elution of gold from carbon
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elution of gold from carbon

Elution of gold from carbon by the micron solvent ...

1985-7-1  Elution of gold from carbon by the Micron solvent distillation procedure. Hydrometallurgy, 14: 151--169. The desorption of gold from activated carbon is promoted by adding organic solvents to aqueous cyanide solutions. At 65--80 the elution of gold is fast and is not affected by water quality.

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(PDF) The Elution Of Gold From Activated Carbon At Room ...

1994-8-1  One of the main bottlenecks in the carbon-in-pulp process for the recovery of gold is the elution procedure, which typically requires the heating of caustic cyanide

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Ultrasonic elution of gold from activated carbon ...

2003-3-1  The Anglo elution procedure ( Davidson and Duncanson, 1977; Davidson and Veronese, 1979) is an alternative approach, which elutes gold in 8–12 h using deionised water at 100–120 °C. In this procedure, the carbon is pre-soaked with 5% w/v NaCN/1% w/v NaOH solution. This process is sensitive to the quality of water used.

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Elution of gold from carbon by the micron solvent ...

The desorption of gold from activated carbon is promoted by adding organic solvents to aqueous cyanide solutions. At 65–80°C the elution of gold is fast and is not affected by water quality. The Micron procedure involves pretreatment of the loaded carbon with NaCN/NaOH followed by elution with methanol vapour and condensate.

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Continuous Elution for Extraction of Gold from Carbon

2017-11-26  Continuous Elution for Extraction of Gold from Carbon. Post navigation. Previous. Next. The continuous elution process is a continuous counter-current

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(PDF) Kinetics of elution of gold from activated carbon by ...

1990-5-1  In previous papers the mechanism and dynamics of the elution of gold cyanide from activated carbon have been investigated in detail. Sub processes such as

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Elution of gold from carbon by the micron solvent ...

The desorption of gold from activated carbon is promoted by adding organic solvents to aqueous cyanide solutions. At 65–80°C the elution of gold is fast and is not affected by water quality. The Micron procedure involves pretreatment of the loaded carbon with NaCN/NaOH followed by elution with methanol vapour and condensate. Carbon is packed into a column above the distillation pot and acts ...

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The mechanism of elution of gold cyanide from activated

Numerous articles have appeared on the mechanism of the adsorption of gold cyanide onto activated carbon. In contrast, little information is available on the mechanism of elution of the adsorbed gold. It is the objective of this article to formulate such a mechanism on the basis of batch and column elution tests without analyzing adsorbed species on the carbon directly. The presence of ...

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Elution behaviour of metals from carbon - SAIMM

2009-10-15  ELUTION BEHAVIOUR OF METALS FROM CARBON 475 Introduction Gold can be extracted industrially from ores by a variety of processes, and one of the most successful methods is the carbon-in-pulp (CIP) process. In CIP processing, ore is mined, ground, and leached with alkaline cyanidic solution to solubilize the gold as a gold cyanide complex.

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Factors affecting the elution of gold cyanide from ...

1994-1-1  The cyanide-age of the carbon, QN, is defined as the amount of cyanide, in g CN-/kg carbon, that has been Elution of gold cyanide from activated carbon 79 adsorbed or oxidised on the carbon. In an experiment to quantify the effect of cyanide-age on the desorption of gold cyanide, five samples of carbon were loaded with gold to the same level.

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(PDF) The Elution Of Gold From Activated Carbon At Room ...

One of the main bottlenecks in the carbon-in-pulp process for the recovery of gold is the elution procedure, which typically requires the heating of caustic cyanide eluants to high temperatures ...

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Continuous Elution for Extraction of Gold from Carbon

2017-11-26  Continuous Elution for Extraction of Gold from Carbon. Post navigation. Previous. Next. The continuous elution process is a continuous counter-current system operating in a pressure vessel at elevated pressure and temperature in which both

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(PDF) Kinetics of elution of gold from activated carbon by ...

In previous papers the mechanism and dynamics of the elution of gold cyanide from activated carbon have been investigated in detail. Sub processes such as the pre-soaking step, the degradation of ...

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Elution of gold from carbon by the micron solvent ...

The desorption of gold from activated carbon is promoted by adding organic solvents to aqueous cyanide solutions. At 65–80°C the elution of gold is fast and is not affected by water quality. The Micron procedure involves pretreatment of the loaded carbon with NaCN/NaOH followed by elution with methanol vapour and condensate. Carbon is packed into a column above the distillation pot and acts ...

More

Elution behaviour of metals from carbon - SAIMM

2009-10-15  ELUTION BEHAVIOUR OF METALS FROM CARBON 475 Introduction Gold can be extracted industrially from ores by a variety of processes, and one of the most successful methods is the carbon-in-pulp (CIP) process. In CIP processing, ore is mined, ground, and leached with alkaline cyanidic solution to solubilize the gold as a gold cyanide complex.

