September 2000
Volume 52    Issue 9

Bulk sorting by LIF: quality control of ores for bulk sorting and blending by laser-induced fluorescence analysis

Mining Engineering , 2000, Vol. 52, No. 9, pp. 24-28
Broicher, H.F.


ABSTRACT:
In April 1998, AIS Sommer GmbH of Germany delivered the first laser-induced fluorescence (LIF) analyzer to the mining industry. LKAB’s Kiruna iron ore mine in Sweden shared the costs and the risk of building the prototype. This marks the beginning of LIF analysis as a technique for quality control in mining and mineral processing. Photoluminescence analysis is well established. In most laboratories, fluorescence spectrometers are standard equipment for quality or pollution control. LIF is being used in several applications, including combustion studies and particle image velocimetry. However, it has mostly been used in laboratory environments.


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