van der merwe fundamentals of elution of gold cyanide

van der merwe fundamentals of elution of gold cyanide

  • The process design of gold leaching and carboninpulp SAIMM

    Gold. Steam. Eluant. Cyanide hydroxide. Hydrochloric acid. Loaded carbon. Cyanide air/oxygen. Lime flocculant. Run of mine ore. Process works. Project feasible. Project High rate thickeners, as well as dewatering systems that pp. 323–331. VAN DER MERWE, P.F. Fundamentals of the elution of gold cyanide from.

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  • The appliion of activated carbon for the adsorption and elution of

    Keywords activated carbon, adsorption, elution, platinum group metals, cyanide. * Department of Process Engineering, University of. Stellenbosch, Matieland, South .. profiles at this temperature found in the literature (Van der. Merwe, 1991). Typical industrial gold elution temperatures range from 110–130°C. As previously 

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  • The process design of gold leaching and carboninpulp SAIMM

    Gold. Steam. Eluant. Cyanide hydroxide. Hydrochloric acid. Loaded carbon. Cyanide air/oxygen. Lime flocculant. Run of mine ore. Process works. Project feasible. Project High rate thickeners, as well as dewatering systems that pp. 323–331. VAN DER MERWE, P.F. Fundamentals of the elution of gold cyanide from.

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  • effect of temperature, contact time and agitation speed during pre

    The pronounced effect of the caustic cyanide (NaOHNaCN) pretreatment step of the. Anglo American Research Laboratory (AARL) gold (Au) elution process has been widely investigated. However Deventer and Van Der Merwe (1994), high pretreatment temperature yields improved. Au elution recovery than low 

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  • Download Mintek

    submergedarc furnaces. X Online cyanide measurement and provenance studies. Mintek Global Activities. Gold. X Evaluation and design of recovery circuits, carbon/ resin adsorption, elution, electrowinning. Leach optimisation and .. Arjun, Wendy van der Merwe, Bart Groeneveld and Aobakwe Motlhake. — received a 

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  • The adsorption and elution of Pt, Pd and Au cyanide using

    PGM cyanide solution onto the activated carbon revealed that with an increase in temperature, the amount of PGMs . gold related literature (Van Der Merwe and Van Deventer, 1990, Stange, 1990), is confirmed. As can be seen from the references listed, most of the fundamental research regarding the elution process 

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  • Banini George Agbeko._Modelling of the elution pro WIReDSpace

    MRL ~nd Zadra' elution processes where stripping is done without cyanide. Goldand sil~:erare recovered from the pregna~tsolution by either electrowin!ling. (),) . 1 thrgugh fundamental study of the ~fctors affectg, the process. Van der Merwe, P.F., Fundamentals oHlie elution of gold cyanide from activated carboni.

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  • OPTIMIZING THE OPERATING CONDITIONS OF GOLD ELUTION

    rate, free caustic soda concentration and cyanide strength, were evaluated first for the elution process. .. Van Deventer (1986) discovered a much faster rate of elution of gold cyanide for carbon that was preloaded for 15h Van der Merwe, P.F. (1991), Fundamentals of the elution of gold cyanide from activated carbon,.

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  • The role of cyanide in the multicomponent elution 911 Metallurgist

    equilibrium isotherm for gold loading (Van der Merwe, 1991). The interdependence of factors affecting the elution of activated carbon makes this process difficult to model. Temperature, ion and cyanide concentration, and pH of the solution are the most important factors affecting the elution process (Van. Deventer and 

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  • Dynamic simulation of the carboninpulp and carboninleach

    Metal recovery or concentration by adsorption on activated carbon has been the dominant process for gold extraction after leaching by cyanide in aerated alkaline 1987 Woollacott et al., 1990 Stange et al., 1990a,b Stange, 1991, 1999 van Deventer and Ross, 1991 van der Walt and van Deventer, 1992 Schubert et al.

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  • the adsorption and elution of platinum group metals SAIMM

    This paper investigates the recovery of platinum group metals (PGMs) from a dilute cyanide leach solution containing activated carbon almost to completion in 4 to 5 bed volumes at 80°C, while the elution of gold at this temperature is of gold adsorption onto activated carbon (Van Deventer and Van Der Merwe 1994).

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  • Anomalous Radiochemical Recovery of PostDetonation Gold

    Jun 17, 2014 Metalliferous mining – processing / elution & carbon reactivation resource book. 12. Van Deventer JSJ, Van der Merwe PF (1994) The mechanism of elution of gold cyanide from activated carbon. Metall Mater Trans B 25: 

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  • OPTIMIZING THE OPERATING CONDITIONS OF GOLD ELUTION

    rate, free caustic soda concentration and cyanide strength, were evaluated first for the elution process. .. Van Deventer (1986) discovered a much faster rate of elution of gold cyanide for carbon that was preloaded for 15h Van der Merwe, P.F. (1991), Fundamentals of the elution of gold cyanide from activated carbon,.

    >>Details
  • The role of cyanide in the multicomponent elution 911 Metallurgist

    equilibrium isotherm for gold loading (Van der Merwe, 1991). The interdependence of factors affecting the elution of activated carbon makes this process difficult to model. Temperature, ion and cyanide concentration, and pH of the solution are the most important factors affecting the elution process (Van. Deventer and 

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  • Factors affecting the elution of gold cyanide from activated carbon

    Trans. B, 20B (1989), pp. 315325. 3. P.F. Van der Merwe, J.S.J. Van DeventerGeneralized simulation of Zadra and AARL elution columns. Proceedings of the 14th Congress of CMMI, Edinburgh, Scotland, Inst. Min. Metall (1990), pp. 161171. 4. M.D. Adams, M.J. NicolThe kinetics of the elution of gold from activated carbon.

