31 May
2007
31 May
'07
10:15 a.m.
--- dwight elvey <dkelvey at hotmail.com> wrote:
Hi
You don't want to melt the other metals first, most
metals will dissolve the gold and just make it
harder to
refine. The best method is with acid. Muradic acid
should work ok to remove the other metals.
Gold melts quite hot. I don't recall any heater wire
that wouldn't melt first. In an inert gas, as was
mentioned
by another, tungsten could be used. Other methods
include things like carbon arc or oxi-acetylene.
Dwight
Yes I forgot about that. You use a small oxi-cet
setup like the type jewelery makers use. Very handy
for small castings and such, but I hate tanks of gas
anywhere near me.
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