Download - 3 Leaching Methods & Equipment
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YDROMETALLURGYYDROMETALLURGY 3 – Methods & Equipment 3 – Methods & Equipment
Fathi HabashiFathi Habashi
Department of Mining, Metallurgical, and Materials EngineeringDepartment of Mining, Metallurgical, and Materials EngineeringLaval University, Quebec City,,CanadaLaval University, Quebec City,,Canada Fathi. abashi!arul.ulaval.caFathi. abashi!arul.ulaval.ca
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d!ometa""u!#d!ometa""u!#
Solid-LiquidSeparation
ConcentrationPurifcation
Precipitation
Oxidant Leaching agentre
Solidtowast
Solution
Pure Metalscompounds
Precipitantor electriccurrent
Leaching
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Lea$hin# Methods & Equipmentea$hin# Methods & Equipment
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Leaching in"situ $Leaching in"situ $
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Leaching in"situ %Leaching in"situ %
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Lea$hin# in%situ ea$hin# in%situ
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Leaching in"situ &Leaching in"situ &
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Lea$hin# in eaps (ea$hin# in eaps (
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Lea$hin# in eaps 3ea$hin# in eaps 3
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Lea$hin# in eaps ea$hin# in eaps
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Lea$hin# in eaps *ea$hin# in eaps *
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Lea$hin# in +ats )ea$hin# in +ats )
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A#itation Lea$hin##itation Lea$hin#
# ' (pen vessel# ' (pen vesselMechanical agitationMechanical agitation
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A#itation#itationLea$hin#ea$hin#
3 - Closed vessel3 - Closed vesselmechanically agitatedmechanically agitated
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A#itation#itation
Lea$hin#ea$hin#) " *neumatic) " *neumatic
Oreslurry
Wash waterCompressedair
Centralopen tube
Outlet
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/!essu!e Lea$hin#!essu!e Lea$hin#
In absence of air or oxygen .In presence of air or oxygen .
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Auto$"a-esuto$"a-es
# " +ertical# " +ertical*neumatic agitation*neumatic agitation
Shield
Pulpdischargetube
Opening forsteam inlet
Opening forsteam exit
Opening for
pressure gauge
Opening forpulp inlet
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Auto$"a-esuto$"a-es
$" +ertical$" +ertical*neumatic agitation*neumatic agitation
PulpPulp input
Level indicator
Air and H SO !
Steam
discharge
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Auto$"a-esuto$"a-es
% ' +ertical% ' +erticalMechanically agitatedMechanically agitated
Acid
"anhole
Outlet
Over#ow
$nlet
Oxygen
%ubberlining
&rain
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Auto$"a-esuto$"a-es( % o!i0onta" % o!i0onta"
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Auto$"a-esuto$"a-es) % o!i0onta" % o!i0onta"
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Auto$"a-esuto$"a-es3 % o!i0onta" % o!i0onta"
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Auto$"a-esuto$"a-es % o!i0onta" % o!i0onta"
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Auto$"a-esuto$"a-es' – o!i0onta" . !otatin# – o!i0onta" . !otatin#
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Auto$"a-esuto$"a-es* – o!i0onta" . !otatin# – o!i0onta" . !otatin#
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Auto$"a-esuto$"a-es( –1phe!i$a" . !otatin# –1phe!i$a" . !otatin#
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Auto$"a-esuto$"a-es) –1phe!i$a" . !otatin# –1phe!i$a" . !otatin#
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Auto$"a-esuto$"a-es3 –1phe!i$a" . !otatin# –1phe!i$a" . !otatin#
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Auto$"a-esuto$"a-es( – /ipe"ine – /ipe"ine
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Auto$"a-esuto$"a-es) – /ipe"ine – /ipe"ine
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Auto$"a-esuto$"a-es3 – /ipe"ine – /ipe"ine
'lash tan(s
Steam)Salt
CondensateOutlet
Heat exchanger
Preheater
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2a in#a in#/!o$ess (!o$ess (
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2a in#a in#/!o$ess 3!o$ess 3
,levation
Plan
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Mi$!oo!#anismsi$!oo!#anismsOxygen CO Oxygen
PO -.!
A/ueousphase
,n0ymeS . 1 O
,n0yme"icroorganism
S . " 1 "S " 1 1 S .
Sul2de mineral
SO .
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T A451 A451