the albion process™ at the - coreresources.com.au · isamill grinding plant oxidative leaching...
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Paul Voigt, Glencore Technology ([email protected])
David Walker, Core Resources ([email protected])
CIM Conference 2018,
Stream: A Vision For The Future - Mineral Processing In Canada
www.albionprocess.com
The Albion Process™ at the
GPM Gold Project –
The success of a technology
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GPM Gold – The success of a technology
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Outline
1. Albion Process™ technology
2. Performance of the Albion Process™ at GPM
3. Review of global installations
4. The Future for Refractory Gold Projects
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Albion Process Technology 1. Albion Process™ Technology
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Albion Process™
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The Albion Process is a combination of mechanical and chemical
liberation
• Ultrafine grinding: – IsaMillTM stirred mill:
– FeS2 = 80 % passing 10 microns
– CuFeS2 = 80 % passing 12 – 18 microns
– Ni9Fe9S32= 80 % passing 10 – 14 microns
– ZnS = 80 % passing 16 – 20 microns
• Oxidative Leaching:
– Atmospheric pressure leach
– Gold Applications – pH = 5.5 (“Neutral Albion Leach”)
– Conventional baffled tank (Modular)
– Sulphate solutions - no chlorides
– Supersonic oxygen injection
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Gold Albion Process Flowsheet
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Significant detail of Albion Process
chemistry and design is available in
published literature.
DETOX + TAILINGS
DORE
Water
Oxygen
Limestone
CONCENTRATE
ULTRAFINE GRIND
ALBION LEACH
THICKENER
CIL LEACH
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Albion Process™ - Low Process Risk
All components of the technology are well demonstrated:
IsaMill
o > 130 IsaMills in operation globally
o 17 mills in gold re-grind applications
Atmospheric Leach
o 6 operating Albion Process Oxidative Leach Pants
o Zinc, lead, gold and copper plants
o 700,000 tpa of sulphide concentrate currently processed
Oxygenation System
o >520 HyperSparge units installed in Albion Process and other oxidative leach applications
o Extremely successful at high utilisation of oxygen of 90+%, above design
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2. GPM Project - Albion Process™ Plant Performance
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GPM Gold – The success of a technology
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The GPM Gold Project
• Armenian gold project, owned by
GeoProMining LLC
• Open cut mine - 1 Mtpa ROM, 14.5 Mt
reserves
• Historical grinding & flotation plant
(1976) + CIL plant (1997)
• Oxide ores exhausted 2012, gold now
refractory in pyrite
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GPM Gold – The success of a technology
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Refractory gold plant installed 2012
• Albion Process™ technology installation
• BFS and Pilot Plant completed 2011 by
Core Resources
• Gold recoveries of 95%+ (up from 20%
recovery without Albion Process™ treatment).
• Low skill workforce
• Plant tolerates highly variable throughput,
sulphur grades and climate
• 100,000 tpa concentrate, producing
120,000 ozpa gold
• Plant production at up to 130% of
nameplate design
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GPM Albion Process™ Plant Performance
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Process Plant Overview
• Au recovery without
Albion = 20%
• Au recovery with
Albion = 95-98%
Recovered Water
Flotation
Concentrate
Flotation
Tailings
Oxidised
Residue
BULK FLOTATIONCYANIDE LEACH
(CIL) PLANT
TAILINGS
STORAGE
IsaMill GRINDING
PLANT
OXIDATIVE
LEACHING PLANT
OXYGEN PLANT
PRIMARY
MILLING
LIMESTONE PLANT
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GPM Albion Process™ Plant Performance
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3 years of stable gold recoveries
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GPM Albion Process™ Plant Performance
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Variable Sulphur Grades (<10% to >30%)
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GPM Albion Process™ Plant Performance
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Variable Throughput (100 – 350 tpd)
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GPM Albion Process™ Plant Performance
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Better than Pilot Plant
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GPM Ramp Up – Relative McNulty Curve
