Project

Adsorption and Elution Column The NIle Machinery Co Ltd

Granular activated carbon is packed in an adsorption column When the purified solution passes through the activated carbon the purpose of adsorbing gold therefrom is achieved The use of granular activated carbon to recover gold from a solution includes the following steps carbon adsorption carbon elution or desorption carbon regeneration
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OPTIMIZING THE OPERATING CONDITIONS OF GOLD ELUTION

The elution column operates with a 22 5 NaOH solution with a temperature range of 120oC135oC The gold is stripped from the carbon into the solution An elution will start when there is 6 ton of loaded carbon in the measuring vessel The caustic solution that returns from the electrowinning circuit is pumped into the nbsp
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The mechanism of elution of gold cyanide from activated carbon

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 nbsp
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Lab Manual Columbia University

Flash column chromatography occasionally CC separates large quantities of compounds under air pressure while thin layer chromatography usually referred to as TLC is more useful for qualitative analysis and smallscale separations Gas chromatography usually called GC is purely an analytic technique
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Unused Equipment for Gold Leach and Carbon Elution

Description Unused Equipment for Gold Leach and Carbon Elution Regeneration – Flow Sheet – All equipment is unused surplus – Including tanks agitators columns heaters pumps electrowinning cells rectifiers and more Tanks Qty 1 ea – Click here for pictures and details – Centrifugal Concentrator Water Tank
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The mechanism of elution of gold cyanide from activated carbon

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
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Training Manual for CIL amp ElutionFinal Reviewed Adsorption

CIL Tank volume Carbon concentration Leach CIL residence time tanks Tailing screening Tail screen mesh Tail screen flux Acid Washing Acid wash flow rate Acid wash strength Acid wash pH Acid wash time Rinsing time Loaded vessel volume Acid make up tank volume Elution Elution column volume Elution Batch size nbsp
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CHAPTER 3 ACTIVATED CARBON COLUMNS PLANT DESIGN

CHAPTER 3 ACTIVATED CARBON COLUMNS PLANT DESIGN 116 FIGURE 4 1 TYPICAL PRESSURE DROP CURVE FOR A BACKWASHED AND SEGREGATED BED Secondly it was necessary to calculate pressure drop in the filter disc that is going to support activated carbon bed in the column This is a 50 mm filterdisc
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Banini George Agbeko Modelling of the elution pro WIReDSpace

efficiency the carbon is loaded into the elution column for acid washing Acid washing by 3 He at the elutlol1 t n perature of i10 to O°C recently 90°C therefore precsdes the process In fact 0 39 E currently plants have best designed to acid wash at ambient temperatllres and this may be done after 39lhe elution 39 process nbsp
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The appliion of activated carbon for the adsorption and elution of

The appliion of activated carbon for the adsorption and elution of platinum group metals from dilute cyanide leach solutions Adsorption tests were conducted on a pregnant alkaline leach solution 0 15 ppm Pt 0 38 ppm Pd 0 1 ppm Au resulting from cyanide extraction performed in column leach tests The initial nbsp
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Carbon in pulp Wikipedia

The elute solution normally consisting of caustic soda the electrolyte cyanide and water circulates through the loaded carbon extracting gold and other metals The loaded solution passes through an electro winning cell where the gold and other metals are attached to hodes made up of wire wool by electrolysis
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Stainless Steel Elution Column for Nigel Gold recovery plant

Grade 316L Stainless Steel was specified for the Elution Column depicted in the photograph The column is part of the new carbon in pulp plant which has been constructed for the Nigel Municipality to recover gold on a profitable basis from the sediment in the Nigel Dam
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Understanding the Complexity of Porous Graphitic Carbon PGC

May 26 2016 Herein we optimize the choice of mobile phase solvent in a gradient program with three parts a preparatory phase which allows binding of analytes to column an elution phase which gives the required separation peak shape and a maintenance phase to preserve the required retention capacity
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A reactor model for gold elution from activated carbon

In the AARL elution loaded carbon Carbon elution is usually carried out at high process the loaded carbon is acid washed and soaked in a hot temperature in a column in which the eluant is pumped through caustic cyanide solution for 1 h 2 Hot de ionized water is then a packed carbon
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Molecular Sieve Packed Columns and Fixed Permanent Gas

