MENU
crusher
  1. Home
  2. /
  3. crusher
  4. /
  5. ammoniacal thiosulfate leaching of gold ore

ammoniacal thiosulfate leaching of gold ore

Jul 10 2017 · The ammoniacal thiosulfate leaching of the ore was investigated as a function of time The results are given in Fig 7 As it is seen the gold extraction increases with increase in time and attains 40 after 2 h leaching

Get Price

Customer Case

Solutions >>
PDF Ammoniacal thiosulphate leaching of gold ore
PDF Ammoniacal thiosulphate leaching of gold ore

Ammoniacal thiosulfate leaching of refractory oxide gold ore was investigated According to Xray fluorescence and fire assay analyses the ore contained about 3301 wt Si 853 wt Al 726 wt

Online Chat
A study of thiosulfate leaching of gold from carbonaceous
A study of thiosulfate leaching of gold from carbonaceous

While a high percent extraction of gold was obtained from the carbonaceous ore poor recovery of gold was observed from the sulfide ore which is also a refractory ore as is the carbonaceous ore A comparison of thiosulfate with cyanide leaching of gold from carbonaceous ore showed that thiosulfate is chemically better and economically more advantageous

Online Chat
PDF Ammoniacal thiosulfate leaching of gold from a
PDF Ammoniacal thiosulfate leaching of gold from a

is a platform for academics to share research papers

Online Chat
Ammoniacal thiosulfate and sodium cyanide leaching
Ammoniacal thiosulfate and sodium cyanide leaching

gold leached from the carbonaceous matter to its initial gold content Ammoniacal thiosulfate leaching of carbonaceous matter from autoclaved Goldstrike ore resulted in 90–100 solubilization of the gold initially present regardless of the pregrobbing behavior of the parent ore

Online Chat
EXTRACTION OF GOLD AND SILVER FROM TURKISH
EXTRACTION OF GOLD AND SILVER FROM TURKISH

EXTRACTION OF GOLD AND SILVER FROM TURKISH GOLD ORE BY AMMONIACAL THIOSULPHATE LEACHING FATMA ARSLAN1 AND BARIS¸ SAYINER2 1Mining Faculty Mining Engineering Department Mineral and Coal Processing Section Istanbul Technical University Maslak Istanbul Turkey 2Koza Altın I˙s¸letmeleri AS¸ Ovacık Gold Mine Bergama Izmir Turkey

Online Chat
Sodium Thiosulphate Gold Leaching
Sodium Thiosulphate Gold Leaching

Ammoniacal thiosulphate leaching of gold ore Thiosulphate as an Alternative to Cyanide for Gold Processing HYPOCHLORITE LEACHING OF GOLD ORE TREATMENT OF A COPPER RICH GOLD ORE BY AMMONIA ASSISTED CYANIDE LEACHING Electrochemistry and Mechanism of Leaching Gold with Ammoniacal Thiosulphate Recovery Of Gold And Silver From Oxidation Leach Residues By

Online Chat
Associated Sulfide Minerals in Thiosulfate Leaching of
Associated Sulfide Minerals in Thiosulfate Leaching of

of gold The leaching kinetics was significantly slower than that of the conventional thiosulfatecopperammonia leaching The consumption of thiosulfate however was largely reduced This leaching system worked effectively on the reference gold ore within a wider pH range eg 611 with or

Online Chat
Thiosulfate Leaching of Gold a Review  PDF Document
Thiosulfate Leaching of Gold a Review PDF Document

Jul 16 2016 · The ammoniacal thiosulfate leaching process for gold and silver extraction has been reviewed in terms of leaching mechanism thermodynamics thiosulfate stability and gold recovery options The application to different ore types and process options have also been discussed

Online Chat
Ammoniacal thiosulphate leaching of gold ore
Ammoniacal thiosulphate leaching of gold ore

gold ore samples from two different mines namely Akeshi and Hishikari of Japan thermometer to measure the temperature of th e leaching system and the

Online Chat
Treatment of a Polysulphide Ore by Ammoniacal
Treatment of a Polysulphide Ore by Ammoniacal

of agitation whereas ammoniacal thiosulfate leaching achieved an 809 of gold recovery in only one hour of agitation Then the ammoniacal thiosulfate solutions obtained were submitted to five gold recovery techniques carbon adsorption cementation

Online Chat
Gold recovery from refractory gold concentrates by
Gold recovery from refractory gold concentrates by

be exposed Mohammadi et al investigated ammoniacal thiosulfate leaching of refractory oxide gold ore and they obtained maximum gold extraction of 55 Mohammadi et al 2017 Shen et al had researched the direct thiosulfate leaching of gold from refractory ore and they achieved gold recovery of only 70 Shen et al 2013

Online Chat
Gold and silver extraction by ammoniacal thiosulfate
Gold and silver extraction by ammoniacal thiosulfate

title Gold and silver extraction by ammoniacal thiosulfate leaching from a rhyolite ore abstract An investigation has been carried out to identify the parameters of importance in the dissolution of gold and silver values from an ore using ammoniacal thiosulfate solutions containing copper

