Research on forming experiment of Panzhihua pyrite residue pellets with carbon-containing

Li Junhan

doi:10.7513/j.issn.1004-7638.2022.06.018

Volume 43 Issue 6

Jan. 2023

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Li Junhan. Research on forming experiment of Panzhihua pyrite residue pellets with carbon-containing[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(6): 121-125. doi: 10.7513/j.issn.1004-7638.2022.06.018

Citation:

Li Junhan. Research on forming experiment of Panzhihua pyrite residue pellets with carbon-containing[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(6): 121-125. doi: 10.7513/j.issn.1004-7638.2022.06.018

Li Junhan. Research on forming experiment of Panzhihua pyrite residue pellets with carbon-containing[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(6): 121-125. doi: 10.7513/j.issn.1004-7638.2022.06.018

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Research on forming experiment of Panzhihua pyrite residue pellets with carbon-containing

doi: 10.7513/j.issn.1004-7638.2022.06.018

Li Junhan

School of Vanadium and Titanium, Panzhihua University, Panzhihua 617000, Sichuan, China

Received Date: 2022-05-30
Publish Date: 2023-01-13

Abstract

Abstract

In order to separate and recover iron resources of Panzhihua pyrite residue, using Panzhihua pyrite residue as raw material, pulverized coal as carbon source, and polyvinyl alcohol (PVA) as binding agent, the influences of the content of polyvinyl alcohol, the water content, the pressure and the particle size composition on the mechanical strength properties of pyrite residue carbon pellets were studied in this paper by orthogonal experiments and single factor optimization experiments. The research results show that the pressure has the greatest influence on the strength properties of pyrite residue carbon pellets, followed by the content of polyvinyl alcohol and water content, and finally the particle size composition. The appropriate process for forming pyrite residue carbon pellets was obtained including the content of polyvinyl alcohol of 0.4%, the water content of 9%, the pressure of 10 MPa, and below 88 μm particle size of 70%. Under these conditions, the compressive strength of pellets was 185.4 N/pellet and the falling strength was 42.5 times/pellet, which meet the requirements of mechanical strength in pellets industrial production. The research results will provide reference for the reduction, separation and recovery of iron resources from pyrite residue, and also lay a certain foundation for the improvement of the comprehensive utilization rate of Panzhihua vanadium titano-magnetite resources.
- pyrite residue,
- carbon-containing pellet,
- forming pressure,
- mechanical strength

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References(8)

References

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