铜金铁多金属矿综合回收选矿工艺研究
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摘要
某铜金铁多金属矿中金、铜、硫铁矿共生关系密切,采用先硫后氧浮选铜金混合精矿、尾矿选铁的工艺流程,对有价元素进行了综合回收,获得了金铜精矿中铜品位17.31%、回收率65.34%,金品位52.40 g/t、回收率82.15%,铁精矿品位64.20%、回收率66.64%的技术指标。并对两种精矿产品进行了元素分析,有害元素均未超标。该工艺达到了资源综合利用和提高经济效益的目的。
In view of the complicated intergrowth relationship of pyrite and gold/copper minerals in a polymetallic copper-gold-iron ore,a flowsheet,including a preferential flotation process to float sulfide ore before oxide ore to reclaim copper-gold bulk concentrate, and a reclaiming of iron minerals from the roughing tailings, was introduced for comprehensive recovery of valuable elements therein,resulting in the obtained gold-copper concentrate grading 17.31%Cu and 52. 40 g/t Au with a copper recovery of 65. 34% and a gold recovery of 82.15%,and the obtained iron concentrate approaching 64.20% Fe at 66.64% recovery. According to the chemical composition analysis,harmful elements in these two concentrates do not exceed the standard. The purposes for comprehensive utilization of resources and creation of more economic benefits can be achieved.
In view of the complicated intergrowth relationship of pyrite and gold/copper minerals in a polymetallic copper-gold-iron ore,a flowsheet,including a preferential flotation process to float sulfide ore before oxide ore to reclaim copper-gold bulk concentrate, and a reclaiming of iron minerals from the roughing tailings, was introduced for comprehensive recovery of valuable elements therein,resulting in the obtained gold-copper concentrate grading 17.31%Cu and 52. 40 g/t Au with a copper recovery of 65. 34% and a gold recovery of 82.15%,and the obtained iron concentrate approaching 64.20% Fe at 66.64% recovery. According to the chemical composition analysis,harmful elements in these two concentrates do not exceed the standard. The purposes for comprehensive utilization of resources and creation of more economic benefits can be achieved.
引文
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[3]曹玉川.某硫化铜矿浮选工艺对比试验研究[J].矿冶工程,2017,37(6):54-56.
[4]张玲,王素玲.某含铜铁矿石选铁工艺试验研究[J].矿冶工程,2017,37(4):48-50.
[5]卢颖,孙胜义.组合药剂的发展及规律[J].矿业工程,2007(6):42-44.
[6]冯其明,周清波,张国范,等.六偏磷酸钠对方解石的抑制机理[J].中国有色金属学报,2011,21(2):436-441.
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