Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1906-01-13
BOOSTING FOR
UTAH COPPER.
An Engineer Furnishes Data On
Costs Of Producing Ore From
Bingham Mine.
BIG TONNAGE BLOCKED OUT.
So Vast That II Need Not be tonsid-
cred by Present GcDeration---
The Min Results.

A circular. intended for Utah Copper
shareholders and prospective buyers Of
that stock, has been issued by well
known eastern brokerage firm. After
giving a detailed description of this big
Bingham mine, some interesting figures
are given on the cost OF production. Tho
writer, who Is said to be an engineer
that has spent good share Of his time
in Bingham for the past year. says
AS to the tonnage that can De mined
in the property, there is little need for
discussion. The amount IL so vast that
its amount need not be considered bv
the present generation. The company
can mine and treat up 10 It's expected
product of 1000 tons day for a gener'
alton and still have abundant ores for
the future In the tremendous minef-
allied monzOnite bodies which II owns
and has partially explored.
ores to mine a million tons year
for many years are now blocked OUT.
am acquainted with most OF the lafg-
est ore bodies OF the American conti-
nent, iron and copper, and can truly
tune to see such mass Of economically
important mineral anywhere as those
monxonite bodies OF the Utah Copper
and the Boston Consolidated which arc
one and the same deposit. The expert
ment which In here being tried IN these
low grade ores IL bound to have very
important effect upon the metnllurgy Oh
copper. and 10 bear with especial weight
on the future OF the Bingham camp. II
would seem that those ores are de-
stlned TO play a more important part In
the future OF the camp than the richer
sulphide bOdeis that are now chiefly
mined,
COSTS OF PRODUCTION.
"rhe mine il in such shape UNDER
ground that It will take but very little
work to place 1t In shape for the min
Ing OF such tonnage ut low costs,
AS TO costs at this mine. II Will be wise
to figure about as follows, as pracu-
cally minimum costs
Breaking and loading by steam
shovel ... .............,,,...,,. 20
Freight to Garfield beach...n.r. 80
Milling and ore dressing ......,.... 30
Reyerberatory smelling ...".,,". 10
Refining interest and other charges 20
Total per ton of crude ore......"N.6Q
If the saving through the mill eau
be made continuous at 20 per cent, ana
there should be no difficulty about
that, this crude ore Is worth. with cop
per at 10 cents pound. A25 per ton;
with copper at IL cents q pound this
ore Is worth s3.4O per ton. The mar
gin OF profit shown by these figures Is
.t..,..s Ate,b and titf pnttrDu nv Itself does
not estimate that II can make copper
for less than costs OF about s2.l5 per
ton Of crude ore, or about cents per
pound. This, 10 be sure, includes all
charges, Office expense, freight on cop
per TO refinery and market, etc"
Referring to the results being ac-
complshed at the mill the writer con-
times
THE concentration runs from 20 to %
into one and the concentrates average
from 26 to 80 per cent. copper, and
carry from So TO 81 gold and silver per
ton. Thus ton ~ concentrates Is
worth. at the present price Of copper
CIV cents) about 500. These expert
ments with mining and milling have
shown that the rock can be treated
AT low costs. and that It will be easy
10 make large profit, II copper remains
NJ an average price.
about 30 tons Of concentrates per
day are being made, or n daily prod
uct of $4,000 slightly more or less. It
will be noted that the loss IN concern
tration. that H. the amount Of copper
carried over into tailings, is from u to
Y per cent. With a larger and more
economical mill. not pushed TO its ca
pacity. and without experiments. the
saving should be IN the neighborhood
OF 20 To 10 per cent OF the copper con-
tents az shown by analyses, or % to 2S
pounds per ton OF ore broken IN the
mine