Online Chat
A Review of Ammoniacal Thiosulfate Leaching of Gold An
A Review of Ammoniacal Thiosulfate Leaching of Gold An

This literature review provides an update of ammoniacal thiosulfate as a potential lixiviant of gold the history of thiosulfate leaching and recent progress on thiosulfate leaching of gold as well as the production oxidation and stabilization of thiosulfate The leaching results of different types of gold ores including oxide sulfide

Online Chat
thiosulphate leaching of gold from ores
thiosulphate leaching of gold from ores

gold ore leaching in cameroon metalbeach gold ore leaching in cameroonOutline of mining WikipediaThe following outline is provided as an overview of and Ammoniacal thiosulphate leaching of gold ore Coppercatalyzed thiosulfate leaching of lowgrade gold or

Online Chat
Gold and silver extraction by ammoniacal thiosulfate
Gold and silver extraction by ammoniacal thiosulfate

title Gold and silver extraction by ammoniacal thiosulfate leaching from a rhyolite ore abstract An investigation has been carried out to identify the parameters of importance in the dissolution of gold and silver values from an ore using ammoniacal thiosulfate solutions containing copper

Online Chat
Thiosulfatecopperammonia leaching of pure gold and
Thiosulfatecopperammonia leaching of pure gold and

In thiosulfate gold leaching Cu2 ions are commonly used as oxidizing agents while the thiosulfate ion acts as a ligand forming a soluble gold thiosulfateammonia complex Aylmore and Muir 2001 It was suggested that gold leaching in the absence of Cu2 ions with an external current acting as a oxidizer is not possible

Online Chat
Conference Proceeding AMMONIACAL THIOSULPHATE LEACHING
Conference Proceeding AMMONIACAL THIOSULPHATE LEACHING

This study has shown that ammoniacal thiosulphate leaching system in the presence of cupric copper Cu2 can be used for the leaching of gold from copperrich gold ores The extraction of gold by cyanide leaching from the ore was unacceptably low while up to 62 Au extraction was achieved by ammoniacal thiosulphate leaching

Online Chat
Ammonium Thiosulfate Heap Leaching  Technische
Ammonium Thiosulfate Heap Leaching Technische

A Comparison of Cyanide and Thiosulfate Leaching for the Recovery of Gold from a Copper Containing Ore Dai X 139 A Review of the Chemistry Electrochemistry and Kinetics of the Gold Thiosulfate Leaching Process Breuer P L Jeffrey M Alloy Formation During the Cementation of Gold on Copper from Ammoniacal Thiosulfate Solutions

Online Chat
Gold recovery from refractory gold concentrates by
Gold recovery from refractory gold concentrates by

that gold recovery is difficult by thiosulfate leaching without any pretreatment and the recovery of gold only is 101 After roasting and oxidizing the gold leaching rate increases substantially The leaching rate of gold reaches 712 with the optimal leaching technological parameters Li et al

Online Chat
thiosulfate leaching  Gold Refining
thiosulfate leaching Gold Refining

May 19 2011 · Has anyone here actually used thiosulfate for leaching gold oreand had positive resultsthat can be repeatable as a real leaching process Has anyone found a real working precipitation process to recover the goldthat works welland is dependable Also getting the gold out of the precipitates seems to be a real pain

Online Chat
US6632264B2  Gold recovery from thiosulfate leaching
US6632264B2 Gold recovery from thiosulfate leaching

Processes for recovering gold from coppergold ores thiosulfate leaching or gold ores copper catalyzed thiosulfate leaching using ion exchange technology are disclosed The processes include subjecting the goldbearing and copperbearing thiosulfate solution to a pH andor temperature adjustment to reduce tetrathionate concentration in the thiosulfate solution prior to contacting with an ion exchange resin

Online Chat
Ammoniacal thiosulfate leaching of refractory oxide gold ore
Ammoniacal thiosulfate leaching of refractory oxide gold ore

Ammoniacal thiosulfate leaching of refractory oxide gold ore Ammoniacal thiosulfate leaching of refractory oxide gold ore was investigated According to Xray fluorescence and fire assay analyses the ore contained about 3301 wt Si 853 wt Al 726 wt K 300 wt Fe and 280 ppm Au

Online Chat
WO1997049474A1  Process for the recovery of precious
WO1997049474A1 Process for the recovery of precious

After leaching of the ore with an aqueous ammoniacal thiosulfate solution the leach solution is contacted with a precious metal extraction reagent to extract the precious metal values from the leach solution after which the precious metal values are stripped from the extraction reagent to form a concentrated solution of the precious metal values from which the precious metals may be recovered by conventional

Online Chat
The role of ligands and oxidants in thiosulfate leaching
The role of ligands and oxidants in thiosulfate leaching

have lead to investigations on nonammoniacal thiosulfate processes In the absence of added ammonia and copperII the thiosulfate leaching of gold has been carried out at high temperatures up to 80°C and at oxygen partial pressures up to 100 psig 19 For example a carbonaceous ore of gold grade 910 Au gt contained 818 of gold

Online Chat
Ammoniacal thiosulfate and sodium cyanide leaching of
Ammoniacal thiosulfate and sodium cyanide leaching of

