通常,硫化矿物中所含金银品位极低,因而一般情况下,金、银在浮选过程中均不作为分选对象,硫化矿物中的金银,多数场合在选矿厂进入优先浮选的铜、铅锌等精矿之中,作为冶炼过程副产物对金属金及金属银加以回收。而未能进入铜、铅、锌精矿的金银的大部份,在其后的浮选作业中,混入硫精矿,因此,也就失去了多数的金属金及金属银回收的机会。 Usually, the sulfide minerals contain extremely low grade of gold and silver. Therefore, in general, gold and silver are not used as the sorting objects in the flotation process. Gold and silver in the sulfide minerals are mostly preferentially flotated in the concentrator Copper, lead and zinc concentrate, as a by-product of the smelting process of metal gold and metal silver to be recycled. Most of the gold and silver that failed to enter the copper, lead and zinc concentrates were mixed with sulfur concentrates during the subsequent flotation operations, thus losing most of the gold metal and silver metal recycling opportunities.