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leaching for antimony ore high speed

Leaching Kinetics of Antimony from Refractory Gold Ore in ...

2020-12-1  The leaching kinetics of antimony from refractory gold ore in alkaline sodium sulfide was investigated under ultrasound. The influence of factors such as stirring speed, temperature, the concentration of sodium hydroxide and sodium sulfide and particle size, was studied.

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Ozonation leaching of a complex sulfidic antimony ore in ...

2016-1-1  High antimony extraction (94.3%) with low iron dissolution (2.3%) is achieved under the following leaching conditions: 4.5 mol/L hydrochloric acid concentration, 2.0 L/min gas flow rate and 8:1 of the L/S ratio, leaching for 4.0 h at 65 °C. These results reveal that ozonation leaching of the complex sulfidic antimony ore in hydrochloric acid ...

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Leaching kinetics of antimony-bearing complex sulfides

2017-9-1  The leaching kinetics of Sb and Fe from antimony-bearing complex sulfides ore was investigated in HCl solution by oxidation–leaching with ozone. The effects of temperature, HCl concentration, stirring speed and particle size on the process were explored.

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Selective leaching of antimony from tetrahedrite rich ...

2021-2-1  Antimony dissolution from tetrahedrite concentrate obtained from froth flotation experiments was investigated with Na 2 S-NaOH as lixiviant agent. Min. Run Res. V and CCD methods were applied for the first time, to identify and optimize the effects of Na 2 S concentration, NaOH concentration, stirring speed, leaching time, temperature and solid percent on antimony recovery.

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Leaching of Antimony from Stibnite Ore in KOH Solution

2021-1-13  This work aims to shed light on the leaching kinetics of antimony from stibnite ore in potassium hydroxide (KOH) solution. Response surface methodology based on central composite design was used to investigate the effect of time, temperature, solid to liquid ratio (S/L), and KOH concentration as independent parameters on the leaching efficiency of antimony. According to the results, time

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Evaluation of leaching parameters for a refractory gold ...

2009-8-1  Usually, leaching at pH below 10 improves gold extraction for ores containing stibnite. The use of high dissolved oxygen and a pre-treatment were detrimental to gold extraction. The ore exhibited low preg-robbing properties and the addition of kerosene slightly improved gold extraction. The gold extraction is sensitive to the grind size.

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Effect of selected parameters on tetrahedrite leaching by ...

Maximum antimony recovery was obtained 29.52% under optimal conditions as: stirring speed of 495.8 rpm, Na2S concentration of 151.52 g/l, leaching temperature of 89.92 C, solid percent of 0.3% ...

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A fundamental study of the alkaline sulfide leaching of

2015-12-27  as antimony, arsenic, mercury and tin. In industrial practice, alkaline sulfide hydrometallurgical methods are now employed for antimony production. Antimony recovery normally calls for a two step process of leaching followed by electrodeposition. The alkaline sulfide system is employed industrially in the CIS, China

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(PDF) Determination of the Leaching Parameters for a ...

The leaching parameters were 800 ppm NaCN, DO 16 ppm and pH 10.5 for a duration of 120 hours. The associated cyanide consumption was 4.0 kg/t. Gold leaching was not

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Antimony Recovery from End-of-Life Products and

2016-2-8  Antimony has become an increasingly critical element in recent years, due to a surge in industrial demand and the Chinese domination of primary production. Antimony is produced from stibnite ore (Sb2O3) which is processed into antimony metal and

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Leaching of Antimony from Stibnite Ore in KOH Solution

2021-1-13  This work aims to shed light on the leaching kinetics of antimony from stibnite ore in potassium hydroxide (KOH) solution. Response surface methodology based on central composite design was used to investigate the effect of time, temperature, solid to liquid ratio (S/L), and KOH concentration as independent parameters on the leaching efficiency of antimony. According to the results, time

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Effect of leaching temperature on tetrahedrite dissolution ...

It was revealed that the leaching rate increases with increasing ammonium chloride concentration, temperature and decreasing ore particle size, stirring speed and solid-liquid ratio.

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Antimony Ore Tailings: Heavy Metals, Chemical Speciation ...

Antimony ore tailings slag was used analyze heavy metals, chemical speciation, and leaching characteristics. The results show that the residual silicate phases account for 65.44% of Sb, 77.22% of ...

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(PDF) Selective Recovery of Tellurium from the Tellurium ...

2020-9-1  Sodium sulfide leaching is a high-e ... for the separation of antimony and arsenic from antimony-bearing gold ore, antimony-containing. ... Cyclone electrowinning functions through high-speed.

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A fundamental study of the alkaline sulfide leaching of

2015-12-27  as antimony, arsenic, mercury and tin. In industrial practice, alkaline sulfide hydrometallurgical methods are now employed for antimony production. Antimony recovery normally calls for a two step process of leaching followed by electrodeposition. The alkaline sulfide system is employed industrially in the CIS, China

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Selective Leaching of Arsenic from High-Arsenic Dust in ...

