Effect of a novel phosphate on the flotation of serpentine-containing copper-nickel sulfide ore

被引：29

作者：

Zhao, Kaile ^{[1
,2
]}

Yan, Wu ^{[1
]}

Wang, Xiaohui ^{[1
]}

Wang, Zhen ^{[3
]}

Gao, Zhiyong ^{[2
]}

Wang, Chongqing ^{[4
]}

He, Wei ^{[5
]}

机构：

[1] Chinese Acad Geol Sci, Inst Multipurpose Utilizat Mineral Resources, Chengdu 610041, Sichuan, Peoples R China

[2] Cent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Hunan, Peoples R China

[3] Southwest Univ Sci & Technol, Sch Environm & Resource, Mianyang 621010, Sichuan, Peoples R China

[4] Zhengzhou Univ, Sch Chem Engn & Energy, Zhengzhou 450001, Henan, Peoples R China

[5] Hunan Nonferrous Met Vocat & Tech Coll, Dept Resources & Environm, Zhuzhou 412006, Hunan, Peoples R China

来源：

MINERALS ENGINEERING | 2020年 / 150卷

关键词：

Copper-nickel sulfide; Serpentine; MgO control; Sodium phytate; Flotation; SLIME COATINGS; PENTLANDITE; SEPARATION; BEHAVIOR; SCHEELITE;

D O I：

10.1016/j.mineng.2020.106276

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In the flotation process of serpentine-containing copper-nickel sulfide ore, serpentine slime coatings significantly reduced the flotation performance of copper-nickel sulfide. Sodium phytate is a highly effective dispersant for MgO control in the flotation of copper-nickel ore. Compared with traditional dispersant sodium hexametaphosphate, grade and recovery improved from 6.86% Ni at 69.01% recovery to 8.03% Ni at 71.44% recovery and the MgO content decreased from 9.07% to 5.78% by using dispersant sodium phytate at a smaller dosage. Numerous P-O functional groups in sodium phytate molecule could effectively disperse pentlandite/serpentine. The chemical adsorption occurred between P-O groups in phytate molecule and Mg2+ ions on serpentine surface.

引用

页数：6

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