Minerals Processing:

Gold Projects:
Fraser Osborn has undertaken:CIL, CIP, Flotation, Gravity and Heap leach projects including:

Simberi Gold Expansion Project
Plant Expansion to 3.5 MTPA + 10.5 MWatt Power Station Replacement + Fuel Storage:
Fraser Osborn is undertaking the EPCM component for the expansion of the existing oxide gold treatment plant on Simberi Island in the New Ireland Province of PNG.
Simberi Gold - Fuel Storage
Simberi Gold Expansion Project
Power Station Replacement + Fuel Storage
Simberi Gold Sag Mill

Bolivian Gold Mine

Fraser Osborn recently completeda feasibility study for a 2.7 Million tonne per annum gold mine to be built on the Altiplano in Southern Bolivia

Lihir Gold Mine
Engineering, Procurement + Construction Management for the installation of an additional 38 metre high compression thickener to increase density of autoclave feed.
EPCM design and construction of a gravity concentration and high intensity cyanidation circuit.

Nolan's Gold Mine
Fraser Osborn undertook the design and construction of the 2MTPA Nolans CIL Gold Processing Plant.
Initial throughput was 2Mtpa with primary and secondary crushing, sag mil ball mill and scats crusher.
The plant was designed so that it could be expanded and the Client later installed additional equipment and the plant was expanded to 5Mtpa

2 MTPA Gold Mine Mills and leach tanks Gold Leach pad with plastic liner and drains 190,000 ounce per year Gold Plant
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Base Metal Projects Include:

Yabulu Refinery - Nickel Cobalt Oxy Hydroxide Plant
Fraser Osborn, in association with Kvaerner Metals, undertook the feasibility study based on Nickel Refinery’s process research for a Cobalt Oxy Hydroxide Plant.

The plant involved leaching, solvent extraction and concentrate filtering stages to produce required products.
Variations to products could be obtained by modifications to the process to suit particular client requirements. Following construction the plant was later expanded by refinery personnel.

QNI Yabulu - Plant Under Construction QNI Yabulu - Plant Under Construction QNI Yabulu - Plant Under Construction
Yabulu Refinery - Nickel Cobalt Oxy Hydroxide Plant - under construction

Ok Tedi Copper Mine
Engineering, Procurement + Construction Management for the conversion of two off 50 metre diameter thickeners to high rate thickeners for the separation of acid producing pyrite tailings.

Additional works include redesign of the reagent storage and dosing facility and the conversion of CIL tanks to agitated storage tanks for pyrite tailings and works associated with 130 km tailings pipeline.

Engineering, Procurement + Construction Management for the installation of 2 off Metso VPA vertical plate pressure filters for dewatering of around 750,000 tonnes of copper concentrate per year.

Ok Tedi Copper Mine - Filters Complete Ok Tedi Copper Mine - Structural Frame Ok Tedi Copper Mine - Filters Assembly
Ok Tedi Copper Mine - under construction

BHP Billiton Cannington -
Growth Project Feasibility Study + Expansion

Cannington is one of the largest silver mines in the world and in 2002 it produced around 36 Million ounces in concentrate.

Fraser Osborn undertook the capital cost estimate and detail design of $32 Million surface works component of the $130 Million Northern Ore Body Expansion including the minerals processing component of the expansion project.

Equipment installed includes:
200 tph scats crushing facility, two Vertimills (including a 1500 kW version – the largest built to date), cyclones, additional flotation capacity, paste fill conveyor control systems, reagent and acid storage tanks, pumps, piping, foundations, concrete and structures.

The construction was scheduled so that tie-ins to the existing plant would occur during scheduled shut downs of the operating plant.

BHP Billiton Cannington  - Conventional Zinc Cleaner Cells BHP Billiton Cannington  - Conventional Zinc Cleaner Cell installation BHP Billiton Cannington  - Cyclone Feed Pump & Sump and Flotation Air Blower
BHP Billiton Cannington - under construction

Fines “Split Flotation” Plant
The project separated the minus 5 micron material from the 300 tph process stream and separately treated the material before blending the resulting concentrates back with the main process stream.
The detailed design and construction was undertaken immediately after the feasibility study and the plant was commissioned on time and below budget.The plant increased recovery by around 3%.

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Coal Projects Include:

BMA Crinum Coal Mine
Design and specification of 4km by 4000 tonne per hour overland conveyor, design of foundations,  transfer chutes and associated structures for relocation of 30 metre high stockpiling conveyor, design of extension of reclaim tunnel,  design of breaker station and rejects system.  Project Value $A33M.

Xstrata Oaky Creek Coal Minee
Redesign of Modules 1, 2 and 3 at Oaky Creek to increase production from 650 tonnes per hour to 1,350 tonnes per hour (design throughput was achieved within 24 hours of commencement of commissioning the third module) Works included design of installation of two by 110 square metre belt filters. Upgrading of the breaker station from 1,100 tonnes per hours to 2,000 tonnes per hour. Modifications included new chutes to each of the breakers, vibratory feeders, multi-slope screens and conveyor drive modifications. Feasibility Study for installation of Module 4 Study of costs of refurbishment for product reclaim at Oaky Creek Coal to achieve 4,000 tonnes per hour rail wagons load out rate. Design of 300 m deep mine dewatering bore system Conceptual design and costing for Tailings Retreatment Plant

Wesfarmers Curragh Coal Mine
Study for preliminary design and costing of product stockpile extensions Assessment of alternates and costing of replacements for breaker stations and primary crushers

Xstrata Newlands Coal Mine
Design of installation of Abon sizers at Newlands to replace Gundlach sizers Chute redesigns to mininise blockage.

Anglo Australian Coal Callide Coal Mine
Design of dragline and heavy equipment haul road between Callide and Boundary Hill including 350 tonne GVM highway overpass.

RTZ Kestrel Coal Mine
Design and construction of 300 metre deep dewatering bore and associated 5 kilometre overland pipeline Design and construction of Kestrel water supply temporary pipeline including relocations whilst pipeline undermined by BMA Crinum long wall
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