Screening Equipment

Screening Equipment

A kind of advanced vibrating screen with circular motion Inquire Now

Classification Equipment

Classification Equipment

A traditional and widely using vibrating screen machine. Inquire Now

Grinding Equipment

Grinding Equipment

A grinding equipment with steel rod as medium Inquire Now

Flotation

Flotation

A self-air suction mechanical stirring floatation cell without slurry suction (Referring to the design of USA wemco flotation machine) Inquire Now

Hydrocyclone

Hydrocyclone

A hydrocyclone with involute feeding Inquire Now

Pumps

Pumps

A slurry pump for conveying pulp with concentration below 65%. Inquire Now

Transmission Equipment

Transmission Equipment

A belt conveyor with short distance and large inclination angle. Also called belt conveyor with high inclination angle and waved guard side.Inquire Now

Gravity Separation Equipment

Gravity Separation Equipment

An equipment realizes the separation of light and heavy mineral by the different sedimentation speed in vertical alternating water flow Inquire Now

Magnetic Equipment

Magnetic Equipment

A dry magnetic separator for strong magnetic minerals with coarse particles, and it is also called magnetic pulley. Inquire Now

Dewatering Equipment

Dewatering Equipment

A vacuum filter with vertical discs consisted of fanning plates Inquire Now

Agitation Equipment

Agitation Equipment

Agitation equipment which forces the slurry to take up and down circulation Inquire Now

Gold Extraction Equipment

Gold Extraction Equipment

Through the American process design, the leaching leaching tank is a cyanide leaching equipment. Inquire Now

Valves

Valves

A Knife Gate Valve with spool made of wear-resistant rubber developed by international advanced technoloy.Inquire Now

Thickening Equipment

Thickening Equipment

A new efficient thickening equipment independently developed by Xinhai.Inquire Now

Crushing Equipment

Crushing Equipment

Xinhai jaw types of crusher with high production capacity, large reduction ratio and high crushing efficiency Inquire Now

Iron Removal Equipment

Iron Removal Equipment

An electromagnetic induction device for detecting iron parts of conveying belt material Inquire Now

Automatic Control Equipment

Automatic Control Equipment

A weighting equipment for metering belt conveying capacity with simple structure and advanced technology Inquire Now

Feeding

Feeding

A feeder with periodic reciprocating motion for fine particles Inquire Now

  • A Review of Thiosulfate Leaching of Gold Focus on

    leaching is a promising alternative to cyanidation, and the main hindrances for its wide commercial application are the high thiosulfate consumption and the difficult recovery of

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  • (PDF) Thiosulfate leaching of gold from waste mobile

    leaching of gold from waste mobile phones Ha V.H., Lee J.C., Jeong J., Hai H.T., Jha M.K. Institute for Environmental Science and Technology, Hanoi University of Technology (HUT), 1 Dai Co Viet, Hanoi, Viet Nam Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources (KIGAM), 92, Gwahangno, Yuseonggu, Daejeon 305350, South Korea Metal

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  • thiosulfate leach of gold plate YouTube

    24, 2014018332recovered powders from a sodium thiosulfate leach of gold plated pins. if all my experiments can be perfected, i will have a safe, nontoxic process to remove gold from gold

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  • Ammoniacal thiosulfate and sodium cyanide leaching of

    percentage of gold leached by ammoniacal thiosulfate was found to depend on the initial gold content of the carbonaceous matter since an equivalent, small amount of gold was taken up by all carbonaceous matters examined. Gold leaching was primarily limited by the volume of lixiviant contacting the carbonaceous

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  • Sodium thiosulfate

    thiosulfate is used in gold mining, water treatment, analytic chemistry, the development of silverbased photographic film and prints, and medicine. The medical uses of sodium thiosulfate include treatment of cyanide poisoning and pityriasis. It is on the World Health Organization's List

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  • Thiosulfate leaching of goldA review ScienceDirect

    leaching can be considered a nontoxic process, the gold dissolution rates can be faster than conventional cyanidation and, due to the decreased interference of foreign cations, high gold recoveries can be obtained from the thiosulfate leaching of complex and carbonaceoustype ores.

