Leaching of copper and zinc from the tailings sample ...
21/12/2019· It is found that the highest leaching recovery of copper and zinc can be obtained nearly 74% for copper and 81% for zinc with a desirable value of 92% under optimum conditions of 10% acid concentration, 300 rpm agitation rate, 10 mL/g liquid/solid ratio, 35 °C temperature, and 75 min leaching time.