Study on the Processing Technology of Calamine Calcination by Near-Infrared Spectroscopy

Figure 5

NIR spectra of 8 batches of calamine samples during calcination in the 5750–4000 cm⁻¹ region. (a) S1 (hydrozincite and hemimorphite). (b) S2 (hydrozincite). (c) S3 (hydrozincite, hemimorphite, and dolomite). (d) S4 (hydrozincite, hemimorphite, and dolomite). (e) S5 (hydrozincite, hemimorphite, dolomite, and calcite). (f) S6 (hydrozincite). (g) S7 (hydrozincite, hemimorphite, dolomite, and calcite). (h) S8 (hydrozincite and hemimorphite).

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