METHOD OF SEPARATING DIAMOND-CONTAINING MATERIALS Russian patent published in 2008 - IPC B03B13/06 B07C5/34 

FIELD: enrichment of minerals.

SUBSTANCE: method comprises exciting luminescence by means of pulse Roentgen radiation with a pulse duration sufficient for exciting long-term luminescence components, measuring intensity of the long-term components of luminescence after the end of the pulse with a time delay sufficient for decay, comparing the value obtained with the criterion of separation of mineral, and repeated measurement of the intensity of the long-term components of luminescence in a time interval that does not exceed the time interval between the exciting Roentgen pulses. As a criterion, the rate of luminescence relaxation is chosen. The rate of luminescence relaxation is determined from the difference of logarithms of intensity of long-term components of luminescence.

EFFECT: improved quality of separation.

2 cl, 5 dwg