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  • The appliion of activated carbon for the adsorption and elution of

    Keywords activated carbon, adsorption, elution, platinum group metals, cyanide. * Department of Process Engineering, University of. Stellenbosch, Matieland, South .. profiles at this temperature found in the literature (Van der. Merwe, 1991). Typical industrial gold elution temperatures range from 110–130°C. As previously 

    >>Details
  • Removal of cyanide from water and wastewater using granular

    Bureau of Reclamation, Tech [31] P.F. Van der Merwe, Fundamentals of the elution of gold cyanide from activated nical Service Center: Water Treatment Engineering and Research Group, 2001, carbon, Ph.D. Thesis, University of Stellenbosch, South Africa, 1991, p. 453. p. 1. [32] J.S.J. Van Deventer, P.F. Van Der Merwe, 

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  • Day 52, Methods to recover Gold II Rio Suerte

    In order to enhance gold extraction by cyanidation, the gold grains (or micrograins in some ores) must be fully wetted by the cyanide so that the solidliquid means of leaching the gold ore, but rather to gain a understanding of the basic concepts concerning the cyanidation process as the leaching circuit is part of the basic 

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  • World Gold Conference 2015 Mintrex

    Sep 1, 2015 Improving process performance of gold cyanide leaching reactors. M. LatvaKokko, T. Hirsi, T. Ritasalo, and. J. Tiihonen, Outotec. 14:35–15:00. Aachen ReactorsTM, a proven system to realise hidden economic potentials. P. Lotz, J. van der Merwe, S. Mogashoa,. S. Flatman, and R. Imhof. Maelgwyn Mineral 

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  • THE CHEMISTRY OF THE CARBONINPULP WIReDSpace

    basic functional groups within the micropore, which act as solvating agents for Elution of the Carbon. 21 c). Precipitation of AuCN. 21 d). Decomposition of AuCN. 22 e). Oxygen Effect Experiments. 22 f). Gold(XII) Cyanide Experiments. 23 g) The most recent study, by Van der Merwe and Van DeventerƇ showed that 

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  • Factors affecting the elution of gold cyanide from activated carbon

    Trans. B, 20B (1989), pp. 315325. 3. P.F. Van der Merwe, J.S.J. Van DeventerGeneralized simulation of Zadra and AARL elution columns. Proceedings of the 14th Congress of CMMI, Edinburgh, Scotland, Inst. Min. Metall (1990), pp. 161171. 4. M.D. Adams, M.J. NicolThe kinetics of the elution of gold from activated carbon.

    >>Details
  • the adsorption and elution of platinum group metals SAIMM

    This paper investigates the recovery of platinum group metals (PGMs) from a dilute cyanide leach solution containing activated carbon almost to completion in 4 to 5 bed volumes at 80°C, while the elution of gold at this temperature is of gold adsorption onto activated carbon (Van Deventer and Van Der Merwe 1994).

    >>Details
  • FACTORS AFFECTING THE ELUTION OF GOLD CYANIDE Scribd

    The aim of this study was to investigate the fundamentals of elution and not to obtain the highest possible elution efficiencies.e. reagent cyanide addition and ionic VAN DER MERWE Cyanide and hydroxide salts are added during both the AARL and Zadra elution procedures to enhance the elution of the gold cyanide.

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  • The adsorption and elution of Pt, Pd and Au cyanide using

    PGM cyanide solution onto the activated carbon revealed that with an increase in temperature, the amount of PGMs . gold related literature (Van Der Merwe and Van Deventer, 1990, Stange, 1990), is confirmed. As can be seen from the references listed, most of the fundamental research regarding the elution process 

    >>Details
  • Banini George Agbeko._Modelling of the elution pro WIReDSpace

    MRL ~nd Zadra' elution processes where stripping is done without cyanide. Goldand sil~:erare recovered from the pregna~tsolution by either electrowin!ling. (),) . 1 thrgugh fundamental study of the ~fctors affectg, the process. Van der Merwe, P.F., Fundamentals oHlie elution of gold cyanide from activated carboni.

    >>Details
  • Flowsheet Develpoment and Compasrison for the CiteSeerX

    platinum and palladium cyanide complexes and poor gold elution efficiencies. The gold concentrations in the feed streams to these processes were, however, very low, at only 8.5% of the total precious metal Die Platriferts, geleë in die Bosveld Kompleks, is een van die wêreld se grootste platinum groep metaal (PGM) 

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  • Leaching and Adsorption of Gold from Waste Printed Circuit Boards

    Aug 1, 2016 The utilization of cyanide in the gold leaching process presents risks to fundamentals of gold recovery from pregnant goldiodide aqueous solution using activated carbon [17], ionexchange [18] .. [13] J. S. J. Van Deventer, P. F. Van Der Merwe, "The reversibility of adsorption of gold cyanide on activated 

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  • FACTORS AFFECTING THE ELUTION OF GOLD CYANIDE Scribd

    The aim of this study was to investigate the fundamentals of elution and not to obtain the highest possible elution efficiencies.e. reagent cyanide addition and ionic VAN DER MERWE Cyanide and hydroxide salts are added during both the AARL and Zadra elution procedures to enhance the elution of the gold cyanide.

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