The Simplest Way of Limonite Ore Beneficiation

Limonite, hematite, specular hematite all belongs to weakly magnetic iron ore. As a main raw material used for ironmaking, the limonite ore can be treated with many purification method and the regular beneficiation methods are gravity separation, floatation method, magnetic separation and magnetic roasting method, etc. but which method is the easiest way for limonite processing?

In reality, the simplest way of limonite beneficiation are gravity separation and magnetic separation. Gravity separation make use of the difference in specific gravity between minerals and gangue with the advantages of less investment, low production costs, simple beneficiation process, no polluting and energy saving. And the magnetic separation mainly use high intensity magnetism to get minerals separated. This method brings a good effect for the coarse-grained disseminated limonite beneficiation, however for fine-grained disseminated limonite processing it is ineffective and the equipment investment is large.

In contrast, the gravtiy separation for limonite separation is a good choice and the sorting equipment are primarily jiggers. The jigging plant can handle coarse, medium and fine-grained limonite, but only those coarse-grained disseminated and obvious different specific gravity limonite ore can be done with the jigger.

Although the gravity separation is the best way to limonite separation, it is not to say that all types of limonite can be dealed with a jig ger machine. For fine grained disseminated limonite ore, flotation and magnetization roasting method would be the most ideal beneficiation method.