【摘要】 为了解决中非共和国某大型氧化铜钴矿常规选矿工艺选矿回收率低、经济效益差等突出问题，文章创新性地引入浮-磁联合工艺处理该矿区产出的代表性矿石，通过大量试验研究，筛选出苯甲羟肟酸+戊基黄药在2∶1的配比下的组合捕收剂为最佳的浮选捕收剂，大幅度地提高了氧化铜钴矿的浮选回收率，针对浮选尾矿中部分铜钴矿物以铜锰钴硅氧化结合物态赋存的特性，开发高梯度磁选机用于处理浮选尾矿，得到一个以铜、钴为主的磁选精矿，浮-磁联合工艺产出的浮选铜钴精矿、磁选铜钴精矿中总铜回收率达到了88.66%,总钴回收率达到了68.92%,实现了对中非氧化铜钴矿中铜钴资源的高效综合回收。更多还原

【Abstract】 In order to solve the outstanding problems of low recovery and poor economic benefits in conventional beneficiation processes for a large copper and cobalt oxide ore in the Central African Republic, this paper introduces a floatation-magnetic combined process to treat representative ores produced in the mining area.Through small-scale experimental research, a combination collector of benzohydroxamic acid and amyl xanthate at a ratio of 2∶1 was selected as the best flotation collector, which greatly improved the flotation recovery of copper and cobalt oxide ore, According to the characteristics of some copper and cobalt minerals in flotation tailings that occurs in combination with copper, manganese, cobalt, and silicon oxidation, a high gradient magnetic separator was introduced to treat flotation tailings to obtain a magnetic separation concentrate dominated by copper and cobalt.The floatation-magnetic combined process produces copper and cobalt concentrates with a total copper recovery rate of 88.66% and a total cobalt recovery rate of 68.92%,achieving a comprehensive recovery of copper and cobalt resources from non oxidized copper and cobalt ores.更多还原