Process of treating metal bearing crushed rock to control respirable dust during transport in the process including a metal concentrating circuit
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United States of America Patent
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Aug 16, 2011
Grant Date -
Jun 17, 2010
app pub date -
Dec 9, 2009
filing date -
Dec 16, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of alleviating dust in the early stages of metal ore processing, such as copper ore, through mining the ore through concentration involves spraying and wetting crushed ore rock and ground particles and dust at least several of a series of locations with a dust suppressant containing major amounts of water plus minor amounts of an additive combination of glycerol and a selected non-ionic surfactant, and passing the wetted particles and dust to a metal concentrator where the additive combination does not interfere with metal concentration yield.
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