contact angle Si O 2 010 Ca CO

접촉각( contact angle) 측정기 광물 접촉각 석영 Si. O 2 0~10 방해석 Ca. CO 3 0~10 황철석 Fe. S 2 26~33 황동석 Cu. Fe. S 2 47 방연석 Pb. S 47 섬아연석 Zn. S 46 휘수연석 Mo. S 2 50~60 흑연 C 55~60 활석 Mg 3 Si 4 O 10(OH)2 69~77 5

Xanthate Potassium ethyl xanthate (PEX) Xanthate Sorption 12

Copper oxide flotation – ionic collector 13

Copper oxide flotation – Sulfidization+Xanthate