Quenton has more than 25 years of experience in the mineral processing and mining industry, starting in Western Australian nickel and leading to gold at the Macraes Operation since 1999. He has been involved in industry advancing technologies such as flash flotation, pressure oxidation, large mechanical tank flotation, and fine grinding.
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The Macraes gold mine, in southern New Zealand, was developed in a low grade mesothermal deposit. A pressure–oxidation plant was commissioned in 1999 to oxidize pyrite and arsenopyrite in the ore and release gold from within the sulphide grains. Pressure–oxidation discharges include anhydrite, jarosite, and amorphous Fe arsenates with molar Fe/As of 2–7 …
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Information from the ore samples helps the Processing Plant adjust their process to match the grade of ore coming in and best extract the gold from the rock. (Right) A core sample showing …
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The Didipio process plant is expected to ramp up to its throughput rate of 3.5 million tonnes per annum over the course of the next few weeks. For the remainder of the year, the Company expects to produce between 7,000 and 12,000 ounces of gold and 1,000 tonnes of copper at an All-In Sustaining Costs between US$100 and US$150 per ounce sold on ...
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The Processing Plant is where we recover the gold out of the ore. This involves the processes of crushing, grinding, flotation, oxidisation, leaching...
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Macraes is New Zealand's largest active gold mine, both on the surface and underground. Since OceanaGold's involvement, the mine has produced more than five million …
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Working as part of the Macraes Processing Plant, this role will include assisting trades staff (Maintenance Fitters and Electricians), performing preventative maintenance tasks, as well as other general duties to support the Maintenance team in a safe and efficient manner. 7 on / 7 off (dayshift only) roster
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Table 54.1 provides examples of flowsheets and process issues in gold plants presented in this book. Table 54.1. Summary of Gold Plants and Flow Sheets Discussed in Gold Ore Processing, Second Edition. Plant Location ... Macraes Flat: New Zealand: Refractory sulfide: Concentrate fine milling/pressure oxidation: 7: Reefton:
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The Macraes deposit is a world-class hard-rock gold deposit endowed with >10 million ounces of gold. It is hosted in a single regional-scale structure known as the Hyde-Macraes Shear Zone (HMSZ), which is up to 150m thick, dips 10-20° to the northeast, and …
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The Macraes open pit production runs in parallel with the underground operations, with all ore being processed through the Macraes processing plant. Open pit mining to be completed in 2026. In 2027 processing tonnes are made up of open pit stockpiles and underground ore. Related Assets: Frasers/Golden Point Mine, Macraes Mine
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Our Macraes Process Plant are currently on the search for a Gold Room Supervisor. This position involves performing and supervising gold room tasks to pour bullion and liaison with appropriate personnel to ensure quality bullion is available for scheduled uplifts.
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• Processing plant; and • Tailings Storage Facilities, including a new storage facility that is currently being investigated ... and Reporting Criteria in accordance with JORC Code 2012 is presented in Appendix 1. 1.0 Macraes Gold Project . The Macraes Gold Project (MGP) is located 91 km northwest of Dunedin, in the Otago Region of the
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With over three decades of continuous production, our Macraes Operation is our foundation asset which began commercial production in 1990. More than 600 …
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Processing Plant One unique component of our Processing Plant is the autoclave. The 12-metre long, high pressure, high temperature vessel is one of a kind in the Southern Hemisphere. It's used to deal with the 'refractory ore' at Macraes which is ultra-fine and resistant to the typical cyanide leach process used by most gold processing ...
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The OceanaGold Macraes Processing Plant trial compared Kerosene and Innospec's DEHSCOFIX® DG30 and revealed that DEHSCOFIX® DG30 improved gold …
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Macraes Operations is a New Zealand's largest active gold producing mine, consisting of a large-scale surface mine, an underground mine, and an adjacent process plant, located in the Otago region of the South Island, ... and an adjacent process plant, located in the Otago region of the South Island, Multinational gold producer committed to the ...
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The processing plant at Macraes includes an autoclave, the only processing plant with this feature in New Zealand. "We prioritise partnerships, technologies and skills needed to sustainably mine gold for many years to come.
