The effect of amino trimethylene phosphonic acid on the flotation separation of pentlandite from lizardite

被引：102

作者：

Liu, Cheng ^{[1
]}

Ai, Guanghua ^{[2
]}

Song, Shaoxian ^{[1
,3
]}

机构：

[1] Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Hubei, Peoples R China

[2] Jiangxi Univ Sci & Technol, Fac Resource & Environm Engn, Ganzhou 341000, Jiangxi, Peoples R China

[3] Wuhan Univ Technol, Hubei Key Lab Mineral Resources Proc & Environm, Wuhan 430070, Hubei, Peoples R China

来源：

POWDER TECHNOLOGY | 2018年 / 336卷

基金：

中国国家自然科学基金;

关键词：

Lizardite; Pentlandite; ATMP; Flotation separation; SODIUM HEXAMETAPHOSPHATE; GANGUE MINERALS; SERPENTINE; MECHANISMS; PRECIPITATION; PYRITE;

D O I：

10.1016/j.powtec.2018.06.030

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

To reduce the negative effects of lizardite on the flotation of pentlandite, amino trimethylene phosphonic acid (ATMP) was tested as a potential depressant for lizardite. Micro-flotation test results indicated that the flotability of pentlandite restored in pentlandite-lizardite system by the addition of ATMP. The adsorption and ICP results indicated that ATMP interacted with the Mg species of lizardite surface meanwhile a part of the Mg ions were dissolved from lizardite surface. XPS tests illustrated that ATMP changed the surface characteristics of lizardite mineral and the Mg/Si atomic ratio decreased on lizardite surface. Zeta potential measurements demonstrated that the lizardite zeta potential was changed from positive to negative after interacting with ATMP, which caused the electro-steric repulsion between pentlandite and lizardite particles, and thus the pentlandite floatability was restored. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：527 / 532

页数：6

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