What is Lead-zinc Ore Flotation ?
Lead-zinc ore is a metal mineral rich in lead and zinc. There are currently more than 250 lead-zinc minerals discovered, but only 17 of them are available.
According to the different composition of lead-zinc ore, the beneficiation process is also different, so the beneficiation equipment of lead-zinc ore is also different. Because the beneficiation of lead-zinc ore is inseparable from flotation.
According to the order of floatability and floating speed between sulfide minerals such as lead and zinc in the ore, lead concentrate, zinc concentrate and tailings are obtained by flotation from the pulp.
The mineral composition is simple, the raw ore grade is high, the floatability difference between useful minerals is large, and the ore with coarse particle size is embedded.
The flotation process is not only high-yield and energy-saving, but the flotation machine’s energy-saving can reach 60%, the amount of flotation agent is reduced by 20%, and the recovery rate is increased by 1% to 5%.
Preferential flotation, zinc suppression and lead recovery.
Collector: low-grade xanthate, high-grade xanthate and black drug. It is usually separated in alkaline medium.
Inhibitors: CN -, NaCN, KCN, ZnSO4, na2os3, Na2S2O3.
Flotation machine in lead-zinc ore dressing equipment shall meet the following four basic requirements:
1. Good inflation performance;
2. Sufficient mixing speed;
3. It can make the bubbles have a long distance to form a more stable foam area.
4. It can work continuously and is easy to adjust.