Study of the optimization of gold ore concentration using gravity separator (shaking table): case study for LS epithermal gold deposit in Artisanal Small scale Gold Mining (ASGM) Paningkaban, Banyumas, Central Java

Ernawati, Rika; Idrus, Arifudin; Petrus, Himawan Tri Bayu Murti

doi:10.1088/1755-1315/212/1/012019

Cited by 8 publications

(10 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…2021;18:e2512 que suas variáveis operacionais são a taxa de alimentação, a porcentagem de sólidos na alimentação e a granulometria do minério [7]. Em amostras com granulometria abaixo de 30 µm, o Falcon pode alcançar uma recuperação de ouro de até 99% [9].…”

Section: Caracterização De Minério De Ouro Aluvionar Com O Uso Do Concentrador Falconunclassified

Caracterização de minério de ouro aluvionar com o uso do concentrador Falcon

Ricardo¹,

Papini²,

Góes³

2021

Tecnol. Metal. Mater. Min.

View full text Add to dashboard Cite

Section: Caracterização De Minério De Ouro Aluvionar Com O Uso Do Concentrador Falconunclassified

Caracterização de minério de ouro aluvionar com o uso do concentrador Falcon

Ricardo¹,

Papini²,

Góes³

2021

Tecnol. Metal. Mater. Min.

View full text Add to dashboard Cite

“…Shaking table was employed for conventional gravity separation for coarse fraction (-0.8 +0.2 mm and (-0.2 +0.075 mm), while the fine fraction (-0.075 mm) was subjected for upgrading using falcon concentrator. Shaking tables are effective in the processing of material in the size range 3 mm to 15 µm according to Ernawati et al, (2019). Table 5 shows the recovery and gold assay of the products resulting from processing of ground sample of less than 0.8 mm.…”

Section: Upgrading Of Gold Sample Using Gravity Separationmentioning

confidence: 99%

“…Adams (2016) recorded that up to 90% of coarser gold than 40 µm can be recovered, whereas typically only 20% of 20-40 µm gold can be recovered and the efficiency drops greatly below 40 µm. Falcon concentrator can achieve up to 99% recovery efficiency below 30 µm (Ernawati et al, 2019).…”

Section: Upgrading Of Gold Sample Using Gravity Separationmentioning

confidence: 99%

“…The optimum gold grade is obtained from the size fraction of 87 microns. The gold particle in the finer size fraction has flaked shape which decreases its specific gravity (Ernawati et al, 2019). The processing of Zambia gold deposit produced a grade and recovery of 91 g/t and 57%, respectively, from the original ore of 16 g/t using the shaking table (Wang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mineralogical study and enhanced gravity separation of gold-bearing mineral, South Eastern Desert, Egypt

Abdel-Khalek¹

2020

Physicochem. Probl. Miner. Process.

View full text Add to dashboard Cite

El-Hudi gold deposit, located in the South Eastern Desert of Egypt, represent large vein-type gold occurrence. The representative sample revealed the abundance of quartz as main constituent with minor amounts of mineral impurities. Gold was detectable (12 g/t) as determined using atomic absorption. The petrographic study revealed that the gold grains ranged from 10-40 µm. The grain boundaries of quartz are highly stained with iron minerals as hematite and limonite. Sericite mineral is common in discrete gold-bearing veins. Eroded pyrite was detected with high alteration leaving only cubic-shaped cavities behind. Different techniques for gravity separation were used to separate gold from the quartz mineral. After crushing and grinding of the sample, shaking table was used to upgrade the coarser fractions while Falcon concentrator was employed to upgrade the fine fraction. The best concentrate was obtained through grinding the whole sample to less than 0.2 mm, followed by cleaning steps. The gold content is increased from 12 to 145 g/t with total recovery of 78%.

show abstract

“…This was tested with moderate success in a study with a centrifugal concentrator [21] or a dry Wilfley shaking table [22,23]. Shaking tables are a state of the art technology applied to separation and concentration of valuable components from mixed materials, thus finding various applications from gold ore processing [24] to copper concentration from WEEE (waste from electric and electronic equipment) pyrolysis ashes [25]. The advantages and disadvantages of shaking tables are a high separation selectivity that, however, also limits capacity for sandy materials to about 2 t/h per full-sized deck [26].…”

Section: Introductionmentioning

confidence: 99%

Heavy metal recovery from the fine fraction of solid waste incineration bottom ash by wet density separation

Pienkoß

Abis

Bruno

et al. 2021

J Mater Cycles Waste Manag

View full text Add to dashboard Cite

This work is aimed at exploring the recovery of heavy metals from the fine fraction of solid waste incineration bottom ash. For this study, wet-discharged bottom ash fine-fraction samples from full-scale treatment plants in Germany and Sweden were analyzed. The potential for the recovery of heavy metal compounds was investigated through wet density-separation with a shaking table. The feed materials were processed without any pre-treatment and the optimum processing conditions were determined by means of design of experiments. Tilt angle and stroke frequency were identified as the most relevant parameters, and the optimum settings were − 7.5° and 266 rpm, respectively. The obtained balanced copper enrichments (and yields) were 4.4 (41%), 6.2 (28%) and 2.4 (23%). A maximum copper enrichment of 14.5 with 2% yield was achieved, providing a concentrate containing 35.9 wt.% relevant heavy metal elements. This included 26.3 wt.% iron, 4.3 wt.% zinc and 3.8 wt.% copper. In conclusion, density separation with shaking tables can recover heavy metals from bottom ash fine fractions. Medium levels of heavy metal enrichment (e.g., for Cu 2.7–4.4) and yield (Cu: 26–41%) can be reached simultaneously. However, the separation performance also depends on the individual bottom ash sample.

show abstract

Study of the optimization of gold ore concentration using gravity separator (shaking table): case study for LS epithermal gold deposit in Artisanal Small scale Gold Mining (ASGM) Paningkaban, Banyumas, Central Java

Cited by 8 publications

References 2 publications

Caracterização de minério de ouro aluvionar com o uso do concentrador Falcon

Caracterização de minério de ouro aluvionar com o uso do concentrador Falcon

Mineralogical study and enhanced gravity separation of gold-bearing mineral, South Eastern Desert, Egypt

Heavy metal recovery from the fine fraction of solid waste incineration bottom ash by wet density separation

Contact Info

Product

Resources

About