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The froth flotation of malachite from the carbonate ore which was mixed with dolomite (CaMg(CO3)2) 60 wt%, calcite (CaCO3) 30 wt% and malachite (Cu2(OH)2CO3) 10 wt% was carried out. The sodium oleate or potassium amyl xanthate (PAX) as a collector in flotation were used individually or together, and also carboxymethyl cellulose (CMC) was used for depressant of dolomite and calcite minerals. When the sodium oleate was used, the flotation yield of the mixed ore was high but Cu grade of the concentrate was low because of low selectivity.On the contrary, when PAX collector was used, the flotation yield was about 9.0~10.1 wt% and the recovery of Cu was 57.5~75.7% while the Cu grade of flotation concentrate was kept with high value of Cu 31.2~45.4 wt%. In case of using sodium oleate and PAX together, although the Cu grade of concentrate was not higher value of Cu 14~19 wt% compared to using only PAX, the recovery of Cu showed high value of 77.4~91.8%.
탄산염 광물인 백운석(CaMg(CO3)2), 방해석(CaCO3) 및 공작석(Cu2(OH)2CO3)을 6:3:1 무게비로 혼합한 시료에 대하여 부유선별 실험을 수행하였다. 부유선별의 포수제로는 sodium oleate 또는 potassium amyl xanthate(PAX)를 단독으로 사용하거나 sodium oleate와 PAX를 함께 사용하였으며, 백운석이나 방해석의 억제를 위해 carboxymethyl cellulose(CMC)를 억제제로 사용하였다. sodium oleate를 사용하였을 때는 부선 산출율은 높았지만 정광의 Cu의 함량은 낮았다. 반면에 PAX를 사용하였을 때는 부선 산출율은 9.0~10.1 wt%로 낮았지만 정광의 Cu의 함량은 31.2~45.4 wt%로 높았다. 그리고 sodium oleate와 PAX를 함께 사용하면 PAX를 단독으로 사용한 부선보다는 Cu 함량은 14.3~18.6 wt%로 높지 않았지만 77.4~91.8%의 높은 Cu 회수율을 나타내었다.
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- Publisher :The Korean Society of Mineral and Energy Resources Engineers
- Publisher(Ko) :한국자원공학회
- Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
- Journal Title(Ko) :한국자원공학회지
- Volume : 52
- No :1
- Pages :1-8
- DOI :https://doi.org/10.12972/ksmer.2015.52.1.001
Journal of the Korean Society of Mineral and Energy Resources Engineers
