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The production of Zn from ZnO in a two-step solar process utilizing FeO and Fe3O4

Author

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  • Millar, J.
  • Palumbo, R.D.
  • Rouanet, A.
  • Pichelin, G.

Abstract

We present a model of a two-step solar process for producing Zn from ZnO. The process consists of the following reactions: Fe3O4(1) → 3FeO(1) + 12O2 and 3FeO(s,1) + ZnO(s) → Fe3O4(s) + Zn(g). The rate and extent of decomposition of the first reaction is limited by the rate at which O2 diffuses from the liquid-gas interface. We verified experimentally that the second reaction is possible. A theoretical study shows that the Zn yield can be controlled by temperature, pressure, and partial pressure of Zn. The maximum overall efficiency of this two-step process varies from 14 to 64% in the temperature range of 2100–2200 K.

Suggested Citation

  • Millar, J. & Palumbo, R.D. & Rouanet, A. & Pichelin, G., 1997. "The production of Zn from ZnO in a two-step solar process utilizing FeO and Fe3O4," Energy, Elsevier, vol. 22(2), pages 301-309.
    • Handle: RePEc:eee:energy:v:22:y:1997:i:2:p:301-309
    DOI: 10.1016/S0360-5442(96)00137-5
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    Cited by:

    1. Karaköse, Ercan & Çolak, Hakan, 2017. "Structural and optical properties of ZnO nanorods prepared by spray pyrolysis method," Energy, Elsevier, vol. 140(P1), pages 92-97.

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