COMBINED AGGREGATION SEPARATION-A NEW WAY FOR WEAKLY MAGNETIC IRON ORE BENEFICIATION

Weakly magnetie iron ores in China are commonly characterized by fine dissemination of their component minerals, It is difficult to acheive a satisfactory result in the beneficiation of such ores by using the ordinary concentration methods. In this paper, a new technique for the weakly magnetic iron ore beneficiation-combined aggregation separation is described. Much improved results have been gained for various types of weakly magnetic iron ores, e·g·martite type, limonite type and siderite type, by using the new technique. It shows that combined aggregation separation is widely applicable and effective for the beneficiation of fine and ultrafine disseminated weakly magnetic iron ores, therefore, has a strong potentiality for commercial application