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Information from the ore samples helps the Processing Plant adjust their process to match the grade of ore coming in and best extract the gold from the rock. (Right) A core sample showing visible gold. Macraes ore has relatively low concentrations of gold as result of the geochemical conditions during the ore formation, some millions of years ago.
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Sepon Gold and Copper Project. MMG Limited, Laos. Providing process optimisation and maintenance consulting services to a major gold and copper producer in the region. Lihir Million Once Project Upgrade, Newcrest Mining, Lihir Island, Papua New Guinea . This is one of the world's largest known gold deposits.
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Built in 1902 to serve the Golden Point gold mine, the five-stamper plant operated until the 1950s and processed both gold and scheelite. Hundreds of stamper batteries used to operate across New Zealand, but almost all were …
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Macraes Operations is a New Zealand's largest active gold producing mine, consisting of a large-scale surface mine, an underground mine, and an adjacent process plant, located in the Otago region of the South Island,
WhatsApp: +86 18221755073
Join our Process Plant at Macraes as a Lead Operator! This role works closely with the Shift Supervisor to ensure optimal performance of the processing plant. ... Join Macraes, New Zealand's largest gold mine! Play a key role in the performance of our Process Plant;
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Rhys, one of the legends from the Macraes Processing Plant, talked us through the gold making process when we poured our 10,000th bar way back in 2019.
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Gold was first discovered in the Macraes Flat locale in 1862 when prospector, James Crombie, discovered alluvial gold in Deepdell Creek, setting a gold rush in motion. From shovel, pan and cradle, to sluice boxes, sluicing and stamping batteries, a variety of mining methods were used in the early days for both alluvial and hard rock mining.
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Reporting to the Process Plant Purchasing & Logistics Supervisor, you will be responsible for the storage, issue and receipting of the process plant stock, spares and consumables. For this role, we are ideally seeking a confident forklift operator with at least a couple of years' experience loading/unloading heavy goods. Forklift operation
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Gold at Macraes is known as 'refractory ore', which means it's ultra-fine and resistant to the typical cyanide leach process used by most gold processing plants. This refractory nature of the ore initially led to inefficiencies recovering the gold from ore. After innovations and new technology, our ore now goes through a six-stage ...
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Working as part of the Macraes Processing Plant, this role will include assisting trades staff (Maintenance Fitters and Electricians), performing preventative maintenance tasks, as well as other general duties to support the Maintenance team in a safe and efficient manner. ... Join Macraes, New Zealand's largest gold mine; 7 on / 7 off ...
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The Macraes Gold Project (MGP) is located 91 km northwest of Dunedin, in the Otago Region of the South Island, New Zealand. The MGP is located 1-2km to the ... process plant and the Mixed Tailings Impoundment (MTI). More detailed work completed during 2021 has shown a materially higher capital cost for the process
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The processing plant at Macraes includes an autoclave, the only processing plant with this feature in New Zealand. "We prioritise partnerships, technologies and skills needed to sustainably mine ...
WhatsApp: +86 18221755073
processing plant and the groundwater system below the tailings complex. Dissolved sulphate plumes emanate from tailings and waste rock piles, but are diluted downstream. ... The Macraes orogenic gold mine occurs in a regionally extensive mineralised shear zone that strikes northwest in the Mesozoic Otago Schist (Figure 1;Crawetal.
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Macraes Operations is a New Zealand's largest active gold producing mine, consisting of a large-scale surface mine, an underground mine, and an adjacent process plant, located in the Otago region of the South Island,
WhatsApp: +86 18221755073
Feed and Tail gold grades from 1992 – 2014 Macraes Processing Plant. - "Optimisation of metallurgical plant sampling procedures at the Macraes gold mine" Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 222,371,394 papers from all fields of science ...
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Working in our busy Process Plant department, this role provides professional office administration and support to the team. Receive and distribute messages and documents to staff as appropriate. Provide a professional delivery of word processing service to the managers and superintendents in the plant administration building.
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