Digenite fine particles are easily oxidized and ferric ions (Fe3+) commonly exist in the flotation pulp of digenite. This study investigated effect Fe3+ on sulfidization digenite using sodium butyl xanthate (SBX) as a collector. The results microflotation experiments show that rate recovery can be improved by adding Na2S SBX, whereas existence large amounts is not beneficial for adsorption, zet...