Beneficiation of the gold bearing ore by gravity and flotation

Gül, Alim; Kangal, Murat Olgaç; Sirkeci, Ayhan Ali; Önal, G.

doi:10.1007/s12613-012-0523-4

Cited by 27 publications

(13 citation statements)

References 8 publications

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“…Concentration of gold in e-scrap is comparable or even higher to that in gold ores. For example, boards of personal computers contain 10-1000 ppm Au [3], while an average gold content in ores and concentrates reaches up to 3-5 ppm and 4-6 wt%, respectively [4].…”

Section: Introductionmentioning

confidence: 99%

Kinetic studies of sorption and reduction of gold(III) chloride complex ions on activated carbon Norit ROX 0.8

Wojnicki

Luty–Błocho

Socha

et al. 2015

Journal of Industrial and Engineering Chemistry

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Section: Introductionmentioning

confidence: 99%

Kinetic studies of sorption and reduction of gold(III) chloride complex ions on activated carbon Norit ROX 0.8

Wojnicki

Luty–Błocho

Socha

et al. 2015

Journal of Industrial and Engineering Chemistry

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“…For example, in every one ton of the cellular phone waste, there are 200 grams Au. This is higher than the concentration of Au in the ore which is only 5-30 grams Au per ton-ore [2,3]. Therefore, many studies were conducted to find the effective methods for recovering gold from the electronic waste.…”

Section: Introductionmentioning

confidence: 97%

Isolation of humic acid from peat soil and its application as an adsorbent for AuCl4− in solution

Lestari¹

2017

AIP Conference Proceedings

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Abstract. Humic acid (HA) has been isolated from South Kalimantan (Indonesia) peat soil using alkali extraction method. The isolated HA then was applied on the adsorption process of AuCl 4 -in solution. Parameters investigated in the adsorption process consisted of the effect of initial pH, adsorption rate constant (k) and the adsorption capacity of AuCl 4 -on peat soil HA. The adsorption rate constant was determined according to the kinetic model proposed by Santosa (2007). The adsorption of AuCl 4 -on peat soil HA was optimum at pH 2. The adsorption rate constant (k) was 1.11 x 10 -3 min -1 . Adsorption of AuCl 4 -on peat soil HA fitted the Langmuir isotherm with the adsorption capacity of 90.91 mg.g -1 . The adsorption of AuCl 4 -on peat soil HA was accompanied by the reduction of AuCl 4 -to Au(0), clarified by the existence of several peaks belonging to Au(0) in the XRD pattern of HA after the adsorption process.

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“…It concentrates the heavy gold particles at the bottom of the pan while the light gangue is washed off on top. The most known gravity methods which are collecting gold bearing heavy particles without dissolving the mare sluice boxes, jigs, shaking tables, spirals and rotating cones [1], [6], [7].…”

Section: Introductionmentioning

confidence: 99%

A Review on Alternative Gold Recovery Re-agents to Cyanide

Gökelma¹,

Birich²,

Stopić³

et al. 2016

MSCE

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The importance of gold recovery from low grade ores and flotation tailings is continuously increasing due to raising gold demand and thereby high gold prices. However, due to raising social awareness of the ecological impacts of cyanidic gold extraction and environ-mental specifications, the development and the implementation of alternative hydrometallurgical extraction processes have been a focus for many research institutions in last decades. Present work gives a comparison between compatible extraction reagents, with focus on less harmful processes. The target of this review is to point out the best cyanide-free processes of following methods and reagents: Bioleaching, Chlorination, Aqua Regia, Bromine, Thiocyanate, Thiosulfate and Thiourea leaching. For this propose, the gold leaching reagents are described and discussed in terms of their environmental and economical points of view. As result of this comparison, thiourea stands out as the most promising alternative gold leaching reagent to cyanide.

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Beneficiation of the gold bearing ore by gravity and flotation

Cited by 27 publications

References 8 publications

Kinetic studies of sorption and reduction of gold(III) chloride complex ions on activated carbon Norit ROX 0.8

Kinetic studies of sorption and reduction of gold(III) chloride complex ions on activated carbon Norit ROX 0.8

Isolation of humic acid from peat soil and its application as an adsorbent for AuCl4− in solution

A Review on Alternative Gold Recovery Re-agents to Cyanide

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