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Methods of Concentration in Mineral Processing Plant

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Chanderpur Group
Methods of Concentration in Mineral Processing Plant

Concentration is an essential step in a mineral processing plant where minerals are separated from a mixture of various substances based on their properties such as color, density, physical and chemical properties. The nature of the mineral to be processed in the mineral processing plant largely determines the method of concentration to be used in mineral processing. Different methods are adopted for concentration in mineral processing:

Optical Separation

Minerals with visibly different colors can be easily separated from the rest of the mixture. For minerals with minor color variations, exposure to infrared rays, visible or ultraviolet rays result amplifies the color difference.

Gravity Separator

A gravity separator works based on the difference in the density of various particles in the mixture. The undesired material or gangue is usually the lightest and floats on top. The useful minerals settle at the bottom and can be separated form there using other methods.

Flotation Separator

This is the most widely used method of concentration and can be used to separate minerals that may not be separated using any other equipment. The hydrophobic or hydrophilic nature of the mineral is exploited to separate it from the gangue.

Magnetic Separator

Some minerals can be separated using a strong magnetic field. These cannot be used for minerals that remain unaffected by a magnetic force. Electrostatic Separator Particles of different electrical charge can be separated by using an electrostatic force. Look out for all the possible parameters required for the best outcomes.

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