镍黄铁矿与蛇纹石浮选分离中有机抑制剂的机理研究进展

孔令宇; 吕晋芳; 魏民; 郑永兴

doi:10.13779/j.cnki.issn1001-0076.2022.02.004

镍黄铁矿与蛇纹石浮选分离中有机抑制剂的机理研究进展

1.
昆明理工大学国土资源工程学院，云南昆明 650093

2.
省部共建复杂有色金属资源清洁利用国家重点实验室，云南昆明 650093

基金项目:
国家自然科学基金面上项目(52074139)；云南省基础研究专项(202001AU070028)；云南省基础研究计划项目昆明理工大学"双一流"创建联合专项(202101BE070001-036、202202AG050010)

详细信息

作者简介: 孔令宇(1996-)，男，云南昆明人，硕士研究生，研究方向为浮选理论与工艺；E-mail：2625798482@qq.com

通讯作者: 吕晋芳(1985-)，女，山西太原人，博士，硕士生导师，研究方向为资源与环境；E-mail：jflv2017@126.com

中图分类号: TD923⁺.14;TD954

收稿日期: 2022-03-02

刊出日期: 2022-04-25

Research Progress of Mechanism on Organic Depressants for the Flotation Separation of Pentlandite and Serpentine

1.
Kunming University of Science and Technology, Land Resources Engineering, Kunming 650093, Yunnan, China

2.
State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming 650093, Yunnan, China

More Information

Corresponding author: LYN Jinfang, jflv2017@126.com

Received Date: 02 March 2022

Publish Date: 25 April 2022

摘要

摘要:
蛇纹石是一种富含镁的硅酸盐矿物，常与镍黄铁矿共伴生。在镍黄铁矿浮选过程中，蛇纹石的上浮会造成镍精矿中镁含量超标，从而影响镍黄铁矿的冶炼。介绍了蛇纹石的晶体结构和表面性质，剖析了蛇纹石难以抑制的原因，阐明了常用有机抑制剂羧甲基纤维素、淀粉类、壳聚糖、瓜尔胶及组合药剂对蛇纹石的抑制机理。
- 镍黄铁矿 /
- 蛇纹石 /
- 浮选分离 /
- 有机抑制剂 /
- 抑制机理
Abstract:
Serpentine is a silicate mineral that contains large amounts of magnesium, and it often coexists with pentlandite. During the flotation process of pentlandite, the floating serpentine will cause the magnesium content in nickel concentrate to exceed the standard, leading to pentlandite smelting difficulty. In the paper, the crystal structure and surface property of serpentine were introduced, and the reason that serpentine was difficult to be depressed in the flotation was analyzed. In addition, the depressing mechanism of common organic reagents, such as carboxymethyl fiber, starch, chitosan, guar gum, and combination reagents of serpentine were summarized.
- pentlandite /
- serpentine /
- flotation separation /
- organic depressant /
- depressing mechanism

HTML全文

图 1 蛇纹石晶体结构

Figure 1.

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图 2 羧甲基纤维素的结构

Figure 2.

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图 3 CMC氢键作用机理

Figure 3.

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图 4 CMC静电作用机理

Figure 4.

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图 5 淀粉的结构

Figure 5.

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图 6 淀粉静电作用机理

Figure 6.

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图 7 淀粉氢键作用机理

Figure 7.

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图 8 壳聚糖的结构

Figure 8.

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图 9 壳聚糖氢键作用机理

Figure 9.

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图 10 壳聚糖络合作用机理

Figure 10.

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图 11 瓜尔胶的结构

Figure 11.

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