pH Ranges for Sequential Cu Pb Zn Flotation | Separation
To understand froth flotation, first read that article and come back to read about sequential flotation of Copper, Lead and Zinc. Given a baseline amount of frother and collector, these curves are the approximate/relative rate of flotation recovery of Copper (Chalcopyrite/Bornite/Chalcocite/Covellite/Tennantite/Enargite/Tetrahedrite /Freibergite ), Lead (Galena) and Zinc (Sphalerite) as well as iron (pyrite/arsenopyrite) minerals VS […]
Zinc Sphalerite Activation & Conditioning Time Effect of CuSO4 Copper Sulphate
The most effective, and really only way for recovery of zinc sphalerite by froth flotation is by first activating the mineral with CuSO4 (Copper Sulphate) and allowing some conditioning time. How much time is optimum for effective zinc activation and good froth flotation? Obviously the answer to that is dependent on the test sample’s mineralogy, […]
Sequential Copper–Lead–Zinc Flotation
To improve the selectivity between copper and lead, a sequential copper-lead-zinc rougher circuit was tested. Each of the rougher circuits had a dedicated regrind and cleaner circuit. The advantages of the sequential circuits are that the levels of selectivity can be increased, particularly for copper and lead. With this process, copper was recovered first with MBS depression of lead, […]
High zinc levels are poisoning the New River
The historic New River, which flows through central Appalachia – across North Carolina and West Virginia, in Virginia (USA) -, is showing signs of high levels of zinc that is poisoning the water and polluting the nearby land. New evidence has arisen, but the Department of Environmental Quality (DEQ) is not acting to solve the problem. This […]