Experiment on Floatation of Spodumene by Combined Anion and Cation Collector
The rapid development of the new energy industry has led to a surge in lithium demand,and the development of low-grade spodumene has become crucial.In this study,low-grade spodumene ore in western Sichuan was used as the object of flotation test,and three kinds of fatty alcohol polyoxyethylene ether carboxylic acid were used to improve the flotation performance of cotton oil soap.The results showed that the XJ-AH collector mixed with IEC-1008H and cotton oil soap had the best effect.The anionic collector XJ-AH was combined with different amines to flotation low-grade spodumene.The test showed that the flotation effect of different amines was different.The flotation effect of the anionic collector XJ-AH was poor when it was combined with dodecylamine,and the flotation effect of the anionic collector XJ-AH was good for improving the recovery rate when it was combined with coconut oil diamine.Effectively improve the grade of spodumene.Under the condition of grinding finity of-0.074mm 87.6%,the dosage of sodium carbonate,sodium hydroxide and calcium chloride were 800g/t,700g/t and 60g/t,respectively,the dosage of anionic collector XJ-AH and oleic acid diethanolamide as combined collector was 1400g/t and 75g/t,respectively.The grade of the coarse concentrate reached 2.53%and the recovery rate was 76.32%.