gold recovery using cyanide free technology

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Gold Processing Plant Using

Cyanide-Free TechnologyDaut – Maranan – Martizano – Mistio

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Outline

• Introduction

• Objectives

• Significance• Scope and Limitation

• Process Flow

• References

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INTRO!"TION

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Raw #aterial

• epit$ermal copper

%&gold'

• porp$(r( copper %&gold'

• grades ranging from )*+

to ),+ g-t .u

Source/ 0ictoria 1old eposit2 Lepanto

"onsolidated #ining "ompan(

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3enguet

•4526672585 metric tons of primar( gold ore

•49,7288)2:+8 metric tons of primar( copper ore

•+ large mining companies ; 3enguet "orporation

 ; P$ile< #ining

 ; Lepanto #ining corporation

• .ccount to ,9= of province>s e<port revenue

Source/ P$ilippine Statistics .ut$orit( %6?)6'

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#ar@et 0alue

Source/ 3enguet "orporation

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Source/ 3enguet "orporation

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Target Product

• 3rig$t (ellow

• Relativel( soft

metalA malleable• In form of c$ips for

easier transport

• "$emicall( inactive

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"urrent Production Process

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T$oug$ c(anidation $as $ig$ (ields2 t$epresence of c(anide in t$e tailings needs to

be treated due to its to<icit( to $umans and

t$e environment*

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Presence of to<ic substances in t$e current

process is an aspect t$at needs

improvement*

T$e proposed process will onl( includep$(sical processing suc$ as grinding2

gravit( concentrating and t$ic@ening of gold*

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Objectives

• To develop an ecoBfriendl( met$od for gold

e<traction*

• To produce t$e target product*

• To utiliCe t$e proposed process*

• To produce side products b( t$e sameprocess %if an('*

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Process Flow