Wednesday October 8. 1912
IO
THE SUMPTER MINER
'A
1 1
t
i
REVOLUTIONIZE
SMELTING.
Garretson Furnace Given Prac
tical Test at the Crofton.
A reeent telegram from Vancouver,
Ilritlnti Columbia, says: Interest in the
milling world 1h Ih'Ihk centered in tlm
experiments iiiiw K"iK forward with the
(larriilHciii ftirnnce at tliu Crofton smel
ter on Vancouver InIiiihI. .Indue Heed
and coIUmimii'h, Messrs. Hurley and
l,iiidiilste,'of I'iltsbiirK, havti lieeii at
tlm smelter to witness tlm further tests
of tlm iiiiw fiirnnc.es, which ure expected
to revolutionise tlm smelting industry of
America.
Tlm Invi'iitorM nru (J. N. mid K. 0. (ar
rutHon, fiitlntr and win.
Tlm (iarri)tHon smelter, If us successful
hh tlm II rut day indicated, will, it Is said,
cut il.tun tlm cost of nimltiiiK to one
iinarter of what it In today. It will do
away with tlm necessity of using coke
and will iiImiIIhIi the separate converting
plant. Ity It tlm throe present pro
cesses of smelting are combined and tlm
whole operation taken place in one itppa
rains.
V. C. (Sarretsnii, seakiiig of tlm in
venlion, said:
"It is 11 little dilllcnlt to explain our
nyittwin in a way intelligible touliiyniun,
lint I may nay that tlm ordinary process
of smelting involves the roitHtiiiK and
smelting of ore iih separate processes to
tlmeonverlinKof it. The smelting pro
cess Ih much tlm same in our furnace,
hut we utilixe tlm sulphur and iron in
the ore hh fuel, which nave the cost of
coke. In ordinary pyritie. ore there aro
an many heat units hh in coal.
"Further, we do away with the tout of
the converting plant, which irt the mot I
exH)imive Hrtioii of h HineltiiiK plant.
In eases where tlm ore Ih right where it
contains the imccMHary proH)rtiouH of
sulphur and iron we do away with
carbonuceoiiH fuel and the cox I of the
tlarretsou process Ih, roughly, just one
fourth the cent of ordinary smelliuu.
"In our furnace we take the raw ore
an it comcH from tlm mine, charge it into
the top of the furnace anil take out at
the bottom blister copper, which Ih
ahout Ut Nir cent metallic copper. After
that, it Ih only ucccHiuiry to retine it
elcetrolytieally to eliminate what linpu
riticH remain and separate the gold uud
silwr.
"I'he dllllciilty with the old proeeHH
Iiiih been that a high grade priMluct could
not lie made without making a rich slag
ton rich in mineral to lie thrown away.
AIho it wan mil considered miskIIiIo to
convert in a waterjacket converter with
out liiiiui! it with lire clay and crushed
itiarlx, which Iiiih to 1st frciiicutly re
pliuvd and is nil eNpensixe method. A
number of HjcteniH oi introducing silica
into the coucrlerH have been triad,;
and they hae Ih'cii lined with refrac
tory material hiicIi iih inagiieHla, but it
wan found dilllcult to nitrodiue the
iieceHNir.v sillcu mi iih make it combine j
with the oxide of iron formed in con- j
veiling. I
"We obviated thin tlilliculty by con-1
verting underneath the charge in the
furnace, feeding an excei-n ol dHca in I
with the charge and converting by a row J
of tuyeri'H plated around the furnace. In
thin way we prevented all of the sllicii
from being taken up at the lop anil it in i
forced down by the weight of the charge '
above it iih silica, into the matte, whcic j
it Ik required. '
"I'yntic Hiueltlng ih an established
fact. The reiiMin it ih no more in line ih
that in order to make a sutlicieiitly high
grade matte it in cHHeutial to run the fur-
'ulogiip. If the furnace is kept in good
'Hiueltlng ('liditioll the product in ho low
grade that it Iiiih to he put through the
i smelter aaln. In our furnace we lire
not piirticular what grade of matte we
get, In en nee converting in carried on in
I the Hiium vessel.
j "It lias always been said that If you
iiuil.c a high grade product it meaiiri a
rich dug, hut wecan make a rieh product
and get a clean slug, because the making
of the rich product Ih carried on below
the nlng level in the furnace, and before
the Hliig getH out of tlm furnacu it it
cleaiiHcd by the low grade matte falling
, and being reconverted
"We a-o creating nu excess of heat by
converting immediately under the smell
ing zone of the furnace. It Ih umially
considered necessary in pyrltiu smelting
to have a hot blunt, hut we avoid t hut by
putting an excess of hlr in the convert
ing tuyeres and nllowing it to puna
through the hot matte and slag into the
smelting xouu above, being heated in its
pannage.
"The (inrretson furnace ban hitherto
not Ih'cii a successful cotiinmrclH) ojiern
tion, but Hiilllcient experiment has been
made to show tliut we are mire of our
ground. Thu furnace Iiiih been built for
several smelters, but none have been in
operation up to the.prcHent."
Mines Are MacU, Not Found.
Very few people, iih a general thing,
have but a vague conception of what con-HtituU-H
a mine. Many bold to the idea
that a mine Ih found when a ledge or
Hiirface cropping Ih discovered; and, if
they are interested in any way In the
new discovery, they exect dividends at
once, and condemn mining in all its
branches if the proerty is not remuner
ative within a few months after work
has begun on its development. To all
such The Mining Review would say:
"Have nothing at all to do with mining,
iih, with this impression in your mind,
you are doomed to d!siipKintment."
The man who exiects dividends from a
proHpcct after it has been worked for a
few mouths is out of his class, and had
better devote bis tfmo to digging (iota
toes or measuring calico, as mines are to
he made after the prosH'ct is found, and
it often takes four or the years of steady
work and extensive development liefore j
a proHKi't can be rated as a producing
ami paying mine, no matter bow rich
and strong the veins may he at the sur
face. Salt take Mining Review.
The celebrated titind's "the beer of
good cheer" always mi draught at Dun
pby's The Club.
If in want of clothiui!, nee Nelll Mer
cant lie company.
No headaches from tilant Miwder.
FRED G. LAWSON
S
Optra Komi Stock
PhMi 345
Sunptir, Oregon.
WHOLESALE AND RETAIL GROCER
Wi mki i Spioiilty of Supplies for Miiirs.
Hiinzi's Cilibntid Cmmd fioids ni i
Fill Lint of Graoiriis
American Brewing and Crystal Ice Co,
E. SIBER, General Manager.
Manufacturers of
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Also Ice Made of
Distilled Water.
BEER
The most modern equippecTplant in the state.
All orders promptly attended to.
Telephone, Main 19. BAKER CITY, OREGON.
v
A. P. GOSS, President
GEO. H. TRACY, Cashier
& Bank of Sumpter 3
TrtMttt t Soinl liklf )
Interest Allowed on Time Deposits
Oralis Jiswn on j p.iiu of the aoiIJ SpcJul attention to .oile:tions.
Safety Deposit boxes for rent.
SUMPTER, OREGON
k'''"
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