Abstract: Through the investigation on the properties and flotation process of Tianbaoshan copper-lead-zinc polymetallic ore, it is found that the ore has complex association and dissemination. The research results indicate that, if the ore is duly finely ground, good separation indexes can be achieved in either process adopting preferential flotation or that adopting partial bulk flotation. It is also shown that the process adopting preferential flotation is superior to that adopting partial bulk flotation.

Key words: Copper-lead-zinc polymetallic ore, Fine grinding, Flotation