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micron research gold elution

Elution of gold from carbon by the micron solvent

Jul 01, 1985· Recent research and development at Micron Research (W.A.) has there- fore led to the design of the Micron Distillation Unit (Fig. 1), which pro- vides a simple efficient method of stripping gold, recovering the solvent and reactivating carbon in a single closed circuit batch operation (Griffin and Costello, 1982b).

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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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Research and Development in the Micron Research (W. A

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. The Micron Procedure involves pretreatment of the loaded carbon with NaCN/NaOH followed by elution with methanol vapour and condensate. Carbon is packed into...

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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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Process for the elution of precious metals absorbed on

In the Micron Research process the carbon is presoaked with 0.5 to 1 bed volume of solution containing 5% NaCN and 1% NaOH and then 0.5 bed volume of pure methanol is added, which is refluxed through the carbon bed for 6 to 12 h to elute the gold (D. M. Muir et al.,1985. Elution of gold from carbon by the Micron solvent distillation procedure.

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Elution and Carbon Reactivation Resource book

conditions, elution (desorption) of gold from the carbon occurs. The main factor that makes desorption or stripping a simple process is the fact that gold will only adsorb onto carbon at low temperatures. If the temperature of a solution and carbon mixture is increased, the gold will readily desorb from the carbon into the solution. Temperature

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AARL ELUTION PROCESS PDF

Apr 21, 2019· The Micron process produces a very concentrated eluant free of alcohol, with gold and silver values two or three times higher than those in the loaded carbon. The thermocal heater and pump continue to operate throughout the preheat and subsequent elution stage so as to maintain desired operating temperatures.

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The Micron Group International CRO (Clinical Research

Assured, integrated solutions in clinical research. The Micron Group is an international clinical research organisation. We provide full and comprehensive support to clients, working across all phases of development and throughout the product lifecycle.

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AARL Carbon Stripping System Operation: Elution

Metallurgical ContentAcid WashingPreheat StageElution stageSequence ControllersDescription of the Carbon Stripping Process (See fig. 1)Acid Wash of CarbonTransfer to Elution ColumnReagent Addition and PreheatElution and Carbon CoolTransfer of Barren Carbon to the Regeneration Kiln HopperElectrowinningOperation of the Carbon Stripping SystemFault Finding Procedure for the

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AARL ELUTION PROCESS PDF

Apr 01, 2020· The most recently developed stripping procedure being used commercially was developed at Micron Research, in Australia 8. Additional water is forced into this line via valve AV and the carbon is forced along the line through valve AV into the elution column.

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Solvent elution of gold from C.I.P. carbon ScienceDirect

May 01, 1985· Research and developments in the Micron Research (W.A.) solvent procedure for gold elution from carbon. Proc. Symp. on Gold-Geology, Mining, and Extractive Metallurgy, Kalgoorlie,

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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

More

Elution and Carbon Reactivation Resource book

conditions, elution (desorption) of gold from the carbon occurs. The main factor that makes desorption or stripping a simple process is the fact that gold will only adsorb onto carbon at low temperatures. If the temperature of a solution and carbon mixture is increased, the gold

More

Process for the elution of precious metals absorbed on

In the Micron Research process the carbon is presoaked with 0.5 to 1 bed volume of solution containing 5% NaCN and 1% NaOH and then 0.5 bed volume of pure methanol is added, which is refluxed through the carbon bed for 6 to 12 h to elute the gold (D. M. Muir et al.,1985. Elution of gold from carbon by the Micron

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