Citation:
WANG Xin, GAN Shu-Cai, PAN Yuan-Zhang, CAO Lin. Extraction of Quenching Compounds Containing Fe2+ from Calcite[J]. Chinese Journal of Applied Chemistry,
;2003, 20(4): 368-370.
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Extraction processes of quenching compounds containing Fe2+ from natural mineral luminescent calcite with ammonium chloride,o-phenanthroline and ammonium oxalate were studied.The extraction yield of Fe2+ was 98.50%.Luminescence material-CaS:Mn2+ phosphors were prepared from calcite after Fe2+ had been leached out by sulfurizing flux method.
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Keywords:
- luminescence material,
- calcite,
- quenching compound
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