Effect of iron impurity in zinc sulfide concentrates on the rate of dissolution
作者： Frank K. Crundwell
关键词: Zinc sulfide 、 Dissolution 、 Carbonate-hosted lead-zinc ore deposits 、 Electronic structure 、 Impurity 、 Band gap 、 Semiconductor 、 Chemistry 、 Sphalerite 、 Inorganic chemistry
摘要: The rate of dissolution sphalerite is shown to be directly proportional the concentration substitutional iron impurity in solid. This attributed formation a narrow band within forbidden gap sphalerite. d-orbital origin. transfer electrons between this and oxidant energetically more favorable than valence oxidant. A fundamental model combining electronic structure semiconductor electrochemistry presented. An equation derived that describes as being first order for solid half-order agreement with experimental evidence.
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