Zinc Ore Beneficiation Processing
Gulin® is a professional manufacturer of zinc ore beneficiation processing machine in China, and we supply zinc crushing machine and zinc grinding mill for zinc ore processing plant, we have over 30 years of experience, 100,000 customers worldwide, believe that their own choices.
Zinc Ore beneficiation processing
At the surface, the lead zinc ore is subjected to additional crushing and fine grinding. The flotation process is then used to separate the zinc and other valuable sulphide minerals from the waste rock particles or tailings to form a concentrate.
Ground ore, water and special chemicals are mixed and constantly agitated in banks of flotation cells. Air is blown through the mixture in each cell, and the fine zinc sulphide particles stick to the bubbles which rise to form a froth on the surface of the flotation cell. The tailings sink and are removed from the bottom of the cell. The froth is skimmed off and the resulting zinc sulphide concentrate is dried. This process upgrades the ore, which may contain only 6% zinc, to a concentrate assaying more than 50% zinc. Up to 90% of the zinc in the ore can be recovered.
Our zinc ore processing plant is widely used in Lead-Zinc mining in Pakistan,Zambia,South Africa etc. We supply zinc beneficiation equipment, such as zinc ore grinding mill,zinc ore crushing machine.
zinc ore processing flow process
According to different types of ore, beneficiation experiment of lead zinc ore should take different beneficiation method. Sulfide ore commonly adopts flotation method. Sulfide ore uses flotation, gravity concentration together with flotation to beneficiation, or flotation after sulfide baking, or re-flotation uses sulphuric acid after gravity concentration. As for lead zinc ore which contains many metals, it often uses united beneficiation method of magnetic separation-flotation, gravity concentration-flotation, gravity concentration-magnetic separation-flotation, etc.
Crushing
All forms of crushing circuits including in-pit, primary, secondary, tertiary and quaternary crushing systems.
Grinding Circuits
Large autogenous grinding (AG) and semi-autogenous grinding (SAG) circuits, as well as rod and ball milling.
Fine Grinding
Tower mills, stirred mills and ISA mills for flotation concentrate re-grinding technologies and selects the most appropriate equipment from all suppliers