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leaching of gold copper ores with ammoniacal cyanide solutions in tanzania

leaching of gold copper ores with ammoniacal cyanide solutions in tanzania

high consumption of cyanide and oxygen coupled with low extraction of gold Copper cyanide species if present at high levels adversely affects the downstream processes such as the activated carbon adsorption and the effluent treatment In this study the extraction of gold from a copperbearing gold ore by ammoniacal cyanide leaching was ...As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.

Customer Case

  • Gold Ore Concentration Plant

    Gold Ore Concentration Plant

    Gold ore whose types of deposits are diverse and complex is the mineral assemblage of gold. With features of chalcophile affinity and high melting point, the gold ore includes conglomerate type, porphyry type, quartz vein type and volcanic rock type, etc.

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  • Gold Mine Processing Line In South Africa

    Gold Mine Processing Line In South Africa

    Related Equipments: PE-750×1060 Jaw crusher , PYFB-0918 Hydraulic cone crusher and 3YK1548 vibrating screen .

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  • Mobile Crushing Plant for Granite in Mali

    Mobile Crushing Plant for Granite in Mali

    This customer is from a construction company in Bamako, Mali. According to our customer's high demand of production capacity and granularity of finished production, our engineer assembled 2 mobile crushing stations of FTM1142E710 model and FTM3S186PYF13 m

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  • Coal Crushing Plant in Russia

    Coal Crushing Plant in Russia

    Purchasing equipment: mobile crushing station with models of FTM938E69 and FTM935F1214L as well as belt conveyor with types of B800×10m, B800×12m, B800×14m, B800×18m and B650×15m.

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Projects Detail

  • TREATMENT OF A COPPER  RICH GOLD ORE BY

    TREATMENT OF A COPPER RICH GOLD ORE BY

    high consumption of cyanide and oxygen coupled with low extraction of gold Copper cyanide species if present at high levels adversely affects the downstream processes such as the activated carbon adsorption and the effluent treatment In this study the extraction of gold from a copperbearing gold ore by ammoniacal cyanide leaching was

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  • PDF Treatment of a CopperRich Gold Ore by Ammonia

    PDF Treatment of a CopperRich Gold Ore by Ammonia

    In this study the extraction of gold from a copperbearing gold ore by ammoniacal cyanide leaching was studied Furthermore ammonia leaching as a pretreatment process ahead of cyanide leaching

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  • Study of gold leaching in oxygenated solutions containing

    Study of gold leaching in oxygenated solutions containing

    Gold and copper often occur together in ores an occurence which creates processing difficulties since cyanide solutions are not selective for gold Although it has been shown that ammoniacal cyanide solutions can leach gold selectively little practical use has been made of this finding since the mechanism is not yet understood and strategies for optimisation have not been fully developed

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  • Treatment of a CopperRich Gold Ore by Ammonia

    Treatment of a CopperRich Gold Ore by Ammonia

    In this study ammoniacal cyanide leaching of gold for the treatment of a copperrich refractory gold ore was investigated Ammonia leaching as a pretreatment process ahead of cyanidation was also examined Some additives were tested to reduce the copper interferences Direct cyanide leaching of gold was carried out for comparison

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  • Ammoniacal thiosulphate leaching of gold ore

    Ammoniacal thiosulphate leaching of gold ore

    studied The ammoniacal thiosulphate leaching of gold is dependant on both ammonia and thiosulphate concentration The leaching is improved significantly at a particular ratio of ammonia to thiosulphate concentration and that ratio varies from ore to ore Copper ions act as an oxidant and the gold dissolution increases substantially in the presence of them The gold leaching is minimum in the

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  • AMMONIACAL THIOSULPHATE LEACHING OF A COPPER

    AMMONIACAL THIOSULPHATE LEACHING OF A COPPER

    Cyanide leaching of the ore resulted in a gold extraction of only 22 while gold extractions as high as 62 were achieved by ammoniacal thiosulphate leaching The concentrations of thiosulphate S2O3 2 and ammonia NH

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  • Gold leaching in cyanidestarved copper solutions in the

    Gold leaching in cyanidestarved copper solutions in the

    The results show that in the presence of glycine gold dissolution rate increases significantly in solutions containing copper–cyanide species at a very low or zero free cyanide concentration In the presence and absence of glycine gold dissolution rates in solutions containing 10 mM CuCN 3 2 − were 111 μmolm 2 ·s and 065 μmolm

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  • PDF Cyanide Leaching of CopperGoldSilver Ores

    PDF Cyanide Leaching of CopperGoldSilver Ores

    However acid leaching is not able to recover the gold and silver contained in some copper ores and thus unable to capture their economic benefits In this work the feasibility of using alkaline

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  • Gold recovery from ammoniathiosulfate leaching solution

    Gold recovery from ammoniathiosulfate leaching solution

    Nov 01 2019 · One of the most highlystudied replacements for cyanide as a method for the treatment of problematic gold ores is the thiosulfate leaching process Thiosulfate is considered a nontoxic alternative to cyanide and can leach gold more rapidly than cyanide in certain cases Fleming et al 2018 Xu et al 2016 Xu et al 2015 Gold is dissolved in aerated thiosulfate leaching solution containing

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  • Leaching of GoldCopper Ores Using Ammoniacal Cynide

    Leaching of GoldCopper Ores Using Ammoniacal Cynide

    The copper content is often assessed as being of nuisance value as the ores are generally of the grade or type which can support neither a copper project nor a straight gold project due to the interference of copper Many of these problematical goldcopper ores could possibly be processed economically for gold recovery using a novel ammoniacal cyanide leaching system which utilises a copperammoniacyanide complex as an effective lixiviant for gold

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