中文摘要：

某复杂多金属矿含有金、银、铜、铅、锌等可供回收的金属元素,主要研究了采用浮选法回收多金属矿中的金和银。原矿含金2.40 g/t,银150.00 g/t,在磨矿细度-0.074 mm占85%及适宜的药剂条件下,针对该矿石的特殊性,试验采用强化分散矿泥,强化浮选等技术措施。在一次快速浮选、一次粗选、二次精选、二次扫选的工艺流程,获得了综合混合精矿中金的品位为27.15 g/t,回收率为50.19%,银的品位为2181.66 g/t,回收率为60.42%的浮选指标。

英文摘要：

The complex multi-metal ores contain many valuable metallic elements like gold, silver, copper, lead and zinc. The paper mainly focuses on gold and silver recovery by the flotation. The gold and silver content in raw ores is 2.40 g/t and 150.00 g/t respectively. Under the condition of grinding to85 % -0. 074mm and a suitable reagent, and in view of the ore＇s property, some technical measures as strengthening disperse sludge and floatation are adopted in tests. A good concentrate with gold grade of 27.15g/t at a 50.19% recovery and silver grade of 2181.66 g/t at an 60.42% recovery can be obtained from the process of one celerity flotation, one rough, two cleaning and two scavenging separation.