The Wallace miner. [volume] (Wallace, Idaho) 1907-current, 1914-05-21
.FL0TAT|ON PROCESS AN IMPORTANT
FEATURE OF MILLING OPERATIONS
SUCCESS THE THE PROCESS
ING INSTALLED OTHER COMPANIES
RECEIVERS MUCH

, The introduction Of the Callow flo
tation process into the Occur d'Aene
district by the National Copper Min
ing company seems to have marked
the beginning of a new era in milling
methods and will result in saving Of
much mineral value that has hereto
fore been lost. In the National the
flotation process is said to be doing
more than Its owners claimed for 1t,
and 1t Is reasonable to expect that 1t
will improve as the operatives become
more familiar with the principle Of the
process and the peculiarlties Of the
ore. 1t Is understood that the Ma
tional Is now saving very close to
80 per cent Of the values in the ore
and that about half of this Is recov-
cred in the flotation process.
At tho Morning.
The problem of saving the zinc in
the Morning ores is one that has occu-
pied the attention Of that company
for several years, and it's final solu-
ton now seems to have h~en found
In the Callow flotation process. Ex-
tensive experiments have been made
by the company and every process
that promised results has been tried
out, with the result that the Callow
system Is conceded by the company
20 h,,y ,A1,
periments Of late have been conduct
ed and supervised by II. A. Guess of
the American Smelling & Refining
company, an expert In this line or
metalurgy. The first consignment of
material for the new plant has been
received and 1t Is now being installed
1t takes the place of all other zinc saw
ing devices except the McQusten tube
cess, but 1t Is impractical to obtain
sufficient capacity to meet the require
ments Of tho Morning.
The Frisco.
The Frisco failure may now be
turned into success through the Cal
low flotation process. supplements by
a magnetic separation of the iron and
zinc similar to the method now in use
at the Success. After two months
run without shipping a car OF ore.
followed by the closing down Of tho
mill and mine. 1t Is plainly evident
that the Frisco mill Is totally un-
adapted to the treatment Of the ores.
The ore carries a large percentage Of
iron which renders 1t impossible to
separate from the zinc by concentra-
tion. A combination Of magnetic sep
aration which will remove the iron,
and the Calow flotation process seems
to fit the situation at the Frisco. and
| 1t is announced that this plan will be
adopted.
The Success.
A great advance in economical mill
ing and marketing ore was made
by the Success Mining company
when it installed the magnetic
separator and the drying CYL
inder, which removes all moisture
from the shipping product. But like
|all other companies having zinc bear
ing ore, 1t is still suffering a consid-
cradle loss and to overcome this Is
matter Of much concern to the man
|agement. The Callow process Is be-
lieved to be the solution Of the trou-
Bile. The inventor of the process vis-
tied the Success mill recently and
expressed confidence that his process
would eliminate the loss to great ex-
tent and at an early date the Success
company will add this feature to the
milling plant
The Hunter, Too.
And now the Hunter company is
looking toward the Callow process ~
la means of increasing It's profits. 1t
seems that in the upper workings of
the mine, and particularly in No.
tunnel, there Is an extensive shoot Of
gray copper ore which runs very high
in silver with little lead and lit
tie copper. 1t was found impossible
to recover the value Of this ore by
concentration, for which reason it has
been left in the mine until such time
as a practical method of treatment
had been found. 1t is now be-
lieved that this method has been
found in the Callow flotaticn
process. In fact. 1t Is stated that the
Hunter company has closed a contract
with the Mine & Smelter Supply COM
pany Of Salt Lake. to put in the flo