The influence of Al2O3 to vanadium concentration in vanadium bearing steelmaking slag system

Acta Metall Sin

2008, Vol. 44

Issue (5): 603-608 DOI:

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The influence of Al2O3 to vanadium concentration in vanadium bearing steelmaking slag system

安徽工业大学

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. The influence of Al2O3 to vanadium concentration in vanadium bearing steelmaking slag system. Acta Metall Sin, 2008, 44(5): 603-608 .

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Abstract The influence of Al2O3 on vanadium concentration in V-bearing steelmaking slag was stud ied. It was found that the prior precipitated phase of Ca2SiO4（S）contained V and P reacts with （Al2O3）to produce a new V- bearing mineral（Ca3(V,P)2O8•nCa2SiO4），and gehlenite（Ca2 Al2SiO7），when the melt slag modified by Al2O3 cooled down to1623K slowly.As the content of （Al2O3）increasing, Ca2SiO4 will vanished.Because（Al2O3）continue to react with Ca2SiO4 in the new V- bearing mineral,to produce gehlenite. the vanadium concertration in Ca3(V,P)2O8•nCa2SiO4 will increase.results also indicate that the phase of Ca3(V,P)2O8•nCa2SiO4 will be produce enormously and vanadium content in Ca3(V,P)2O8• nCa2SiO4 is high by method of control Al2O3 content in slag. This results provides a solid basic for the design of vanadium concentration mineral and increased the content of vanadium in the V-enriched mineral as much as possible.

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Received: 29 September 2007

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2008/V44/I5/603

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