Comparative Study on Floatation of Low Rank Coal Slime by Compound Coal-based Fischer-tropsch Synthetic Oil and Traditional Hydrocarbon Oil

GUO Kai; ZHANG Guofu; ZHANG Guohua; GUO Zhou; LI Weichao; LIU Wengang

doi:10.13779/j.cnki.issn1001-0076.2023.06.011

2023 Vol. 43, No. 6

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Article navigation > Conservation and Utilization of Mineral Resources > 2023 > 43(6): 95-99

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GUO Kai, ZHANG Guofu, ZHANG Guohua, GUO Zhou, LI Weichao, LIU Wengang. Comparative Study on Floatation of Low Rank Coal Slime by Compound Coal-based Fischer-tropsch Synthetic Oil and Traditional Hydrocarbon Oil[J]. Conservation and Utilization of Mineral Resources, 2023, 43(6): 95-99. doi: 10.13779/j.cnki.issn1001-0076.2023.06.011

Citation:

GUO Kai, ZHANG Guofu, ZHANG Guohua, GUO Zhou, LI Weichao, LIU Wengang. Comparative Study on Floatation of Low Rank Coal Slime by Compound Coal-based Fischer-tropsch Synthetic Oil and Traditional Hydrocarbon Oil[J]. Conservation and Utilization of Mineral Resources, 2023, 43(6): 95-99. doi: 10.13779/j.cnki.issn1001-0076.2023.06.011

Comparative Study on Floatation of Low Rank Coal Slime by Compound Coal-based Fischer-tropsch Synthetic Oil and Traditional Hydrocarbon Oil

1.
Shanxi Lu'an Coal-based Clean Energy Co., Ltd, Chang Zhi 046200, Shanxi, China
2.
School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, Liaoning, China

More Information

Corresponding author: LIU Wengang, liuwengang@mail.neu.edu.cn

Received Date: 28 November 2023

Publish Date: 25 December 2023

Abstract

Abstract

In order to further expand the utilization of coal−based fischer−tropsch synthetic oil, develop green utilization technology with low energy consumption, low pollution, low emission and low cost, and empower carbon peaking and carbon neutralization in coal chemical industry, a new collector was prepared based on coal−based fischer−tropsch synthetic oil, and its application effect with traditional hydrocarbon oil in low−order slime flotation was investigated. The results showed that the blended coal−based fischer−tropsch synthetic oil could be used as collector for coal slime flotation, and under the condition of the same dosage, it could obtain better flotation index than traditional hydrocarbon oil collector. When the collector dosage was 50 g/t and kerosene was used as collector, the clean coal ash fraction was 9.01%, and the clean coal yield was 86.48%. When the coal−based fischer−tropsch synthetic oil JZC−1, LHC−1 and JCZC were mixed in a mass ratio of 1∶1∶1, the better flotation clean coal index could be obtained, at this time, the clean coal ash fraction was 8.96%, and the clean coal yield was 86.80%. Compared with traditional hydrocarbon oil, compound coal−based fischer−tropsch synthetic oil had longer carbon chain and some isoparaffins. By optimizing the length of alkane carbon chain and the number of branched chains in collector, its selectivity and collectivity were improved, so clean coal products with lower ash content and higher yield could be obtained under the same dosage.
- fischer−tropsch synthetic oil /
- compound /
- collector /
- low rank coal /
- flotation

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References

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