Depressant, Polymer Polyacrylamide, Mineral Processing manufacturer / supplier in China, offering SIAX:Top-Quality Sodium Isoamyl Xanthate Direct from Factory, PEX:Potassium Ethyl Xanthate for Mining Chemicals Flotation Reagent, Mainly depresses silicate gangue, also lead in Cu/Pb separation, disperses sludge---CMC and so on.