油酸钠体系中Ca2+对不同pH值下高岭石和石英浮选的影响研究

doi:10.11799/ce202004028

Abstract

Abstract: Abstract:In order to separate kaolinite and quartz, the effect of calcium ion on flotation of kaolinite and quartz at different pH values in sodium oleate (NaOL) system was investigated according to the test results of Zeta potential and adsorption quantity.The results show that Kaolinite has good flotation characteristics in pH range of 6~8,and the recovery rate is above 70.00% ;quartz has good flotation characteristics at pH of 12, and the recovery rate reaches 70.43%.In 0.8mmol/L sodium oleate with 1.0mmol/L Ca2+ system, A 1:1 ratio of artificially mixed minerals can be separated by flotation at pH of 6 and 12,The concentrate yields were 47.83% and 47.83%, respectively, and the grades were 73.23% and 17.45%, respectively.Zeta potential and adsorption quantity show that in the sodium oleate system,Ca2+ has little effect on the floatability of kaolinite,and inhibits the floatability of quartz in the acid andneutral condition,and promotes its adsorption in strong alkaline conditions .

CLC Number:

TD943

References 21

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Effect of Ca2+ on the Flotation of Kaolinite and Guartz at Different pH Values in the Presence of Sodium Oleate

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