Recovery of iron from copper slag via modified roasting in CO–CO2 mixed gas and magnetic separation

2020 ◽  
Vol 27 (7) ◽  
pp. 796-806
Author(s):  
Ping-guo Jiang ◽  
Jin-sheng Liu ◽  
Yi-yu Xiao ◽  
Xiao-heng Tan ◽  
Wen-jie Liu
Keyword(s):  
Magnetic Separation ◽  
Copper Slag ◽  
Mixed Gas

Synergetic utilization of copper slag and ferruginous manganese ore via co-reduction followed by magnetic separation process

2020 ◽  
Vol 250 ◽  
pp. 119462 ◽  
Author(s):  
Deqing Zhu ◽  
Jiwei Xu ◽  
Zhengqi Guo ◽  
Jian Pan ◽  
Siwei Li ◽  
...  
Keyword(s):  
Magnetic Separation ◽  
Copper Slag ◽  
Separation Process ◽  
Manganese Ore ◽  
Co Reduction

Preparation of metallic iron powder from copper slag by carbothermic reduction and magnetic separation

2016 ◽  
Vol 55 (3) ◽  
pp. 338-344 ◽  
Author(s):  
H. Long ◽  
Q. Meng ◽  
T. Chun ◽  
P. Wang ◽  
J. Li
Keyword(s):  
Iron Powder ◽  
Magnetic Separation ◽  
Metallic Iron ◽  
Carbothermic Reduction ◽  
Copper Slag

scholarly journals Iron Recovery from Discarded Copper Slag in a RHF Direct Reduction and Subsequent Grinding/Magnetic Separation Process

Minerals ◽  
2016 ◽  
Vol 6 (4) ◽  
pp. 119 ◽  
Author(s):  
Zhicheng Cao ◽  
Tichang Sun ◽  
Xun Xue ◽  
Zhanhua Liu
Keyword(s):  
Magnetic Separation ◽  
Direct Reduction ◽  
Copper Slag ◽  
Separation Process ◽  
Iron Recovery

Efficiency improvements of the CO-H2 mixed gas utilization related to the molten copper slag reducing modification

2021 ◽  
Vol 146 ◽  
pp. 292-299
Author(s):  
Huaiwei Zhang ◽  
Liang Bao ◽  
Yifan Chen ◽  
Weidong Xuan ◽  
Yongjun Yuan
Keyword(s):  
Copper Slag ◽  
Molten Copper ◽  
Mixed Gas ◽  
Gas Utilization

Influence on Concentration of Magnetite with Changing of Fe3+/Fe2+ in Copper Slag

2013 ◽  
Vol 634-638 ◽  
pp. 3080-3083
Author(s):  
Long Kui Jiang
Keyword(s):  
Iron Oxide ◽  
Magnetic Separation ◽  
Reaction Temperature ◽  
Copper Slag ◽  
Total Iron ◽  
Magnetic Iron Oxide ◽  
Separation Technology ◽  
Magnetite Fe3o4 ◽  
Oxide Minerals ◽  
Magnetite Phase

Large number of available resource is in the copper slag, which includes oxides of copper and oxides of iron. The total iron in copper slag is usually above 35%, and iron element in copper slag are mainly distributed in olivine phase and magnetic iron oxide minerals. Because minerals in copper slag embedded with each other and the grain of minerals in copper slag are very small, so it is very difficult to recover iron from the copper slag by means of traditional separation technology. Based on the characteristics of copper slag, iron in copper slag can selectively be gathered to magnetite phase through the melted copper slag is processed, and the size of grain of magnetite grows up by adopting appropriate measure to control the reaction temperature. With magnetic separation technology, the magnetite (Fe3O4) can be gotten which contains more total iron.

A novel process to upgrade the copper slag by direct reduction-magnetic separation with the addition of Na2CO3 and CaO

2019 ◽  
Vol 347 ◽  
pp. 159-169 ◽  
Author(s):  
Siwei Li ◽  
Jian Pan ◽  
Deqing Zhu ◽  
Zhengqi Guo ◽  
Jiwei Xu ◽  
...  
Keyword(s):  
Magnetic Separation ◽  
Direct Reduction ◽  
Copper Slag

Effect of Copper Slag as a Fine Aggregate on the Durability Characteristics of High-Performance Concrete (HPC) Containing Silica Fume

2020 ◽  
Vol 07 (02) ◽  
pp. 1-10
Author(s):  
Rizwan Ahmad Khan ◽  
Keyword(s):  
Silica Fume ◽  
High Performance ◽  
High Performance Concrete ◽  
Copper Slag ◽  
Chloride Penetration ◽  
Interfacial Transition Zone ◽  
Fine Aggregate ◽  
Fresh Properties ◽  
Fine Aggregates ◽  
Effect Of Copper

This paper investigates the fresh and durability properties of the high-performance concrete by replacing cement with 15% Silica fume and simultaneously replacing fine aggregates with 25%, 50%, 75% and 100% copper slag at w/b ratio of 0.23. Five mixes were analysed and compared with the standard concrete mix. Fresh properties show an increase in the slump with the increase in the quantity of copper slag to the mix. Sorptivity, chloride penetration, UPV and carbonation results were very encouraging at 50% copper slag replacement levels. Microstructure analysis of these mixes shows the emergence of C-S-H gel for nearly all mixes indicating densification of the interfacial transition zone of the concrete.

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