Mar 01 2001 · Ammoniacal thiosulfate leaching of carbonaceous matter from autoclaved Goldstrike ore resulted in 90–100 solubilization of the gold initially present

Online Chat
A Review of Ammoniacal Thiosulfate Leaching of Gold An
A Review of Ammoniacal Thiosulfate Leaching of Gold An

This literature review provides an update of ammoniacal thiosulfate as a potential lixiviant of gold the history of thiosulfate leaching and recent progress on thiosulfate leaching of gold as well as the production oxidation and stabilization of thiosulfate The leaching results of different types of gold ores including oxide sulfide carbonaceous and refractory oresconcentrates and the fundamentals

Online Chat
AMMONIUM THIOSULFATE LEACHING OF AN OXIDE
AMMONIUM THIOSULFATE LEACHING OF AN OXIDE

ln the present work tbe application of ammoniacal thiosulfate leaching to the processing of a Brazilian oxide goldcopper ore rich in cyanide soluble copper was investigated The main objective was to establish the efiect of the relative concentrations of the maio reagents ammonia Cu2 oxygen and thiosulfate on gold

Online Chat
thiosulphate leaching of gold from ores
thiosulphate leaching of gold from ores

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 S2O32 and ammonia NH3 were identified to be statistically significant factors affecting the extraction of gold while the effect of

Online Chat
Ammoniacal thiosulfate leaching of refractory oxide gold ore
Ammoniacal thiosulfate leaching of refractory oxide gold ore

Ammoniacal thiosulfate leaching of refractory oxide gold ore According to Xray fluorescence and fire assay analyses the ore contained about 3301 wt Si 853 wt Al

Online Chat
how to use sodium thiosulfate to leach gold
how to use sodium thiosulfate to leach gold

sodium thiosulfate use for gold leaching US6344068B1 Process for recovering gold from thiosulfate leach A process for recovering gold from thiosulfate leach solutions and slurries in or sodium lauryl sulfate have been used to further deactivate carbon in the ore 247 online sodium thiosulfate use

Online Chat
Effect of additives on thiosulfate leaching of a gold ore
Effect of additives on thiosulfate leaching of a gold ore

thiosulfate leaching of gold and the stability of thiosulfate and gold thiosulfate species Specifically sulfide minerals retard gold leaching and catalyse the degradation of thiosulfate and gold thiosulfate Other reductants eg carbonaceous matter have also been found to

Online Chat
Ammoniacal thiosulphate leaching of gold in the presence
Ammoniacal thiosulphate leaching of gold in the presence

Aug 01 2006 · Ammoniacal thiosulphate leaching of gold in the presence of pyrite Special emphasis was placed on gold leaching in association with pyrite dissolution thiosulphate decomposition and gold leaching passivation

Online Chat
ammonium thiosulfate leaching gold
ammonium thiosulfate leaching gold

The use of copper as a alyst for gold leaching in ammonium thiosulfate solution might cause the high consumption of On a 100 mass 75 цm of silie type gold ore containing 16 gt Au and iodine thiocyanate and thiosulfate1624 Among these lix was dried in an oven and assayed for gold

Online Chat
Gold dissolution in nonammoniacal thiosulphate solutions
Gold dissolution in nonammoniacal thiosulphate solutions

Recently thiosulphate leaching of gold in the absence of ammonia has shown to be one of the most promising alternatives to cyanide as evident from the thiosulphate gold processing plant recently commissioned at Barrick Goldstrike for treating pressureoxidized double refractory ore

Online Chat
Leaching of Gold from the Waste Mobile Phone Printed
Leaching of Gold from the Waste Mobile Phone Printed

Thiourea is a noncyanide lixiviant for gold leaching which efficiently recovers gold 3 but this is not an economical route for the gold leaching due to its high consumption and cost Thiosulfate leaching to recover gold from ores is known for several decades but extensive researches have been started only for the past two decades 4

Online Chat
Alternative lixiviants to cyanide for leaching gold ores
Alternative lixiviants to cyanide for leaching gold ores

Initial bisulfideleaching tests using the YES process attained 25–31 gold extraction from a biooxidized Nevada ore compared with 88 by conventional cyanide leaching Hunter et al 1998 At the same time 39–81 silver was recovered compared to 86 with cyanide

Online Chat
gold ore processing leaching
gold ore processing leaching

Ammoniacal thiosulfate leaching of refractory oxide gold ore · Ammoniacal thiosulfate leaching of refractory oxide gold ore was investigated According to Xray fluorescence and fire assay analyses the ore contained about 3301 wt Si 853 wt Al 726 wt K 300 wt Fe and 280 ppm Au

Online Chat
Substitution Recovery of Gold from CopperEthylenediamine
Substitution Recovery of Gold from CopperEthylenediamine

Jul 27 2018 · The substitution method of recovering gold from thiosulfateethylenediamine enCu2 leaching solution using copper powder was studied The effects of reaction time stirring speed pH thiosulfate concentration enCu2 molar ratio CuAu mass ratio and temperature on gold recovery were systematically examined

Online Chat
top
shangwutong