The Weiser signal. [volume] (Weiser, Idaho) 1890-1904, 1902-12-10
MT. VIEW MINING DISTRICT
Continued From Page /.

solved by the nitric acid, thus per-
hitting the other useful metals in
the ore to be saved as well as at the
same time rendering the base ore
free milling. But the trouble was
that by the old method of manufact-
ing nitric acid, e., by heating q
mixture of saltpeter and sulphurC
acid, it cost too much By the old
method the acid costs from seven tc
thirty cents pound depending on
the quantity and where purchased
But by this new process, it costs
from two to four mills, that is 2-10
to 40 of a cent per pound only and
hence will permit of teaching most
any ore The average ore cost
about rs cents to 81 25 per ton to
leach the most expensive ores only
costing about So 90 per ton
A brief description of the new
method of manufacture is here
given. The air contains the gases
from which nitric acid is made, those
are nitrogen and oxygen. Now,
when they are united chemically,
they form oxides of nitrogen and
oxides of nitrogen dissolved in
water form nitric acid. Now, heat
and electrical attraction (or as it is
more farmiliarly known and called,
chemical sffinity), are great aids to
chemical reactions or union and so, as
in manufacturing orther products,
heat and identification are used to
cause the two gases in the air to
combine chemically. The air is OBJ
tanned from the air by compressor
which drives it through mechanl-
cal dryer; the dry air is then forced
on into steel tank capable of stand
ing working pressure of 120 lbs.
TO the square inch. When the air
reaches this pressure, the current,
which comes series of specially
constructed induction coils, so as to
transform it into current of great
potential, is turned on and running
through a series of conducting
wires, jumps across eight gaps or
breaks in the wire circuits producing
series of eight constant flaming
electrical arcs, of an intense orange
red tinge, producing great heat and
identification upon the compressed
air causing it to actually burn lie.
combine chemically to the tri and
tetra oxides of nitrogen These arcs
are on moving shaft within the air
tank and are revolved and moved
back and forward through the tank
for about two minutes, when all air
which can be, has combined. These
gases are then passed into
a Transforming tank holding sulphuric
acid, fine silica and water which alb
serbs the gases. The sulphuric acid
is kept boiling and the nitric acid
distills over through worm and is
caught 10 a suitable receiving vessel
All work is really automatic and
hence the whole cost of production
mostly is simply the cost of power.
THIS is virtually nothing where one
has water power and is not much
even where coal is SO or 81 per ton,
or wood is in proportion.
The Rankin company plant is
built to readily be completed to 100
tons of ore daily, but this winter
special electrical machinery could
only be finished in time for no more
than % tons daily capacity. They
expect to be ready to run by Febru
airy or March and intend increasing
their capacity as rapidly as possible.
When increased sufficiently large.
they will be able to mill all low grade
ores in the district and hence ought
to make claims in the district very
valuable. They will put in later.
electrical power sufficient to supply
the whole district with electric light
and electrical power to operate drills,
hoists etc. This will make. with
Fords cyanide mill two mills in the
district. The Macy company is.
we understand, taking in machinery
to do great deal of development
work, MANY prOspectOrs are doino