flotation scheme adopted for concentration of the lead-zinc ore sample consisted of differential flotation separation by depression of zinc bearing minerals using a combination of sodium cyanide and zinc sulphate as depressant and flotation of lead minerals using potassium ethyl xanthate as collector and methyl iso-butyl carbinol MIBC as frother.
Most of the lead–zinc ore contains silver and to a lesser degree gold. Almost 85% of the silver production in the world comes from lead–zinc ores.
The rougher zinc concentrate is cleaned two times to produce a high grade zinc concentrate. The lead and zinc flotation was conducted in “Sub-A” Flotation Machines which provides for the maximum grade of concentrates and the maximum flexibility for the continuous retreatment of the cleaner middlings. Thickening and Filtering. The final lead ...
The zinc tailings pass over a Wilfley Table which gives the operator a constant visual picture of the efficiency of the zinc flotation machine and also recovers additional zinc values. Zinc concentrates are fed to a Wilfley Table to remove any lead oxide values which may have floated with the zinc and then are thickened in a Thickener.
Primary studies carried out with this ore have shown that flotation of oxidized lead and zinc minerals in particular zinc minerals was difficult Engin and Önal 2003 . In this paper flotation properties of lead–zinc minerals or possibilities of producing a concentrate by gravity concentration methods were discussed.
Because of de-sprm the amount of feed ore of zinc oxide ore flotation reduced by nearly half therefore the zinc oxide ore flotation circuit only had one series. The flotation flowsheet and corresponding reagent scheme of the industrial scale tests was shown in Fig. 1 1 original and 2 New . 3. Results and discussion3.1.
1. Introduction. In the mineral processing industry lead-zinc sulfide ores are usually processed by froth flotation to enrich the purpose minerals .Flotation is a complex process and the selective separation of minerals depends on the balance between the hydrophilic species and hydrophobic species on the mineral surface .