Fine pyrite removal from coal using a placer ore jig
- Ben Franklin Technology Center, Bethlehem, PA (United States)
- Pennsylvania State Univ., University Park, PA (United States). Mineral Processing Section
A placer ore jig, typically used to recover fine gold, tin and diamonds from alluvial ores, has been modified to remove fine pyrite from minus 6.4 mm ({minus}1/4 inch) coal. In parallel tests, it proved to be far superior to two conventional coal jigs, the Baum and the Baum-feldspar, in removing fine pyrite from coal. The Pan-Am placer jig was found to remove essentially all of the +28 mesh pyrite and from 99% to 90%, decreasingly, in the 28 to 200 mesh range. This jig also showed a superior performance to the Baum-Type jigs in removing fine coal from its associated refuse. The superiority of the Pan-Am placer jig is related to the strong emphasis given on the suction stroke and, hence, on consolidation trickling, whereas the Baum jigs principally emphasize the pulsion stroke during jigging.
- OSTI ID:
- 110005
- Report Number(s):
- CONF-950002--; ISBN 0-87335-130-4
- Country of Publication:
- United States
- Language:
- English
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