河南某低品位铁铜矿综合回收试验研究  

Experimental Research on Comprehensive Recovery of Low-Grade Iron-Copper Ore in Henan

作　　者：王新宇 王久 赵永利 娄兰 赵凯 张森森 张东亮[4] WANG Xinyu;WANG Jiu;ZHAO Yongli;LOU Lan;ZHAO Kai;ZHANG Sensen;ZHANG Dongliang(The Fifth Geological Branch of Henan Province Non-ferrous Metal Geological Mineral Resources Bureau,Zhengzhou 450016,Henan,China;Henan Non-ferrous Jinyuan Industrial Co.,Ltd.,Kaifeng 475516,Henan,China;Henan institute of geology,Zhengzhou 450016,Henan,China;School of Earth Sciences and Information,Central South University,Changsha 410083,Hunan,China)

机构地区：[1]河南省有色金属地质矿产局第五地质大队,河南郑州450016 [2]河南有色金源实业有限公司,河南开封475516 [3]河南省地质研究院,郑州450016 [4]中南大学地球科学与信息学院,长沙410083

出　　处：《中国钼业》2023年第2期37-42,共6页China Molybdenum Industry

基　　金：河南省地质勘查基金项目(项目编号05035);河南省有色金属地质矿产局2022年重点项目“花岗岩选矿尾料的高值化清洁综合利用开发示范”(项目编号zd2022-01)。

摘　　要：河南某铁铜矿属矽卡岩型铁铜矿石类型,矿物组成比较简单,主要金属矿物为磁铁矿,其次为黄铜矿、黄铁矿、少量赤褐铁矿。铜矿优先浮选试验控制磨矿细度为-0.074 mm粒级占70%,以石灰作pH值调整剂和黄铁矿抑制剂,石灰用量1500~2000 g/t,脉石矿物抑制剂水玻璃用量为1500 g/t,捕收剂丁铵黑药用量为50g/t,进行条件试验。经两粗三精两扫闭路流程试验,获得铜品位16.37%,铜回收率77.69%的合格精矿,实现低品位铜矿的有效回收。选铜尾矿进行磁选,经一次粗选,粗精矿再磨精选,获得铁品位65.50%,含硫0.13%,铁回收率53.53%的二级合格铁精矿。实现铁和低品位铜综合回收利用。An iron-copper ore in Henan province belongs to the skarn-type iron-copper ore,which has simple mineral composition.The main metal minerals of the iron-copper ore are magnetite,followed by chalcopyrite,pyrite,and a small amount of hematite-limonite ore.The copper selective flotation test controlled the grinding fineness is of-0.074 mm by 70%,taking lime as pH regulator and depressants of pyrite with the dosage of 1 500~2 000 g/t,water glass as depressants of gangue mineral with the dosage of 1 500 g/t,and ammonium dibutyl dithiophosphate as collector with the dosage of 50 g/t.A copper concentrate with Cu grade of 16.37% and Cu recovery of 77.69 % was obtained by closed-circuit tests consisting of two roughing-three cleaning and two scavenging to reach efficient recovery of low-grade copper ore.Copper tailings were selected for magnetic selection.After a rough selection,coarse concentrate regrinding and selection,secondary qualified iron concentrate with iron grade of 65.50%,0.13% sulfur and iron recovery of 53.53% was obtained,realizing the comprehensive recovery and utilization of iron and low grade copper.

关 键 词：黄铜矿 磁铁矿 铁精矿 铜精矿 浮选 磁选 

分 类 号：TD952[矿业工程—选矿]