A selective flotation of cassiterite with a dithiocarbamate-hydroxamate molecule and its adsorption mechanism

被引：51

作者：

Qi, Jing ^{[1
]}

Dong, Yan ^{[1
]}

Liu, Sheng ^{[1
]}

Liu, Guangyi ^{[1
]}

机构：

[1] Cent South Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2021年 / 538卷

基金：

中国国家自然科学基金;

关键词：

Cassiterite; Hydroxamic acid; Dithiocarbamate; Flotation; In situ AFM; FE III IONS; HYDROPHOBIC MECHANISM; BENZOHYDROXAMIC ACID; ACTIVATION MECHANISM; CONTACT-ANGLE; SODIUM OLEATE; LEAD IONS; PERFORMANCE; COLLECTOR; SURFACE;

D O I：

10.1016/j.apsusc.2020.147996

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

N-[(3-hydroxyamino)-propoxy]-N-octyl dithiocarbamate (OAHD) was designed as cassiterite flotation collector. AFM clearly showed that OAHD assembled on cassiterite surfaces to generate innumerable nano-aggregates. The FTIR and XPS recommended that the adsorption of OAHD was related to forming the [GRAPHICS] and [GRAPHICS] configurations in the surface OAHD-Sn(IV) complexes, which improved the hydrophobicity, decreased the surface energy and hydrophilicity index, and realized an effective flotation enrichment of cassiterite particles. In addition, the dithiocarbamate group might act as a hydrophilic group for calcite flotation, while as a chelating group for cassiterite flotation, which rendered OAHD to return the lower flotation recovery of calcite than octyl hydroxamic acid, and the excellent collecting properties towards cassiterite.

引用

页数：9

共 62 条

[1] Synthesis and characterization of two new hydroxamic acids derivatives and their metal complexes. An investigation on the keto/enol, E/Z and hydroxamate/hydroxirnate forms [J].

Adiguzel, Ekrem ;

Yilmaz, Fatih ;

Emirik, Mustafa ;

Ozil, Musa .

JOURNAL OF MOLECULAR STRUCTURE, 2017, 1127 :403-412

[2] One-pot approach to modify nanostructured gold surfaces through in situ dithiocarbamate linkages [J].

Almeida, I. ;

Ferreira, V. C. ;

Montemor, M. F. ;

Abrantes, L. M. ;

Viana, A. S. .

ELECTROCHIMICA ACTA, 2012, 83 :311-320

[3] A review of cassiterite beneficiation fundamentals and plant practices [J].

Angadi, S. I. ;

Sreenivas, T. ;

Jeon, Ho-Seok ;

Baek, Sang-Ho ;

Mishra, B. K. .

MINERALS ENGINEERING, 2015, 70 :178-200

[4] Anion-assisted self-assembly of chlorodiorganotin(IV) dithiocarbamate derived from naphthylimide [J].

Angel Claudio-Catalan, Miguel ;

Medrano, Felipe ;

Isabel Rivera-Marquez, Karla ;

Alejandra Rodriguez-Uribe, Nadia ;

Perez-Gonzalez, Refugio ;

Tlahuext, Hugo ;

Godoy-Alcantar, Carolina .

POLYHEDRON, 2018, 146 :55-64

[5] Spectral characterization and crystal structure of 2-amino-N′-[(1Z)-1-(4-chlorophenyl)ethylidene]-benzohydrazide [J].

Arfan, Mohammad ;

Khan, Rasool ;

Tavman, Aydin ;

Saba, Sumbal .

JOURNAL OF SAUDI CHEMICAL SOCIETY, 2016, 20 (01) :40-44

[6] N-(6-(hydroxyamino)-6-oxohexyl) decanamide collector: Flotation performance and adsorption mechanism to diaspore [J].

Deng, Lanqing ;

Wang, Shuai ;

Zhong, Hong ;

Liu, Guangyi .

APPLIED SURFACE SCIENCE, 2015, 347 :79-87

[7] Copper zinc tin sulfide layers prepared from solution processable metal dithiocarbamate precursors [J].

Edler, Michael ;

Rath, Thomas ;

Schenk, Alexander ;

Fischereder, Achim ;

Haas, Wernfried ;

Edler, Matthias ;

Chernev, Boril ;

Kunert, Birgit ;

Hofer, Ferdinand ;

Resel, Roland ;

Trimmel, Gregor .

MATERIALS CHEMISTRY AND PHYSICS, 2012, 136 (2-3) :582-588

[8] Effect of calcium ions on adsorption of sodium oleate onto cassiterite and quartz surfaces and implications for their flotation separation [J].

Feng, Qicheng ;

Wen, Shuming ;

Zhao, Wenjuan ;

Chen, Yu .

SEPARATION AND PURIFICATION TECHNOLOGY, 2018, 200 :300-306

[9] Activation mechanism of lead ions in cassiterite flotation with salicylhydroxamic acid as collector [J].

Feng, Qicheng ;

Zhao, Wenjuan ;

Wen, Shuming ;

Cao, Qinbo .

SEPARATION AND PURIFICATION TECHNOLOGY, 2017, 178 :193-199

[10] Theoretical modeling of the OH stretch infrared spectrum of carboxylic acid dimers based on first-principles anharmonic couplings [J].

Florio, GM ;

Zwier, TS ;

Myshakin, EM ;

Jordan, KD ;

Sibert, EL .

JOURNAL OF CHEMICAL PHYSICS, 2003, 118 (04) :1735-1746

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