Reduction Mechanisms During the Recovery of Mo and Fe via Molten-Bath Smelting of Copper Slag and Waste MoSi2
Zhi Liu, Baojing Zhang, Junsheng Cheng, Le Yu, Junxiu Li, Zixin Zhang, Shiheng Li, Xiang Zhang
TL;DR
This study proposes a method to recover molybdenum and iron from copper slag and waste MoSi2 using molten-bath smelting, achieving high recovery efficiencies.
Contribution
A synergistic smelting approach is introduced for the efficient recovery of Mo and Fe from two industrial solid wastes.
Findings
Optimized conditions achieved 98.97% molybdenum recovery and 98.46% iron recovery.
Coke acts as both a reductant and atmosphere maintainer during smelting.
Phase evolution and reduction behavior of MoSi2 were clarified under non-isothermal conditions.
Abstract
Molybdenum (Mo) finds extensive applications in the steel industry, and the recycling of secondary molybdenum resources is crucial for the green development of the molybdenum sector. Meanwhile, the large-scale stockpiling of copper slag, a bulk industrial solid waste, poses severe environmental and resource-related challenges. Addressing the common issues of the refractory nature of waste molybdenum disilicide (MoSi2) and the underutilization of iron resources in copper slag, this study proposes a synergistic smelting approach using copper slag and waste MoSi2, aiming to realize the coordinated treatment of these two solid wastes and the simultaneous, efficient recovery of valuable metals (Mo and Fe). Under non-isothermal conditions, this work elucidates the phase evolution of copper slag and the decomposition–reduction behavior of MoSi2; clarifies the dual role of coke as the primary…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsMetal Extraction and Bioleaching · Metallurgical Processes and Thermodynamics · Extraction and Separation Processes