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  • Leaching of Gold from the Waste Mobile Phone Printed

    Leaching of Gold from the Waste Mobile Phone Printed Circuit Boards (PCBs) with Ammonium Thiosulphate Literature reveals that only limited studies have been carried out to recover the metals from waste mobile phonePCBs. Ammonium thiosulfate [(NH 4) 2 S 2 O 3] is a leachant which is nontoxic as well as economical. It works to stabilize gold as

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  • Leaching of Gold from the Waste Mobile Phone Printed

    The thiosulfate leaching of gold from waste PCBs exhibits that gold could be leached with good recovery under specific conditions. Recovery of gold was found to be highly dependent on the concentration of copper sulfate, ammonium thiosulfate, pH and pulp density.

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  • Kinetic studies of gold leaching from a gold concentrate

    15, 2019018332Another problem associated with the thiosulfate leaching of gold is the highcost gold recovery from its pregnant solution. Based on the comparative analysis for gold recovery techniques from pregnant thiosulfate solution , , , , , , , ionexchange resin adsorption is considered to be the most appropriate because the resin can be employed in the forms of resininleach and resininpulp, and

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  • A Review of Ammoniacal Thiosulfate Leaching of Gold An

    thiosulfate and chloride leaching appear to be the most favorable to replace cyanide (Aylmore, 2005). Ritchie et al. (2001) concluded that thiosulfate is the most promising alternative to cyanide for the recovery of gold from ores. The advantages and disadvantages of thiosulfate leaching of gold are listed below. Advantages

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  • Thiosulfate leaching of goldA review DeepDyve

    01, 2001018332Thiosulfate leaching of goldA review Thiosulfate leaching of goldA review Aylmore, M.G Muir, D.M 20010201 000000 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

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  • A Method for Leaching or Dissolving Gold from Ores or

    lurgical gold extraction routes utilize a leaching step to produce a goldbearing solution as an intermediate product while the recycling of secondary gold from electronic and precious metal scrap is based on the selective and fast dissolution of the precious metal. Therefore, A Method for Leaching or Dissolving Gold from Ores or Precious

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  • US5536297A Gold recovery from refractory carbonaceous

    process for recovering gold in which an ore slurry of refractory sulfidic and refractory carbonaceous ore having pregrobbing characteristics due to the presence of organic carbon is subjected to pressure oxidation in an autoclave. The oxidized ore slurry is mixed with a thiosulfate salt lixiviant, which mixture is maintained at a pH between 7 and 8.7 while the slurry is agitated in a

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  • Sodium thiosulfate

    thiosulfate is used in gold mining, water treatment, analytic chemistry, the development of silverbased photographic film and prints, and medicine. The medical uses of sodium thiosulfate include treatment of cyanide poisoning and pityriasis. It is on the World Health Organization's List

    Inquire Now
  • Sodium Thiosulphate Gold Leaching

    gold industry has been seeking alternative reagents for leaching gold from lowgrade ores for the past 25 years. The cost and transport of cyanide, the poor recovery of gold from carbonaceous ores, the lack of selectivity of cyanide towards copper minerals and the cost of waste treatment are real factors which can make cyanide unattractive in some circumstances.

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  • Effect of additives on thiosulfate leaching of a gold ore

    Effect of additives on thiosulfate leaching of a gold ore *S.J. Dai, P.C. Li, Q.Q. Wang , D.W. Feng University of Science and Technology, Liaoning, Anshan, China Received August 15, 2017, Revised November 15, 2017 The effect of additives on gold leaching was investigated using ammonium thiosulfate or calcium thiosulfate.

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  • thiosulfate leaching Gold Refining Forum

    19, 2011018332Has anyone here actually used thiosulfate for leaching gold ore,and had positive results,that can be repeatable as a real leaching process? Has anyone found a real working precipitation process to recover the gold,that works well,and is dependable? Also getting the gold out of the precipitates seems to be a real pain.

