pyrrhotite gold musselwhite mine cyanidation

pyrrhotite gold musselwhite mine cyanidation

(PDF) Cyanidation of a pyrrhotite-bearing gold ore

The Musselwhite Mine in Canada processes a free milling gold ore at 5.5-5.8g/t Au and 4.2% pyrrhotite. A laboratory investigation was conducted to improve cyanidation. The pyrrhotite was ...

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Cyanidation of a pyrrhotite-bearing gold ore

Figure 1. Schematic diagram of Musselwhite Mine grinding and leaching circuit The presence of pyrrhotite in gold ores is known to have a negative impact on the dissolution of gold and on the consumption of cyanide. This report presents the results of a cyanidation study on a sample containing pyrrhotite as the only cyanicide.

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Advances in the cyanidation of gold - ScienceDirect

Jan 01, 2005  The Musselwhite Mine treats a pyrrhotite-bearing ore containing mostly free gold (5.5–5.8 g/t Au, 4.2% pyrrhotite). The pyrrhotite is both monoclinic (50%) and hexagonal (50%). Cyanidation with the addition of lead nitrate was already part of

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Pyrrhotite - an overview ScienceDirect Topics

The Musselwhite Mine treats a pyrrhotite-bearing ore containing mostly free gold (5.5–5.8 g/t Au, 4.2% pyrrhotite). The pyrrhotite is both monoclinic (50%) and hexagonal (50%). Cyanidation with the addition of lead nitrate was already part of the plant strategy at the beginning of the project.

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Preg-robbing phenomena in the cyanidation of sulphide

The Musselwhite Mine in Canada processes a free milling gold ore at 5.5-5.8g/t Au and 4.2% pyrrhotite. A laboratory investigation was conducted to improve cyanidation. The pyrrhotite was ...

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Reactions of gold and sulfide minerals in cyanide media ...

Nov 01, 2002  高达10%返现  The effect of pyrite, pyrrhotite, chalcopyrite, realgar and arsenopyrite on gold dissolution in cyanide media was investigated. The cyanidation of synthetic gold ores in the presence of various concentrations of sulfides was studied under constant experimental conditions. A mineralogical analysis of the minerals was performed. The leaching kinetics were determined. The

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Musselwhite Gold mining ( Mining Methods And Gold ...

Sep 24, 2015  Mining methods and gold processing musselwhite mines initially operated both open-pit and underground mines, open-pit production having been designed to ensure mill feed at a rate of 3,300t/d for about five years following mill commissioning. Most of the mine’s ore is now sourced from underground. And gold processing from musselwhite mines processing includes crushing,

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Coarse Fine Free Gold in Arsenopyrite, Pyrrhotite, Pyrite

May 23, 2017  Coarse Fine Free Gold in Arsenopyrite, Pyrrhotite, Pyrite. This study deals with an ore containing coarse and fine free gold associated with arsenopyrite, pyrrhotite, pyrite and graphite in a quartz and slate gangue. The sulphides and graphite constitute 10 to 12% of the ore. Treatment required utmost economy.

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Major Mines Projects Musselwhite Mine

The mineralization at Musselwhite can be classified as an Iron Formation hosted gold deposit. Typically, gold in these deposits occurs in cross-cutting quartz veins and veinlets or as fine disseminations associated with pyrite, pyrrhotite, and arsenopyrite hosted in iron formations and adjacent rocks within volcanic or sedimentary sequences (McMillan 1996).

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of gold cynidation

The Musselwhite Mine in Canada processes a free milling gold ore at 5.5-5.8g/t Au and 4.2% pyrrhotite. A laboratory investigation was conducted to improve cyanidation. The pyrrhotite was determined to be 50% monoclinic and 50% hexagonal.

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The effect of grinding chemistry on cyanide leaching of ...

The Musselwhite Mine in Canada processes a free milling gold ore at 5.5-5.8g/t Au and 4.2% pyrrhotite. A laboratory investigation was conducted to improve cyanidation. The pyrrhotite was ...

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of gold cynidation

The Musselwhite Mine in Canada processes a free milling gold ore at 5.5-5.8g/t Au and 4.2% pyrrhotite. A laboratory investigation was conducted to improve cyanidation. The pyrrhotite was determined to be 50% monoclinic and 50% hexagonal.

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Preg-robbing phenomena in the cyanidation of sulphide gold ...

