Extraction and rapid x-ray fluorescence
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J. Muralidhar; Usharani Patnaik; S. Misra; Rajeev
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Article
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1998
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John Wiley and Sons
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English
β 196 KB
Leaching of tungsten in the ore-dressing products of scheelite by various carboxylic acids revealed that oxalic acid leaches tungsten quantitatively. Powdered scheelite samples of Γ200 mesh size were decomposed with 4% oxalic acid at 100 ΓC with constant stirring for 1 h. Tungsten was determined by