ich type of ore can be concentrated by electromagnetic separation method

dear student,

This method is meant for separating magnetic impurities from non-magnetic ore particles. Example: Pyrolusite, Chromite, and tinstone.

An electro-magnetic separator device comprising at least one pair of electro-magnetic poles disposed in horizontal spaced relation, an armature horizontally movable disposed in horizontal bridging relation to said poles with a space gap therebetween, a stationary receptacle containing a fluid enclosing the said space gap, the side walls of said receptacle lying adjacent the faces of said armature and said poles, and means to drop a mixture of magnetic and non-magnetic particles through the said enclosed space gap whereby the said magnetic particles are separated from the non-magnetic by being attracted to the inner face of the said wall next adjacent the said movable armature and carried horizontally therealong by movement of the said armature to a point removed from the path of fall of the said non-magnetic particles. 9. An electro-magnetic separator device comprising at least one pair of horizontally spaced electro-magnetic poles of opposite polarity, an armature movable horizontally and horizontally spaced from said poles, a stationary receptacle containing a fluid disposed in the space gap between said poles and said armature and isolating the same from said fluid and means to drop material comprising a mixture of magnetic and non-magnetic particles through the said fluid within an electro-magnetic field passing between at least one of said poles and said armature, thereby attracting the said magnetic particles to the inner face of the wall of said receptacle next adjacent the said armature and moving the same horizontally therealong out of the said magnetic field to a point removed from the path of fall of said non-magnetic particles.