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采用选择性溶解方法对铜合金废渣中的锡进行富集和分离。使用HNO3溶液溶解铜合金废渣,渣中的锡不会溶解从而使其从中得到分离。通过离心分离生成的H2SnO3沉淀相,然后经过干燥加热生成SnO2粉末。对SnO2粉末的相组成、表面形貌和化学成分进行分析。
The method of selective dissolution of copper alloy waste tin enrichment and separation. The HNO3 solution is used to dissolve the copper alloy waste residue, and the tin in the slag will not dissolve so that it will be separated therefrom. The precipitated phase of H2SnO3 was separated by centrifugation and then dried to produce SnO2 powder. The phase composition, surface morphology and chemical composition of SnO2 powder were analyzed.