Gold Heap Leaching Process

Magnetic separation places the leading position in iron ore separation. For weak magnetic and lean iron, Xinhai adopts gravity separation, magnetic separation, flotation, and roasting magnetic separation; used for strong magnetic iron ore, magnetic separation.

Process Description

Strong magnetic iron ore separation process

It is used to low grade magnetite. Due to the strong magnetic and easy to grind, one stage grinding is adopted for magnetite with coarse particle distribution, conversely the multi stages grinding. At present the fine grinding technology promoted by Xinhai improves the concentrate grate from 61% to 67%.

Weak magnetic iron ore separation process

Weak magnetic mineral could use the strong magnetic mineral separation process after the magnetizing and roasting.

Fine Grinding

In two stages grinding, stages separation, single weak magnetic flow, fine grinding means adding fine screen regrinding process to separate fine minerals timely and reduce the over-grinding. It improves the capacity of ball mill and concentrate grade by 2%.

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