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Series 1-2 Performance
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Albion Process Case Studies
Albion Process – Global Installations 3. Albion Process™ - Global Installations
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Albion Process™ Installations
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6 Albion sites
11 ZipaTank
400+ HyperSparge
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GPM Gold Project – Albion Process™ Plant
Commodity – Gold
Location – Armenia
Client – GeoProMining
Refractory pyrite concentrate
120,000 ozpa gold
Commissioned March 2013
Application: Recovery of
precious metals from a
refractory arsenic bearing
deposit within the setting of a
soviet era mining complex
Oxidative Leach Circuit
M5000 IsaMill™ Limestone Grinding Plant
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Las Lagunas Tailings – Albion Process™ Plant
Commodity – Gold
Location – Las Lagunas, Dominican
Republic
Client – Panterra
Complex arsenopyrite/gold tailings
80,000 ozpa gold
Commissioned in 2012
Application: Albion Process required
to recover gold from complex matrix
in tails dam (80% recovery, up from
35%), and leave arsenic minerals
inert
M5000 IsaMill™ being installed
HyperSpargers™ oxygen addition First gold pour from Albion
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Copper Project – Albion Process™ Plant
Commodity – Copper
Location – Africa
Client – Confidential
Copper Concentrate
10,000 tpa copper cathode
>99 % copper recovery
Commissioning late 2017
Application: Recovery of copper and
cobalt from low and medium grade
concentrates in the African region
Oxidative Leach Circuit
First Copper Cathode Production
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Asturiana de Zinc – Albion Process™ Plant
Commodity - Zinc
Location – Spain
Client – Glencore
Bulk lead/zinc concentrate
4,000 tpa zinc cathode
>99 % zinc recovery
Commissioned 2010
Application: Recovery of zinc
from a bulk concentrate as
electrowon cathode with lead
and silver in residue for
smelting
Oxidative Leach Circuit
Sparging systems
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Nordenham – Albion Process™ Plant
Commodity - Zinc
Location – Germany
Client – Glencore
Bulk lead/zinc concentrate
35,000 tpa zinc cathode
>99 % zinc recovery
Commissioned 2011
Application: Recovery of zinc
from a bulk concentrate as
electrowon cathode with lead
and silver in residue for
smelting
Oxidative Leach Circuit
M5000 IsaMill™
Sparging system
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MRM – Albion Process™ Plant
Commodity - Zinc
Location – Australia
Client – Glencore
Bulk lead/zinc concentrate
150,000 tpa of cleaned zinc
concentrate
Commissioned 2014
Application: Selective oxidation
of galena in a bulk concentrate
to chemically liberate lead from
zinc
Oxidative Leach circuit
Off Gas Scrubber HyperSparge system
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4. The Future for Refractory Gold Projects
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The Future for Refractory Gold Projects
Demonstrated Alternative
Albion
Process™ POx
Demonstrated high recoveries ✔ ✔
Demonstrated in current operations ✔ ✔
Guaranteed by technology provider ✔ ✔/☓
Lower capital costs ✔ ☓
Simple equipment + low skills requirement ✔ ☓
Short commissioning and ramp up period ✔ ☓
Can treat high carbonate material ✔ ☓
Tolerates variable feed rate and quality ✔ ☓
High availability and low maintenance ✔ ☓
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Albion Process – Project Development
Study phase well defined and understood
• Scale up now well understood, less sample and testwork required to define
process.
• Phase 1 – Amenability testwork and Class 5 Engineering Study (+/- 40%)
• Phase 2 – Further batch testwork and Class 4 Engineering Study
• Phase 3 – Feasibility study
• Piloting can be conducted if client requires, but not required for process
guarantees.
• Study management can be provided by Core Resources (GT’s laboratory and
marketing partner).
• Basic engineering conducted by Glencore Technology.
Flexible project delivery model
• Can work direct to client or through engineering companies
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Albion Process – Technology Access
Information and contacts:
www.albionprocess.com
Paul Voigt
Manager – Hydrometallurgy, Glencore Technology
+61 7 3833 8500
David Walker
General Manager – Integrated Solutions, Core Resources
+61 7 3637 8100
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Thank You.
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