工程施工技术

高温熔融还原铜渣冶炼铜铁合金

黄伟军 (河北工程大学材料科学与工程学院；包头稀土研究院资源与生态环境研究所), 刘亚静 (河北工程大学材料科学与工程学院)

摘要


研究了一种采用碳热法冶炼铜铁合金直接还原技术。铜和铁的回收率随反应时间、反应温度和还原剂量的增加而增加。为了得到适宜还原率与合金成分，还原条件为1500℃，14wt% C，20～25wt% CaO，60～80min。铁和铜的回收率分别约为90%和85%，合金中铁和铜的含量分别为91～93wt%和5～7wt%。尾矿主要由Ca3Si3O9、Ca(Mg,Al)(Si,Al)2O6和SiO2组成，可作为水泥和球团制备的原料。

关键词


熔融铜渣；Cu-Fe合金；回收率；直接还原

全文:

PDF

参考


Roy,S K, Nayak D,Rath S S.A review on the enrichment of iron values of low-grade iron ore resources using reduction roasting-magnetic separation[J].Powder Technology,2020,3(67):796-808.

Dwari,R K,Rao D S,Reddy P SR.Magnetic separation studies for a low grade siliceous iron ore sample[J].International Journal of Mining Science and Technology,2013,23(1):1-5.

Li K Q,Ping S,Wang H Y,et al.Recovery of iron from copper slag by deep reduction and magnetic beneficiation[J].International Journal of Minerals Metallurgy and Materials,2013,20(11):1035-1041.

Afshoon I,Sharif Y.Utilization of micro copper slag in SCC subjected to high temperature[J].Journal of Building Engineering,2020(29):101128-101143.

Isaksson J,Vikström T,Lennartsson A,et al.Settling of copper phases in lime modified iron silicate slag[J].Metals,2021(11):1098-1110.

Shui L,Cui Z X,Ma X D,et al.Mixing phenomena in a bottom blown copper smelter:a water model study[J].Metallurgical And Materials Transactions B,2015,46(3):1218-1225.

Najimi M,Pourkhorshidi A R. Properties of concrete containing copper-slag-waste[J].Magazine of Concrete Research,2011,63(8):605-615.

Das B,Mishra B K,Angadi S,et al.Characterization and recovery of copper values from discarded slag[J].Waste Management & Research,2010,28(6):561-567.

Lowinska-Kluge A,Piszora P,Darul J et al.Characterization of chemical and physical parameters of post copper slag[J].Central European Journal of Physics,2011,9(2):380-386.

Alp I,Deveci H,Süngün H.Utilization of flotation wastes of copper slag as raw material in cement production[J].Journal of Hazardous Materials,2008(159):390-395.

Zhang B J,Zhang T A,Niu LP,et al.Moderate dilution of copper slag by natural gas[J].JOM,2018,70(1):47-52.

Gopalakrishnan R,Nithiyanantham S.Microstructural,mechanical,and electrical properties of copper slag admixtured cement mortar[J].Journal of Building Engineering,2020(31):101375-101382.

Lori AR,Hassani A,Sedghi R.Investigating the mechanical and hydraulic characteristics of pervious concrete containing copper slag as coarse aggregate[J].Construction and Building Materials,2019(197):130-142.

Rajasekar A,Arunachalam K,Kottaisamy M.Assessment of strength and durability characteristics of copper slag incorporated ultrahigh strength concrete[J].Journal of Cleaner Production,2019(208):402-414.

Zhang H B,He Y Z,Hu J J,et al.Assessment of selective sequential extraction procedure for determining arsenic partitioning in copper slag[J].Transactions of Nonferrous Metals Society of China,2020,30(10):2823-2835.

Wang H Y,Song S X.Separation of silicon and iron in copper slag by carbothermic reduction-alkaline leaching process[J].Journal of Central South University,2020(27):2249-2258.

Yin F,Xing P,Li Q,et al.Magnetic separation-sulphuric acid leaching of Cu-Co-Fe matte obtained from copper converter slag for recovering Cu and Co[J].Hydrometallurgy,2014(149):189-194.




DOI: https://doi.org/10.33142/ect.v3i7.17165

Refbacks

  • 当前没有refback。