The Dickson County herald. (Dickson, Tenn.) 1907-1979, 1920-08-06
Fortunes Extracted Daily From
Froth by Treatment Of Low-
Grade Ores.
GREAT SAVING or COPPER
xHc~ssdoe ~ Ceiield ard oruanse
Chemistry Necessary fer she Fto-
tafien Mlltrrsn--skiiifal
Work for q Profit.

New Fork. .Rittifns are heing sdisd
10 the worlds wealth by the forces 81
work ia the slap bubble, The Rotation
method u mineral separation, ~
which EVERY day In the rear fortunes
are literally extracted from fro'h, IL
aow exercising No ppwrrfui al inha'
enc 90 uiiHlng operations 10 this ard
ether countries that, according 70 60
lapbis university authorities, The IN
turs ~ copper production. md there
fore ~ the electrical iniastry. largvty
hinges un babhle@
The process " orr sT,ncrHtrsrnr has
afwhss flsfi estfssttF-sf fYygTsr~tnsss 10
mlnlng engineering scbnols AMI 'hs ITO
tHtion process + q xndlug factor Ia
laboratory practice ~ Columbia SS"fs
the oke .sra4aine lNoors'ory Z, poa uu
i~crgolbe cousiir rahis expansion
According - both. r"an Gyogrp II
rrsrnm ~ me Columbia I hpol ~
Mines Engineering gnt t1.si'~try nR'
Arthur +, TpgEpr professor ~ oet
dressing the advent - tiofRtiun has
worked q revolution ia miuiag Farth
obs,
'The word Fnhtie' used ia cunnec.
,ion with mlninS r%ropsrt ~ Formerly
REFERRED q q kira - huRprtai msnage
mcnt Witch r,s,lt hardly he tolerated
IN thrsr dry ani sober DAYS. best IN the
last Few Years tuhhies have taken 90 =
new and more Important si%FtiasrHrf
for ihe lprrer taT' ~ 'he mining ~.
dustry" said Deem l'cgrhiH. '"Fhe mars,
Important problem ~ the mining On.
sineers Il usually how 80 concentrate
the mineral IN low grade ore a. stc,
an extent that the working ~ ,hr ors
ain no profitable. a process has t-'cr
developed whirh applies %paftlra'ar'y
20 Rll salrhlis ores ard these lnrfri,
most ~ 'he copper, zine aud lead nre,
In witch the ores MAY ~, teautifuil,
concentrated hf the action os ans hnh
hics ~ mr. attaching themselves 10 she
Particles NJ mineral finely ground nnd
mixed with water
Separate Sand ard rtnih,
~rhe bubbles with the sulrhide min
sral then rise ~ the top - a thick
fro.h while the sand and other worth
icss material sink 10 the bottom ~ ths
vessel This fota'inr procrs~ has not
only made usIch more profitable thf
working ~ he better grade ~ eorper
s'nc and lead ore, hu, has slSn mode
very profitable tho working " ore"
which previously could net inve beer
hnutllrtl without actual less,
The whole sscre, ~ TIE huhhl~s "
air gathering NJ the mineral particles
and leaving the SIND depends urrr
treating the finely crushed ore IN water
with n ~ various chemical shh.
stances. among them oleic acid and
pine oil Only u very small anio'in' ~
The oil Ia necessary. less than ! per
cent hv weight ~ the amount of min
eral ths, - IN the ore.
After the proper rvngen' has hfer
added IL the water and the finely
crushed orr, air IL Introduced tntn II
either hy heating II In With n stirrer
or by forcing II IN through fne pores
Ia the bottom ~ the vessel. "r ANY way
tn which ~ hr'ns dRe bubbles ~ The
afr into intimate contact with the fne
particles NJ the ore, The separation Is
maryclcusiy compirts the mineral gu
Ing 10 The tcp IN bubbles, forming 4
thick frhth. which u ~collcT".rl nv suit,
nhle Arrangements, while the and aud
other gangue material settles quite
clean ~ any Washable mineral TO the
bottom ~ the yrssrl.
"ot course the process IL ms,'e 20
run c~nstinHnusls HR,l n same n4iIiA a.
much p, 5000 tons n mineral IN fra'h
"a separated eavF, Gay Altogether In
tots tSere were tsltsNtsS y ~ ore
treated ty the r9'atieN process
at may 'rp}, te ssA thar the rutIr>