2024
DOI: 10.3390/met14060630
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Separation of Zr and Si in Zirconium Silicate by Sodium Hydroxide Sub-Molten Salt

Hongqian Sun,
Jing Song,
Tao Qi

Abstract: In order to cleanly and efficiently extract zirconium from zircon sand (the main component is ZrSiO4), sodium hydroxide sub-molten salt was used to decompose ZrSiO4 in this study. When ZrSiO4 reacts with sodium hydroxide sub-molten salt, the formation of Na2ZrSiO5 (a water-insoluble product) considerably affects the separation efficiency of Zr and Si and increases production cost. Thus, it is necessary to control the formation of Na2ZrSiO5. The influence of NaOH content, reaction temperature, reaction time, an… Show more

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