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Solvent elution of gold from C.I.P. carbon - CORE

Solvent elution of gold from C.I.P. carbon . By D.M. Muir, W. Hinchliffe, N. Tsuchida and M. Ruane. Abstract. The effectiveness of the solvents in promoting gold desorption from activated carbon is in the order acetonitrile > methyl ethyl ketone ⩾ acetone ⪢ dimethylformamide > ethanol. Aqueous acetonitrile and aqueous acetone strip gold in ...

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[PDF] The Chemistry of the Extraction of Gold Semantic ...

Elution of gold from carbon by the micron solvent distillation procedure. D. Muir, W. Hinchliffe, A. Griffin. Chemistry. 1985. The desorption of gold from activated carbon is promoted by adding organic solvents to aqueous cyanide solutions. At 65–80°C the elution of gold is fast and is not affected by water quality.

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Elution, Acid Wash Carbon Transfer Vessels

2021-11-22  Our Elution and Acid Wash columns are optimally designed for plug flow of eluate or fresh water for eluting gold cyanide complexes from activated carbon recovered from CIP/CIL gold adsorption circuits. Designed and constructed to a range of

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Au Recovery Using an Activated Carbon Column

2012-10-26  The gold was eluted from the carbon by the Zadra procedure. The operating conditions of the elution and electrowinning circuits are reported, and the elution of the gold and other metals is discussed. The reactivation of the carbon, which was carried out in a vibrating-deck kiln, is described, and the effects of this reactivation on the ...

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THE ADSORPTION AND ELUTION OF PLATINUM GROUP

2012-9-6  activated carbon almost to completion in 4 to 5 bed volumes at 80°C, while the elution of gold at this temperature is slow, with a significant amount of gold still to be eluted after 16 bed volumes. Cyanide pre-treatment was found to have a significant influence on PGM elution.

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Elution behaviour of metals from carbon - SAIMM

2009-10-15  ELUTION BEHAVIOUR OF METALS FROM CARBON 475 Introduction Gold can be extracted industrially from ores by a variety of processes, and one of the most successful methods is the carbon-in-pulp (CIP) process. In CIP processing, ore is mined, ground, and leached with alkaline cyanidic solution to solubilize the gold as a gold cyanide complex.

More

(PDF) Kinetics of elution of gold from activated carbon by ...

In previous papers the mechanism and dynamics of the elution of gold cyanide from activated carbon have been investigated in detail. Sub processes such as the pre-soaking step, the degradation of ...

More

Continuous Elution for Extraction of Gold from Carbon

2017-11-26  Continuous Elution for Extraction of Gold from Carbon. Post navigation. Previous. Next. The continuous elution process is a continuous counter-current system operating in a pressure vessel at elevated pressure and temperature in which both

More

[PDF] The Chemistry of the Extraction of Gold Semantic ...

Elution of gold from carbon by the micron solvent distillation procedure. D. Muir, W. Hinchliffe, A. Griffin. Chemistry. 1985. The desorption of gold from activated carbon is promoted by adding organic solvents to aqueous cyanide solutions. At 65–80°C the elution of gold is fast and is not affected by water quality.

More

The elution of gold from activated carbon using deionized ...

SYNOPSIS The pretreatment of gold-loaded activated carbon with a relatively strong sodium cyanide solution prior to elution with deionized water at 90 to 125°

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Au Recovery Using an Activated Carbon Column

2012-10-26  The gold was eluted from the carbon by the Zadra procedure. The operating conditions of the elution and electrowinning circuits are reported, and the elution of the gold and other metals is discussed. The reactivation of the carbon, which was carried out in a vibrating-deck kiln, is described, and the effects of this reactivation on the ...

More

The elution of gold from activated carbon at room ...

1994-8-1  Elution efficiencies of around 100 per cent were also obtained in less than 4 hours during the batch elution of carbon at liquid-to-solid ratios of about 100. Lower liquid-to-solid ratios resulted in the re-adsorption of gold, probably owing to the oxidation of sulphide to polysulphide, with the resultant formation of gold complexes that were ...

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Elution, Acid Wash Carbon Transfer Vessels

2021-11-22  Our Elution and Acid Wash columns are optimally designed for plug flow of eluate or fresh water for eluting gold cyanide complexes from activated carbon recovered from CIP/CIL gold adsorption circuits. Designed and constructed to a range of

More

Solvent elution of gold from C.I.P. carbon - CORE

Solvent elution of gold from C.I.P. carbon . By D.M. Muir, W. Hinchliffe, N. Tsuchida and M. Ruane. Abstract. The effectiveness of the solvents in promoting gold desorption from activated carbon is in the order acetonitrile > methyl ethyl ketone ⩾ acetone ⪢ dimethylformamide > ethanol. Aqueous acetonitrile and aqueous acetone strip gold in ...

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TECHNICAL PAPER - Purolite

2020-2-10  Activated carbon is widely used for gold recovery from cyanide leach liquors via carbon-in-leach (CIL) or carbon-in-pulp (CIP) technology. From all the base metals cyanide complexes typically ... room temperature prior to gold elution at high temperature(5). Gold-Selective Ion Exchange Resins

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