《Table 2.Results of spectral analysis of the ore sample》

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《Selective depression mechanism of ferric chromium lignin sulfonate for chalcopyrite–galena flotation separation》

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wt%

On the basis of the flotation experimental results in Section 3.2，FCLS can be used industrially.Hence，open-circuit flotation experiments were conducted.The feed material containing 0.38wt%Cu and 1.92wt%Pb from Pingjiang Cu–Pb–Zn Mine（Hunan，China）was used for these experiments.Mineralogical data confirmed the complex mineral composition consisting of various mineral species.Cu and Pb mainly existed in the form of chalcopyrite and galena，and the predominant gangue minerals were quartz，calcite，sericite，and chlorite.The spectral analysis results for the ore sample are shown in Table 2.