Study on a Sink and Float Test of a Lead-Zinc Ore from Yunnan

Abstract:

The paper analyses problems of a lead-zinc ore from Yunnan with a sink and float test. In the paper, we explored the possibility of pre-discarding about the ore by dense-media process. Dense liquids with the specific gravity of 2.6, 2.7 and 2.8 were used in the test, respectively. -12mm crudes were taken into the test. Finally, it revealed that pre-discarding by dense-media separation can be used in the ore. 2.7 was taken as the best specific gravity of separation. 12~1mm was used as the optimal fraction of pre-discarding by dense-media separation. Pre-discarding rate was 45.53%. The light product with a lead grade of 0.29% and a lead recovery of 4.29% was pre-discarded in which the grade and recovery of zinc were 0.22 and 5.84, respectively.

• Periodical: Advanced Materials Research (Volumes 1073-1076)
• Pages: 2149-2152
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1073-1076.2149
• Online since: December 2014
• Authors: Wen Juan Zhao*, Sheng Jian
• Keywords: Dense-Media, Lead-Zinc Ore, Sink and Float Test

References

[1] Rashchi, F., Sui, C., Finch, J.A.: Sphalerite activation and surface Pb ion concentration [J]. International Journal of Mineral Processing. Vol. 67(2002), p.43–58.

DOI: 10.1016/s0301-7516(02)00005-4

[2] Fleming, M.G.: Effects of alkalinity on the flotation of lead minerals [J]. Transaction AIME. Vol. 193(1952), p.1231–1236.

[3] Fuerstenau, M.C., Miller, J.D., Kuhn, M.C.: Chemistry of Flotation [M]. American Institute of Mining, Metallurgical and Petro-leum Engineers, Inc., New York, (1985), p.132.