Experimental Study on Microwave Pretreatment with some Refractory Flotation Gold Concentrate
The microwave pretreatment of a typically refractory flotation gold concentrate was investigated. The results demonstrated that a maximum gold recovery of 97% was achieved, and that gold recoveries of the refractory gold concentrate quickly increased to the maximum with microwave heating time. Adding additives during microwave heating process was helpful to improve the leaching rate of gold, and the effect of microwave heating with single NaOH on the leaching rate of gold is not better than that of NaOH combined with other additives.
Xianjun Lu and Jun Qiu
X. J. Su et al., "Experimental Study on Microwave Pretreatment with some Refractory Flotation Gold Concentrate", Advanced Materials Research, Vol. 158, pp. 71-75, 2011