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Zinc oxide packaging and disposal

We are a ZnO manufacturer near Chennai (India) and need to pack ZnO powder into bags (25 Kgs, 500 kgs and 1000 kgs)through automation. is it possible?
When we heat Zinc top dross, because of presence of Aluminium, it is getting very viscous and unable to remove/separate aluminium from zinc.
is there any flux available to remove aluminium?

Partha Sarathy
Industrialist - Chennai, Tamilnadu, India
October 19, 2009

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