Study on the Influence of Ultrasonic and Thermal Effects on the Floatability of Calcite in Sodium Silicate and Sodium Oleate System

LI Guang; SHI Jia; FANG Shenyu; ZHU Diwen; NIE Dapeng; CUI Rui

doi:10.13779/j.cnki.issn1001-0076.2021.06.016

2021 Vol. 41, No. 6

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Article navigation > Conservation and Utilization of Mineral Resources > 2021 > 41(6): 131-138

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LI Guang, SHI Jia, FANG Shenyu, ZHU Diwen, NIE Dapeng, CUI Rui. Study on the Influence of Ultrasonic and Thermal Effects on the Floatability of Calcite in Sodium Silicate and Sodium Oleate System[J]. Conservation and Utilization of Mineral Resources, 2021, 41(6): 131-138. doi: 10.13779/j.cnki.issn1001-0076.2021.06.016

Citation:

LI Guang, SHI Jia, FANG Shenyu, ZHU Diwen, NIE Dapeng, CUI Rui. Study on the Influence of Ultrasonic and Thermal Effects on the Floatability of Calcite in Sodium Silicate and Sodium Oleate System[J]. Conservation and Utilization of Mineral Resources, 2021, 41(6): 131-138. doi: 10.13779/j.cnki.issn1001-0076.2021.06.016

Study on the Influence of Ultrasonic and Thermal Effects on the Floatability of Calcite in Sodium Silicate and Sodium Oleate System

1.
College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
2.
Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan 430081, China

More Information

Corresponding author: CUI Rui, cuirui@wust.edu.cn

Received Date: 09 August 2021

Publish Date: 25 December 2021

Abstract

Abstract

In this paper, the effect of ultrasonic treatment on the floatability of suppressed calcite in sodium silicate and sodium oleate system was studied and the mechanism of ultrasonic treatment was explored. The test results show that the flotation recovery of calcite can be greatly increased from 7.5% to 82.1% under the conditions of ultrasonic cleaning machine power of 150 W, frequency of 40 kHz and ultrasonic treatment time of 20 min. Ultrasonic treatment can reduce the pH value of pulp and increase the overall temperature of pulp, but the range of change does not affect the floatability of calcite. Increasing the temperature of water medium in ultrasonic cleaning machine has a synergistic effect on improving the floatability of calcite. Under the conditions of 150 W power, 40 kHz frequency, 10 min ultrasonic time and 70 ℃ water medium temperature, the flotation recovery of calcite can reach 86.2%. Ultrasound can selectively weaken the inhibitory effect of sodium silicate on calcite, but does not affect the collection effect of sodium oleate on calcite. Ultrasonic treatment can promote the dissolution of sodium silicate adsorbed on calcite surface, but has little effect on sodium oleate adsorbed on calcite surface.
- ultrasonic /
- calcite /
- flotation /
- sodium silicate /
- sodium oleate

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References

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