硝基苯胲铵预混后再添加＞油酸钠和N-亚硝基萘胲铵预混后再添加＞先添加油酸钠后N-亚硝基萘胲铵＞先添加N-亚硝基萘胲铵后油酸钠，该顺序与药剂之间的协同效应指数有较好的一致性。油酸钠分子中的双键与胲铵类分子中的苯环和萘环之间存在电子共轭效应，该效应对组合药剂的吸附特性及缔合行为有较大影响，药剂之间所生成缔合物的数量及空间构象是影响金红石浮选行为的主要原因。

关键词: 浮选, 协同, 电泳, 界面张力, 金红石

Abstract:

Flotation response of rutile in combined reagent systems composed by sodium oleate(SO) and hydroxylamine-type reagents was studied using pure mineral flotation test. Several techniques, namely zeta potential, contact angle, surface tension and UV spectroscope, were exploited to investigate the interaction mechanisms of the reagent combination at gas-liquid and solid-liquid interface in terms of interface chemistry properties. The results indicated that the collecting ability of the three reagents followed the order: sodium oleate (SO, 51.55%)＞cupferron (CF, 18.72%)＞neocupferron (NF, 14.01%)。The magnitude of effect of reagent adding order on rutile recovery was adding CF prior to SO＞adding SO prior to CF＞premixing SO and CF before adding＞ premixing SO and NF before adding＞adding SO prior to NF＞adding NF prior to SO, which was coincidence with the sequence of the synergism indexes. The electron conjugation effect, existing between the double bond in sodium oleate and the benzene ring or naphthalene ring bearing in hydroxylamine-type reagents, had a great impact on the adsorption and the association properties of the reagents. The amount and the configuration of complex formed by reagents play a leading role in rutile flotation behaviors.

Key words: flotation, synergism, electrophoresis, interfacial tension, rutile

中图分类号:

TD91

刘明宝, 郭万中, 印万忠. 油酸钠与胲铵类药剂协同浮选金红石的机理[J]. 化工进展, 2020, 39(8): 3362-3370.

Mingbao LIU, Wanzhong GUO, Wanzhong YIN. Flotation mechanism of rutile in synergistic systems composed by sodium oleate and hydroxylamine-type reagents[J]. Chemical Industry and Engineering Progress, 2020, 39(8): 3362-3370.

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油酸钠与胲铵类药剂协同浮选金红石的机理

Flotation mechanism of rutile in synergistic systems composed by sodium oleate and hydroxylamine-type reagents

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