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Gold Extraction With Sodium Sulfite

Mar 01, 2002nbsp018332consequently, the pre-washed residues were used and the gold extraction rates in the presence and absence of sodium sulfite were compared.At the same usage of 3.0 g thioureakg concentrate leaching for 12 h at room temperature, the gold extraction rate of the former was more than 98, whereas the latter was less than 60.

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