مطالعه و بررسي سينتيك سمنتاسيون مس

Investigation of Copper Cementation Kinetics by Full Factorial Design

Cementation is one of the processes employed for recovering Copper from leach liquors especially in small scale mines. The kinetics of cementation is important because of its effect on the capital and operating costs. In this research,the effect of agitation intensity. Cu-concentration, pH< iron surface and reaction time on the cementation kinetics of copper from Cheezeh ore leach liquors has been investigated. The experimental design method was carried out by using the 2k factorial approach. Experimental results showed that agitation intensity, Cu-concentration, pH and interaction between Cu-concentration and pH have the most significant effect on cementation kinetics. Optimum conditions were agitation intensity = 300 rpm, pH=l, Cu-concentration= 7 g/1 and iron surface= 31.2 cm2. The kinetic constant under these conditions was estimated as 7.66* 10-3 min-1.