某铜钼钨矿石浮选分离试验研究

Flotation separation study of a copper-molybdenum-tungsten ore

对某含铜钼钨矿石进行了浮选分离工艺研究。试样为钨重选毛砂,除钨矿物外,还富含铜、钼等有价金属硫化矿物。采用铜钼混合浮选-铜钼分离的浮选工艺,综合回收试样中的钨、铜、钼。铜钼混合浮选时,采用高效活化剂BK546,有利于降低钨精矿的硫含量,并提高铜钼回收率。闭路试验获得钼精矿含钼57.90%、铜0.68%、钼回收率96.44%;铜精矿含铜37.32%、铜回收率99.64%;钨精矿含WO368.12%、铜0.025%、钼0.005%、钨回收率97.30%。实现了矿石中钨、铜、钼的有效分离回收。

In this paper, the flotation separation of a gross sand of gravity separation of tungsten richly containing Cu and Mo sulfide minerals obtained by jigging process was studied. According to the above sample＇s property, the process of bulk flotation of copper and molybdenum minerals, and then flotation separation of copper and molybdenum minerals was adopted. The effective activator BK546 was used to reduce the content of sulfur in tungsten concentrate and improve the recoveries of copper and molybdenum. The results of the closed circuit obtained a molybdenum concentrate with Mo grade of 57.90%, Cu grade of 0.68% and molybdenum recovery rate of 96. 44%; a copper concentrate with Cu grade of 37. 32% and copper recovery rate of 99.64% ; a tungsten concentrate with WO3 grade of 68.12%, Cu grade of 0. 025%, Mo grade of 0. 005% and WO3 recovery rate of 97.30%. It can be achieved the effective separation recovery of the tungsten, copper and molybdenum minerals from the ore by using the new process studied.