Experimental Study on Neutralization,Impurity Removal,and Cobalt Recovery of Cobalt Containing Raffinate
The experiment uses the copper raffinate from a certain copper cobalt ore recovery process as raw material,and adopts the neutralization impurity removal-cobalt precipitation process to recover cobalt hydroxide products.The results show that from the optimal conditions for neutralization and impurity removal,the reaction temperature is 80℃,the endpoint pH is 5.0～5.5,the air flow rate is 400 L/min,the stirring speed is 2 200 r/min,and the reaction time is 4 h.Under optimal conditions,the precipitation rates of Al,Fe,and Mn are 98.66%,98.81%,and 8.53%,respectively,while the precipitation rate of Co is only 0.21%.Subsequently,MgO cobalt precipitation is carried out on the impurity removal solution,and the Co precipitation rate exceeds 99%,during the cobalt precipitation process,maintaining an inert atmosphere has a significant inhibitory effect on Mn precipitation.
国家科技期刊平台
NSTL
万方数据