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  • Gold strike with thiosulphate MINING

    The first gold bar produced with the thiosulphate process was poured in late 2014 at Barricks Goldstrike plant in Nevada, USA and operations are ramping up to recover gold from four million

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  • Leaching of gold and silver from printed circuit board of

    The results for leaching gold with alternative reagents, sodium thiosulfate and ammonium hydroxide, show that the best extraction was achieved at 0.1M sodium thiosulfate and 0.2M ammonium hydroxide, when adding 0.1M of hydrogen peroxide as an oxidation agent, obtaining approximately 11% of gold.

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  • Treatment of a Polysulphide Ore by Ammoniacal Thiosulfate

    Thats why cyanidation and ammoniacal thiosulfate leaching was performed at 33% of solids concentration in order to compare the efficiency of both t echniques. Cyanidation delivered a gold recovery of 80.6% at 2 4 hours of agitation, whereas ammoniacal thiosulfate leaching achieved an 80.9% of gold recovery in only one hour of agitation.

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  • Using Nickel as a Catalyst in Ammonium Thiosulfate

    Nickel as a Catalyst in Ammonium Thiosulfate Leaching for Gold Extraction Harunobu Arima1, Toyohisa Fujita2 and WanTai Yen3 1Graduate Student, Queens University.Present address Akita Zinc Co., , Akita 0118555, Japan

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  • US6632264B2 Gold recovery from thiosulfate leaching

    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 and/or temperature adjustment to reduce tetrathionate concentration in the thiosulfate solution prior to contacting with an ion

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  • Treatment of a Polysulphide Ore by Ammoniacal Thiosulfate

    Thats why cyanidation and ammoniacal thiosulfate leaching was performed at 33% of solids concentration in order to compare the efficiency of both t echniques. Cyanidation delivered a gold recovery of 80.6% at 2 4 hours of agitation, whereas ammoniacal thiosulfate leaching achieved an 80.9% of gold recovery in only one hour of agitation.

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  • Thiosulfate Leaching as an Alternative to Cyanidation

    thiosulfate leaching has been applied to several mild refractory gold ores, such as, complex ore, refractory carbonaceous ores, copperbearing gold ores, ores containing lead and zinc, gold ores associated with sulfide minerals and the gold ore associated with manganese.

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  • Leaching of gold, silver and accompanying metals from

    % gold and 12 % silver into leach after 48 hours of leaching. The results for the same but the pretreated waste by milling have accelerated the process of thiosulfate leaching. Pretreatment enables to achieve for the ammonium thiosulphate leaching with ammonium 98 % gold and 93 % silver extraction after 48 hours of leaching (Fig. 2). 60 Fig. 2.

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  • A Method for Leaching or Dissolving Gold from Ores or

    lurgical gold extraction routes utilize a leaching step to produce a goldbearing solution as an intermediate product while the recycling of secondary gold from electronic and precious metal scrap is based on the selective and fast dissolution of the precious metal. Therefore, A Method for Leaching or Dissolving Gold from Ores or Precious

    Inquire Now
  • Thiosulfate leaching of gold A review Request PDF

    ammoniacal thiosulfate leaching process for gold and silver extraction has been reviewed in terms of leaching mechanism, thermodynamics, thiosulfate stability, and gold recovery options.

    Inquire Now
  • Study on Thiosulfate Leaching of Gold by Cycling Barren

    Thiosulfate leaching is widely recognized as one of the most promising alternatives to cyanidation for gold leaching, of which the action of cyclic barren solution is of great importance as far as its commercial application is concerned.

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  • Gold Cementation from Ammonium Thiosulfate Solution

    gold, zinc, copper, aluminium, thiosulfate, cementation 1. Introduction Ammonium thiosulfate leaching is an alternative gold extraction method to cyanidation because of its low toxicity.17) However, the gold recovery method from the leach solution was not widely studied. In our study of gold leaching,8) an

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  • Sodium thiosulfate

    thiosulfate is used in gold mining, water treatment, analytic chemistry, the development of silverbased photographic film and prints, and medicine. The medical uses of sodium thiosulfate include treatment of cyanide poisoning and pityriasis. It is on the World Health Organization's List

    Inquire Now
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