Flotation Separation of Quartz and Feldspar from a Tungsten Gravity Tailings

SUN Ning; LI Aimin; SUN Wei; WANG Li

doi:10.13779/j.cnki.issn1001-0076.2023.02.017

2023 Vol. 43, No. 2

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Article navigation > Conservation and Utilization of Mineral Resources > 2023 > 43(2): 112-116

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SUN Ning, LI Aimin, SUN Wei, WANG Li. Flotation Separation of Quartz and Feldspar from a Tungsten Gravity Tailings[J]. Conservation and Utilization of Mineral Resources, 2023, 43(2): 112-116. doi: 10.13779/j.cnki.issn1001-0076.2023.02.017

Citation:

SUN Ning, LI Aimin, SUN Wei, WANG Li. Flotation Separation of Quartz and Feldspar from a Tungsten Gravity Tailings[J]. Conservation and Utilization of Mineral Resources, 2023, 43(2): 112-116. doi: 10.13779/j.cnki.issn1001-0076.2023.02.017

Flotation Separation of Quartz and Feldspar from a Tungsten Gravity Tailings

1.
School of Mineral Processing and Bioengineering, Central South University, Changsha 410083, Hunan, China
2.
NinghuaXingluokeng Tungsten Mine Co. Ltd, Sanming 353000, Fujian, China
3.
Hunan Provincial Key Laboratory of Clean and Efficient Utilization of Strategic Calcium-bearing Mineral Resources, Changsha 410083, Hunan, China

More Information

Corresponding author: LI Aimin, lam6508@163.com

Received Date: 12 October 2022

Publish Date: 25 April 2023

Abstract

Abstract

The tungsten gravity tailings are rich in non-metallic mineral resources such as quartz (content: 52.69%), feldspar (content: 31.84%) and mica (content: 10.00%), with K₂O, Na₂O and SiO₂ contents of 5.22%, 1.45% and 75.41%, respectively. In order to fully and efficiently recover the feldspar and quartz resources from the tungsten gravity tailings, a experimental study of flotation separation was conducted. A fluoride-free and acid-free flotation method was used, and the mica was removed by pre-flotation with the combined anionic and cationic collectors TB−1 and TB−2, quartz and feldspar were further separated by flotation using TY−1 as depressant, TH−1 as activator and TB−1 as collector. As a result, the yield of feldspar products was 25.43%, of which the grades of K₂O, Na₂O, Al₂O₃, Fe₂O₃ were 10.51%, 3.11%, 17.02%, 0.14%, respectively, and the yield of quartz products was 27.74%, of which the grade of SiO₂, Fe₂O₃ was 98.51% and 0.09% respectively.
- tungsten gravity tailings /
- feldspar /
- quartz /
- flotation

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References

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