Application of coal-based synthetic oil and its emulsion in coal slime flotation
Wang Jianbo
Cheng Zhihong
Gong Jiabao
Shen Liang
Abstract：Diesel oil in common use as a collecting agent in flotation process is a kind of nonrenewable hazardous chemical product.Therefore,seeking a new-type collecting agent for replacing diesel oil is of great significance for effecting green flotation process.For exploring the feasibility of using coal-based syn-thetic oil as a collector in slime flotation,three intermediates material produced using Fischer-Tropsch process by Lu'an Coal-based Oil Company are selected for use as collecting agents,and through emulsifica-tion at different oil-water ratios using Span 80 and Polysorbate 80,an optimum 3# oil sample is prepared.Based on stability and microscopic analysis of emulsified collectors,the effect that can be obtained in flota-tion process with the emulsified agents are investigated through flotation test and FTIR analysis.Study re-sults shows that among the crude oil collectors,the 3# oil is the best in effect with the yield of flotation con-centrate product being only 1 percentage point lower than the case of using diesel oil;among the Span se-ries and Tween series emulsified collectors prepared with 3# oil,the latter series exhibits a best stability and can stay unstratified within one month;and among the Tween series,the use of collector emulsified at an oil/water ratio of 4:6 can lead to a best flotation results with reduced consumption of the agent.
Keywords：flotation of coal slimecoal-based synthetic oilemulsification of agentFTIR analysise-mulsified collectoroil/water ratio
Publication Date：2023-08-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 8-14 )