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MAGNETIC SEPARATION OF COLEMANITE FROM ORE AND TAILINGS OF KESTELEK (TURKEY) PLANT

AUTHOR/S: ALP, I., ÖZDAĞ, H., DEVECI, H., YAZICI, E.Y.
Sunday 1 August 2010 by Libadmin2004

4th International Scientific Conference - SGEM2004, www.sgem.org, SGEM2004 Conference Proceedings/ ISBN: 954-918181-2, June 14-18, 2004, 267- 276pp

ABSTRACT

This paper presents the results of magnetic separation tests for the recovery of
colemanite from the ore and the tailings produced in Kestelek (Turkey) Processing
Plant. Crushed ore (30.76% B2O3) and tailings (31.76% B2O3) samples were wet
screened and classified into different size fractions. Size fractions coarser than 75 μm
were subjected to three-stage magnetic separation using a high intensity permanent
magnetic separator.
The mineralogical composition of the ore and the tailings appears to enable
gangue minerals to be removed by magnetic separation. Under the test conditions a
final colemanite concentrate with a cumulative grade of 41.29% B2O3 were produced
from the ore at a recovery of 96.76% B2O3. The results also showed that colemanite
reported to the tailings during the processing of the ore could be recovered into a
concentrate having a cumulative B2O3 content of 43.73% corresponding to a B2O3
recovery of 95.08%. The concentrates produced from the ore and the tailings appear
to be of sufficient grade to be marketed.

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