Dec 3 2013 Plus you can easily chromatograph larger compounds up through and including pentane hexanes will elute but tail If H2O does condense inside the column 30 minutes at 250⁰C will dry a ShinCarbon unlike the 5A amp 13X which needs 300⁰C for 3 hours and using a carrier gas other than nitrogen nbsp
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Carbon Stripping – Denver Mineral Engineers

Acid washing is currently being done both in a separate vessel from the stripping column and in the elution vessel Factors favoring acid washing in the elution vessel include 1 eliminating a carbon transfer which reduces gold losses from fine carbon breakage of loaded carbon 2 conservation of heat if hot acid washing nbsp
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ReversedPhase C18 Columns ODS

・Low carbon ODS YMCPack PolymerC18 6 2 0〜13 0 ・Polymerbased ODS 54 55 10 Types and characteristics of C18 packing materials YMCTriart C18 is a hybrid silica based ODS column emphasizing durability low operating pressure and excellent performance change elution conditions
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Elution Column Manufacturer Steel Fabrication Elution

elution columns Among the major stainless steel products that STEGEL is provisioned to manufacture are elution columns which are used for gold recovery The use of elution columns in gold recovery is a cost effective method of recovering gold from the sediment in mine dumps and other areas in which gold particles reside
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Modular Elution Circuits with Gold Room Como Engineers

By pressurising the electrowinning cell the gold cyanide complex in electrowinning is destabilised and increases the electrowinning efficiency lowering solution tenors returning back to the elution column and providing the optimal kinetics for rapid eluting of the precious metals off the loaded carbon
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OPTIMIZING THE OPERATING CONDITIONS OF GOLD

2 NaOH is pumped to the elution column and is pre heated by the solution leaving the column The temperature is further raised by a steam heat exchanger After stripping the gold from the carbon the solution is partially cooled in the incoming heat exchanger and further cooled to below its ambient boiling point in a cooler heat exchanger
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Largescale singlechirality separation of singlewall carbon Nature

May 10 2011 To investigate the overloading effect we prepared two columns Cols 1 and 2 each filled with the same amount 1 4 ml of allyl dextranbased sizeexclusion gel Fig 1a A total of 1 and 8ml SWCNT dispersions in a 2 wt aqueous SDS solution were applied to Cols 1 and 2 respectively After elution of nbsp
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Carbon Nanotubes by Stepwise Elution Gel Chromatography

Sep 25 2017 In this work we demonstrated 6 5 singlechirality separation from CoMoCAT SWCNTs using the stepwise elution gel column chromatography By optimizing the mixed surfactant concen tration for the stepwise elution 0 43mg of the 6 5 SWCNTs were separated with a separation yield of 24 per loaded nbsp
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Copper Elution for increasing the Gold rate at the Loaded Carbon

Dec 11 2016 In the case of Zadra elution where the electrowinning cell is in series with the elution column the column and cell must be designed to elute and recover the gold by recirculation of the eluant until the gold content of the eluted carbon is low enough lt100 g t to be reactivated and returned to the adsorption nbsp
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AARL Carbon Stripping System Operation Elution amp Electrowinning

After rinsing the carbon is pressure transferred to the elution column Water is injected into the acid wash column via valve AV 404 to maintain pressure within the column and force the loaded carbon out through valve AV 406 into the carbon transfer line Additional water is forced nbsp
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Elution Acid Wash Carbon Transfer Vessels

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 available pressure vessel codes including ASME VIII EN13445 B51 14 or AS1210 the vessels can be manufactured from carbon steel boiler plate for
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The mechanism of elution of gold cyanide from activated carbon

Nov 29 1993 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 nbsp
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The elution of gold from activated carbon at room SAIMM

success of the process as a whole there remains much scope for improvement One such area is the elution of gold cyanide from loaded carbon In the Zadra process a hot solution of caustic cyanide typically comprising about 0 5 per cent NaCN and 1 0 to 2 0 per cent NaOH is recirculated through an elution column and
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Adsorption and Elution Column The Nile Co Ltd

Adsorption and Elution Column Adsorbent Activated carbon Number of adsorption columns PCS 2 6 Number of adsorption columns m 0 6 Height m 1 8 Carbon weight kg 30kg Carbon ratio About one third Carbon particle size mm 0 991~3 327 Stainless steel screen mm 0 833 Installation method Series connection
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