The Musselwhite Mine in Canada processes a free milling gold ore at 5.5-5.8g/t Au and 4.2% pyrrhotite. A laboratory investigation was conducted to improve cyanidation. The pyrrhotite was ...

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Advances in the cyanidation of gold Request PDF

The Musselwhite Mine in Canada processes a free milling gold ore at 5.5-5.8g/t Au and 4.2% pyrrhotite. A laboratory investigation was conducted to improve cyanidation. The pyrrhotite was ...

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(PDF) Geological Setting of the World-Class Musselwhite ...

The Musselwhite mine is a world-class gold deposit hosted in polydeformed amphibolite-facies banded iron-formation of the Mesoarchean North Caribou greenstone belt, northwestern Superior Province ...

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Control of lead nitrate addition in gold recovery - Her ...

Deschênes “Cyanidation of a Pyrrhotite-Bearing Gold Ore from Musselwhite Mine”; Ann. Mtg. Cdn. Min. Proc., Canada, Jan., 2002, 735-755. ... A method for improving the efficiency of a gold cyanidation leach process by controlling and modifying the rate of lead compound addition to a leach liquor, by adjusting the rate of addition according ...

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Newmont Corporation - Operations Projects - Global ...

Musselwhite is a fly-in, fly-out operation located approximately 500 kilometers north of Thunder Bay, Canada. Musselwhite’s ore is mined from two main zones below Lake Opapimiskan. Ore is processed onsite using a circuit that includes crushing, grinding, leaching by cyanidation, carbon in pulp recovery and electrowinning. Gold recoveries are 96%.

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Musselwhite mine - Wikipedia

Musselwhite mine uses a gold cyanidation and CIP (carbon in pulp) extraction process. Ore is extracted via a blast hole process and moved via a series of scoop-trams and underground dump trucks to one of 2 rockbreakers, either on the surface or at a 400 meter level.

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New insights on the geological and structural settings of ...

The Musselwhite mine is a world-class gold deposit hosted in polydeformed amphibolite-facies banded iron-formation of the Mesoarchean North Caribou greenstone belt, northwestern Superior Province. The deposit is located about 2 km west of the tectonic boundary with the gneissic Island Lake domain. Detailed underground and surface mapping, core logging, and structural analyses have been ...

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G. DESCHÊNES Principal Engineer, Precious metals ...

The Musselwhite Mine in Canada processes a free milling gold ore at 5.5-5.8g/t Au and 4.2% pyrrhotite. A laboratory investigation was conducted to improve cyanidation. The pyrrhotite was ...

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Cobalt Camp - David K. Joyce

Cobalt Camp. Goldcorp Inc.: The Musselwhite Mine. The Musselwhite gold mine has quietly grown into a giant deposit since it first opened in 1997. It is wholly owned by Goldcorp Canada Ltd. and is located in Northwestern Ontario, 480 km NNW of Thunder Bay.

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Major Mines Projects Eleonore Mine

The operating entity for the operations is a wholly-owned subsidiary of Goldcorp Inc., Les Mines Opinaca Ltée. The Éléonore Operations host the Roberto gold deposit, which consists of the Roberto, East Roberto, and Zone du Lac lenses. The Roberto deposit is a clastic sediment-hosted stockwork-disseminated gold deposit.

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Musselwhite gold mine ملتقى المهندسين العرب

Oct 12, 2013  Musselwhite is principally an underground gold mine and associated processing plant producing nearly a quarter of a million ounces of gold annually. The mine is situated in northwestern Ontario, Canada and is 100% owned by Goldcorp Inc. With existing mineral reserves, the Musselwhite Mine has an expected mine life through to 2018.

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Mining News

Exploration Resumes on Musselwhite-type Gold Targets. Romios' field crew also completed a focussed program of soil sampling and prospecting in June along 4 km of selected portions of the 11 km length of the same banded iron formation ("BIF") that hosts the > 7 million ounce Newmont Goldcorp Musselwhite gold mine 18 km to the south.

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The effect of grinding chemistry on cyanide leaching of ...

The Musselwhite Mine in Canada processes a free milling gold ore at 5.5-5.8g/t Au and 4.2% pyrrhotite. A laboratory investigation was conducted to improve cyanidation. The pyrrhotite was ...

More

(PDF) Reactions of gold and sulfide minerals in cyanide media

The Musselwhite Mine in Canada processes a free milling gold ore at 5.5-5.8g/t Au and 4.2% pyrrhotite. A laboratory investigation was conducted to improve cyanidation. The pyrrhotite was ...

