Wood River times. [volume] (Hailey, Idaho) 1882-1915, 1888-07-20
cent, lead and 10 ounces of silver per
ton, worked by elcctro-ch colonization

tOIS WVtACN " SA~os'S S"'o'' ""NAOAA
process.
Cost of removing zinc per ton of ore 8 s 50
After dressing out the lead and
gangue, and removing the zinc,
the ton of will have been
reduced to 1853 pounds. The
lead that was dressed out
now be added to 1t, and we have
1853 pouads of pulp plus SAT lbs
of lead sulphide, equal HOO lbs
Of ore in a condition for smelt-
ing equal to a frst-class carbon.
ate ore containing all of the
lead silver and iron Of the or.
iginal ton of ore. But now the
percentage of lead has been in
creuAed to 2727 per cent. The
cost of smelling will then be- by
the schedule, $3.50 per ton But
we only have 100 pounds there
fore the smelling charge will be
IS per cent. of $50, eoual...... 06
Total cost of treating for zinc and
smelling ton of ore. IS sc
We get in return 62O pounds zinc
oxide at, say cents per pound.
Thirty cents per unit for the lead,
of which there is 800 pounds. 90
And of silver II ozs., ut New York
quotations, less per cent, say
90 cents per o. net-l2 ozs. at
w cents. ..........'..... II Va
Total value of product. ........ $40 81
Less cost of production.., 8 Sc
Net val. of product at Leadville. ss7 os
If we place the cost OF shipping
zinc oxide to market at, say SIC
per ton or $40 per ton including
packages, we shall have to pay
for the $40 pounds of zine OK
Which shows net profit per ton of
| ore. ........' ........'..''..'''. % 10
| For above grade of ore which here
tofore had no value we shall
| have for so tons per day profit - ~
| or. .............. ........>... 80 90 90
And for 800 days in the vear....... 476,'oo w
1t is our impression that the fore
going statement of the cost Of treat
ment by this method is sufficiently
clear. That i. will require no word
of explanation from US. 1t was pre-
pared by the inventor, himself, and
when we say that similar calcula-
ton of the cost was prepared by Mr.
Stevens, which reduced the aggregate
cost in a material degree, it will be
admitted that the estimate here given
is intended to be amply conservative
Mining men can readily make thel
own comparison with the ordinary
cost of smelling any peculiar grade Of
ore with which they may be familiar
Now regarding the zinc oxide al
, an article of commerce: The ordi
nary domestic article is quoted a
about Al cents per pound. The pro
| duet of this method, however, is as
{ serted to be of much higher grade
t In support of this association refer
ence is made to DIR. Moore of New
York, chemist for the Passaic lin
Co., who is said to have reported i
, equal to the best "Paris Red Seal,
!, which is worth 10 cents per pound b
the carload.
Regarding further practical test @
e the Electro Colonization process
test the results of which may b
D scrutinized by our readers, in perso
e we are glad to be ale to state thu
d small plant is now in process
l. erection at the Omaha and Graz
smeltpr, in Denver. 1t is beln
}. erected after instructions furnlshe
/ by the inventor, MIR. Sa!ser, and III
t der the immediate supervision {
# Professor Du Bots. 1t will have
n capacity of eight tons per day, b'
for the purpose of testing its meri
e in small lots, but one or two tons p
If day will be treated.
l. These experiments will be watche
y with interest, and in the meantlu
4, some Of our mine-owners mig
10 make arrangements to have ties
.e made at an early day.