The Pioche weekly record. [volume] (Pioche, Nev.) 1877-1900, 1897-03-03
THE NEVADA LINING comeAaY.


Its Work veY Promising and the ut,
of Phoebe Assured for Anatt
Year
Through the courtesy of Mr.. h
l.. Godbe, a resentive Of the Record
was shown through the workson the
Summit, and the manner in which
the ore was treated explained. As
the process is entirely new being
one Of settling instead Of filtering-
and the only one Of its kind in opei.
alton in the United States, il vii be
of some interest to the mining public
to have an insight into the same
The ore is first crushed We. with
a stamp battery and then run over
Wiley concentrators andthe concen-
trates being dried on steam dryer
they representing As per cent of the
value of the ores. The tailineG from
the concentrators are run into large
agitators, arranged and fitted with
muller that is raised and lower ed by
hydraulic pressure While the null
Ter is raised and at rest; the tank
acts as a settling tank to settle of
the water. The tank is fitted with
filter bottom and after settling and
decanting all the clear water off the
top, the remainder Of the water is
sucked off by vacuum pump through
the filter bottom. The caynide solu-
ton is then added, the muller is
started and lowered thereby work
ing all the ore up in agitation. This
is kept up for eight hours till all
the gold and silver is dissolved. The
muller is again raised and stopped
the pulp is allowed to settle and so
per cent of solution containing the
charge is decanted off clear from the
top, while most of the 20 per cent
remaining is sucked through the
filter bottom by means of the
vacuum pump.
The solution containing the gold |
and silver is then run into another
tank and from there through long
boxes, filed with zinc shavings where
the gold and silver is percipitated
on the zinc. The gold and silver is
recovered from the zinc shavings by
washing on a screen-the gold and
silver dropping through the screen
zinc shavingsremaining on top.
After all the solution isIdrawn from
the agitators, little water run
in; the muller is started and lowered |
thereby, working the pulp all up in
suspension again, plug is drawn
and the charge is run into the failing
pit. Ninety per cent of the values
of the ore are extracted, by the two
processes. 1t does not make any
difference how much talck or por-
phyry the ore contains the precipita
ton and per cent of extraction is
about the same. This is something
new, as heretofore tailings of ores
that contained large per cent of
talck had to be run into large pits,
allowed to settle and dry, and then
worked over. The above process
does away with the second handling
and with just as high per cent of
extraction.
The mine is looking exceptionally
well and enough ore is blocked out
in sight to keep the mill running for
the next ten months at its present
capacity, which is about 30 tons per
day. The mill employs some Is
men and the mine about 25 more
making 40in all, the most that has
been working in Phoebe at one time
for the vast three years.
As the New Year has opened much
brighter than last year did, let us
consider it the good omen land wish
the Nevada Mining Company all the
prosperity that we would like to lay
claim to ourselves.