The Helena independent., 1894-10-17
COLO SAVING PROCESS.
The Invention OF Two Butte Men
Which Promises 10 Be
Success.
A Device Which May Rsvolu-
tionigS Many OF the Ex-
listing Methods
Il Gives EVIdenos OF BEING Practical In
EvSrv PartioulAr And Can ns
Worked ChsAply,

I've Young chemists OF Butte have ap-
piled for . patent on . device which IrAc-
tleAl msialluTeiS,s believe will Tsvolutionizs
many Of the methods nov employed In the
trsAtmsnl Of low grade oTsA and gold ores
especially, says ths Inter kountGin. TAa,
there 10 merit in tha device 10 evidenced by
the fact that the general mAnAEsT OF one Of
ths lafgsst smsltsrs in Bate has PurchAssd
an interest in the spPliancs ana before
long II 10 sKrsstsd that a machine capable
of treating large Anoua, OF ore daily will be
In active operation In Butte. TAs mashins
10 knova As CiArk's Electric ChloTiHato'.
and u 10 claimed 10 be great i'm provsmsnt
upon Ihsia' process Of ohlorldiIlng gold
ores. IL was seoastEue,sd' and tested at the
Western lion wo ks during the pas, sum-
msr.
Ths appara,ul consists OF q cylinder sir-
teen feet long BY two feet In diamstsr made
OF slaves tvo and a half inches thiok and
hrmly bound as intervals along its length
By iron bands. The cylinder 10 30 osn-
sirucisd that the upper half can be removed
when necessary TO repair the Interior.
Passing through this cylinder 10 a wooden
oS,sgon shaft provided with stufibe boxes
and bearings a, each end. luto this shat,
10 mor,issd q series OF plrs q spiral lins I've
entire length. Ths pins perform the Office
OF sgitators and s!so convey the ore pulp
In the cylinder 20 bs shloriiizsi. In the
interior Of the cylinder. upon tho bottom,
extending It's length. 10 = carbon plats, to
which 10 connsossd she positive wire from
the dynamo. Attached 10 both siiss OF ths
cylinder. upon The lower half are boxes
The bottom OF the boxes are four inchsa
above aud on q line With the carbon
plates In the interior Of the cylinder.
which ACT as anodss. About two inches
above the bottom of ths boxes . seriss OF
holes or slots are cut through the cylinder.
in which diaphragm OF any suitable
IN ltefial is placed TO Keep tn. Pulp
from passing into tho boxes. but Sufficiently
porous 10 allow the current TO pass with ss
little resistance ss possible. In the bottom
of the boxes 10 placed q bath of mercury,
about one inch deep. 10 set ns the cathode,
and connected by I'm mersinga q piece OF cop
PER plate. to which 10 attached the negative
wire. Ths above 10 q description OF but
one section. of which all others In the
series are similar. They are arranged on
an inclined plane. so that the ore after
travelling the shtiro length OF the upper
cylinder disshsrgss into the next one be-
meath. and after passine thTough IL 10 dis
charged in,o the next. and SO on until the
capacity OF the mill 10 attained. say
for twenty tons of twelve hours retention
for each ton. TIE pulp is then dischargs cd
into flteFins tubss and Altered and washed
ana the gold proeipitstsd br Proto sulphats
OF iron or sulphurous and sulpha;sttsd ny
drogsn gases.
The electrical process of the apparatus is
conducted Es follows; IL 10 we'll. known
fact that II q current Of electricity 10 passed
through q ISOLATION of salt (soIium chlorids)
ihe chlorine and oxygen comes of at the
positive poles. while the sodium and hydro
gen Is libeEstsd at the negative electroie.
| The apparatus Ia so eonstruotsd that the
ohlonne comes off in the cylinder under
ths ore In q nsseent state. attracting any
FREQ coarse gold which settles upon the
oarbons by the agitation of the es, whils
shs sIesss Of free chlorine dissolyes the
ano gold suspended In the body OF the ore.
The hydrogen and sodium hyd'ate comes
on In boIss outside OF the cylinder aud
away from tho or,. and Ia prevented 20 q
very large extent from combining With tbs
free chlorine Ia the eJlinds'. by tho porous
diaphragm between tho boxes and eJlin-
ders.
by the above construction the chlorine
which is liberated in the oy Under in the
ore remains la . comparatively free state
aud continues to Aeeamulate and act upon
the gold In the ore. Ths cufTen, Of cleo
tricity dsoom poses part Of the chloride OF
gold formed, and deposits II upon ths msr-
curry in the outside boxes where 10 forms
an amslshm. which Is easily obtained,
willis TIE gold that remains in solution
passes with the pulp through the lAst see
zion ana into the fltering tanks, where II
Ia obtainst as previously stated. Ihs Ap-
paratuI has bson tsstoi hloaGslde OF the
barrel ehlofinator with the 9 me eharQs
aud audsr similar conditions, aHd in evsry
instance RAvs higher saving than "lhsis'
| Pfocsaa" did. While II has never bssn
tested uton largo practical scale. IL gives
evidence OF being practical in every uat-
tleulsr and will be much cheaper.