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Summary of Gold Plants and Processes - ScienceDirect

Jan 01, 2016  Lead nitrate addition and cyanide-level control improved gold recovery; cyanide consumption drop: 26: Musselwhite: Ontario: Pyrrhotite: Cyanidation: Lead nitrate, oxygen with cone spargers, online cyanide analysis: 26: Eleonore: Canada: Pyrrhotite: UFG; cyanidation: P 80 of 10 μm; 97.0% Au extraction in 72 h; cyanide consumption, 31.5 kg/t ...

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Control of lead nitrate addition in gold recovery - Her ...

Deschênes “Cyanidation of a Pyrrhotite-Bearing Gold Ore from Musselwhite Mine”; Ann. Mtg. Cdn. Min. Proc., Canada, Jan., 2002, 735-755. ... A method for improving the efficiency of a gold cyanidation leach process by controlling and modifying the rate of lead compound addition to a leach liquor, by adjusting the rate of addition according ...

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Case Study Canadian Malartic - BC ML/ARD

AMEC Americas Limited (AMEC). 2006. Review of Musselwhite Mine Operation, Ontario, Canada –NI43 101 Technical Report. July 20. enzaazoua et al. 2017. “Integrated environmental management of pyrrhotite tailings at Raglan Mine: Part 1: challenges of desulphurization process and reactivity prediction”. Journal of Cleaner Production 162: 86-95.

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Case Study of Thickened Tailings at Goldcorp’s Musselwhite ...

Jan 01, 2011  It will highlight the challenges from laboratory testing to pre-feasibility to the engineered design of the thickened tailings system implemented at Musselwhite Mine.BACKGROUNDGoldcorp Canada’s Musselwhite Mine, in Northwestern Ontario (120 km north of Pickle Lake), is an underground gold mining operation that began production in 1997.

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how much energy does sb m ore crusher

(PDF) Cyanidation of a pyrrhotite-bearing gold ore. The Musselwhite Mine in Canada processes a free milli ng gold ore at 5.5-5.8g/t Au and 4.2 pyrrhotite. A laboratory investigation was conducted to improv e cyanidation. The pyrrhotite was . Get Price

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Crusher fines thunder bay

Cyanidation of a pyrrhotite-bearing gold ore - Ejmpep. 2 Placer Dome Canada, Musselwhite Mine, P.O. Box 7500,Thunder Bay, .... stages, using a 1m x 1.4m jaw crusher and 2.1m super heavy-duty cone crusher. ... the fine fraction to make sure that the sulphideminerals are correctly ground. More details » Get Price

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Newmont's Musselwhite mine ramping up to full operations ...

Dec 02, 2020  In the most recent quarter, Musselwhite produced 45,000 oz gold at AISC of $1,260/oz. The mine had no gold production in the prior-year quarter due

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Major Mines Projects Eleonore Mine

The operating entity for the operations is a wholly-owned subsidiary of Goldcorp Inc., Les Mines Opinaca Ltée. The Éléonore Operations host the Roberto gold deposit, which consists of the Roberto, East Roberto, and Zone du Lac lenses. The Roberto deposit is a clastic sediment-hosted stockwork-disseminated gold deposit.

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US7025942B2 - Control of lead nitrate addition in gold ...

A method for controlling the extraction of gold from a gold ore by the cyanidation process in which a leaching step including the addition of a lead compound, which is typically lead nitrate or other lead salt, is used. In order to maintain stable conditions in the leaching process, and to use the leaching reagents efficiently, an analysis step is used to monitor the concentration of ...

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Goldcorp Provides Second Quarter 2018 Exploration Update

Jul 25, 2018  The initial cyanide leach test results have returned average recoveries of 93% for gold and 65% for silver. A selection of significant results from second quarter drilling is presented in Figures ...

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Sean d'Apollonia, P. Eng - Mining Engineer - Nova Scotia ...

Mine Projects Planner. Goldcorp Inc. Apr 2014 - Jun 20162 years 3 months. Musselwhite.

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Kevin Young - Mill Operator - NewGold LinkedIn

Goldcorp Inc. Apr 2001 - Sep 20076 years 6 months. Musselwhite Mine. Operation of all milling circuits, including grinding, leaching, CIP/Gold recovery, and SO2 cyanide destruction.

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