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macraes gold processing plant

Major Mines & Projects | Macraes Mine

The Macraes Process Plant recovers gold by concentrating the metal into a relatively small fraction of flotation concentrate, oxidising the reground concentrate in a pressure oxidation autoclave, washing the oxidised residue and then utilising a carbon-in-leach process to recover gold from the residue. In detail the plant comprises:

The Mining Process - OceanaGold

Processing Gold at Macraes is known as ‘refractory ore’, which means it is ultra-fine and resistant to the typical cyanide leach process, typical of most gold processing plants. This refractory nature of the ore led to inefficiencies recovering the gold from ore in the past.

Macraes Gold Mine, Waitaki District, New Zealand

The Macraes processing plant is located close to the open pits and has the capacity to treat approximately 6Mt of ore annually. The processing plant includes crushing, grinding, flotation, fine grinding, pressure oxidation, and carbon in leach (CIL).

OceanaGold Macraes Operation - Posts | Facebook

OceanaGold Macraes Operation, Macraes Flat, New Zealand. 1,804 likes · 81 talking about this. The Macraes Operation on the South Island of New Zealand is the country’s largest gold producing mine.

Mine Details | MiningLink.com.au

This plant is one of only three other such plants in the southern hemisphere. Ore coming into the Macraes gold processing plant is subjected to being crushed, a grinding flotation process, fine grinding, pressure oxidation CIL (carbon-in-leach) elution and electro winning before it is smelted.

Macraes Gold Processing Plant

Macraes Gold Processing Plant. As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.

OceanaGold Macraes Operation - Posts | Facebook

OceanaGold Macraes Operation, Macraes Flat, New Zealand. 1,804 likes · 81 talking about this. The Macraes Operation on the South Island of New Zealand is the country’s largest gold producing mine.

Mining, Processing and Environment at Macraes | SpringerLink

Ore mined at Macraes is processed to produce a sulphide mineral rich concentrate, which was originally finely ground and then cyanided to extract the gold. Refractory ore, mainly sheared micaceous schist, yielded recoveries below 50 % of the gold. Ore consisting of graphitic sheared schist is preg-robbing, and gold recovery was also low.

Gold Ore Treatment at Macraes Flat - AusIMM

Macraes Mining Company Limited operates a 2.1 million tonnes per annum gold processing plant at Macraes Flat, Otago. This uses a conventional CIL route to treat oxide ore, and a flotation, grind, CIL route for sulfide ore. This paper describes the design and operation of this process plant.

Macraes Gold Mine - Continuous Improvement of a Refractory .

The treatment plant at the Macraes Gold Project in New Zealand processes a carbonaceous, refractory sulphide gold ore. Since its commissioning in 1990, there has been a programme of continuous improvement of the plant, leading to higher recovery, increased throughput and low operating costs.

Oceana Gold (New Zealand) Limited Macraes Phase III .

any mining activity, including processing of ore, is to cease at Macraes Flat by 30 August 2012. At this time most of the jobs and revenue associated with the gold mines at Macraes and Reefton will cease, and the extensive indirect benefit the mines bring to the district and region will also end.

Massive slip closes Macraes mine | Otago Daily Times Online News

The mine site, which consists of an open pit, an underground mine and an adjacent processing plant, is located between Palmerston and Ranfurly. "At the Macraes open pit operation, located at Macraes Flat, Otago, a section of the west wall failed following heavy rainfall," Oceana Gold said in a statement.

Jobs in Macraes Flat Otago - SEEK

Based at Macraes - Nz's largest Gold Mine; Seven days on, seven days off, seven nights on, seven nights off rotating roster; Entry level role into mining; Provide day to day support to our Open Pit Mining team at Macraes, and learn about ore samples, health and safety, and the gold mining industry.

Two Go Tiki Touring: Macraes Giants- Otago; Part 2

Oceana Gold's Macraes Mine is New Zealand's largest gold producing mine, producing over 4 million ounces of gold to date. The area leased by the mine covers around 27,500 hectares. There are two mines, Macraes Open Pit which has been operating since 1990 and Frasers Underground which began in 2008.

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