2021-6-29  This study investigated the selective removal of arsenic from high-arsenic dust in alkaline systems and the effects of different leaching conditions. The results indicated that the liquid–solid ratio, NaOH concentration, and sulfur dosage had a significant influence on the process. The leaching efficiency of arsenic reached 99.57%, while that of lead was as low as 0.03% under appropriate ...

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A hydrometallurgical process for the separation and ...

High antimony extraction (94.3%) with low iron dissolution (2.3%) is achieved under the following leaching conditions: 4.5 mol/L hydrochloric acid concentration, 2.0 L/min gas flow rate and 8:1 of ...

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Selective Recovery of Tellurium from the Tellurium

2020-9-1  Sodium sulfide leaching is a high-e ective hydrometallurgical method, which is commonly used for the separation of antimony and arsenic from antimony-bearing gold ore, antimony-containing brittle sulfur lead concentrate and arsenic-bearing dust [9,19,20]. However, sodium sulfide leaching

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(PDF) The leaching of tetrahedrite in ferric chloride ...

Maximum antimony recovery was obtained 29.52% under optimal conditions as: stirring speed of 495.8 rpm, Na2S concentration of 151.52 g/l, leaching temperature of 89.92 C, solid percent of 0.3% ...

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Leaching behavior of zinc and copper from zinc refinery ...

2019-1-5  The results obtained also show that the leaching rates of zinc and copper are 98.1% and 98.7%, respectively, and that the filtration speed is 526.32 L/(m2h) under the conditions of sulfuric acid concentration of 140 g/L, leaching temperature of 160°C, leaching time of 3.0 h, oxygen partial pressure of 0.75 MPa, stirring speed of 600 r/min ...

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Effect of leaching temperature on tetrahedrite dissolution ...

It was revealed that the leaching rate increases with increasing ammonium chloride concentration, temperature and decreasing ore particle size, stirring speed and solid-liquid ratio.

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Antimony Ore Tailings: Heavy Metals, Chemical Speciation ...

Antimony ore tailings slag was used analyze heavy metals, chemical speciation, and leaching characteristics. The results show that the residual silicate phases account for 65.44% of Sb, 77.22% of ...

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A fundamental study of the alkaline sulfide leaching of

2015-12-27  as antimony, arsenic, mercury and tin. In industrial practice, alkaline sulfide hydrometallurgical methods are now employed for antimony production. Antimony recovery normally calls for a two step process of leaching followed by electrodeposition. The alkaline sulfide system is employed industrially in the CIS, China

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The Leachox™ Refractory Gold Process – The Testing,

2019-5-14  of refractory ore bodies . When these high capital and operating costs are input into financial ... leaching ore bodies available, mining companies are increasingly investigating the treatment of ... • Vertical stirred ball mill- (high speed and low speed) • High intensity horizontal disc mill

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Selective Recovery of Tellurium from the Tellurium

2020-9-1  Sodium sulfide leaching is a high-e ective hydrometallurgical method, which is commonly used for the separation of antimony and arsenic from antimony-bearing gold ore, antimony-containing brittle sulfur lead concentrate and arsenic-bearing dust [9,19,20]. However, sodium sulfide leaching

Read More
(PDF) Selective Recovery of Tellurium from the Tellurium ...

2020-9-1  Sodium sulfide leaching is a high-e ... for the separation of antimony and arsenic from antimony-bearing gold ore, antimony-containing. ... Cyclone electrowinning functions through high-speed.

Read More
A hydrometallurgical process for the separation and ...

High antimony extraction (94.3%) with low iron dissolution (2.3%) is achieved under the following leaching conditions: 4.5 mol/L hydrochloric acid concentration, 2.0 L/min gas flow rate and 8:1 of ...

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Investigation of Alkaline Leaching Parameters on Stibnite ...

2020-7-27  In light of these observations, its extraction will be costly due to poor-quality ore, deep mining, remote locations, and high energy consumption. In the present study, an alkaline leaching process was carried out on stibnite concentrate to evaluate the effect of reaction parameters on the percentage of antimony extraction.

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(PDF) The leaching of tetrahedrite in ferric chloride ...

Maximum antimony recovery was obtained 29.52% under optimal conditions as: stirring speed of 495.8 rpm, Na2S concentration of 151.52 g/l, leaching temperature of 89.92 C, solid percent of 0.3% ...

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Modeling of Au Chlorination Leaching Kinetics from

2021-10-19  Chloride leaching provides significant advantages for gold extraction, as it supports high metal solubility, enhanced redox potential, and high leaching rates [16,17,18]. Along with the economic cost savings and significant recovery of chlorine leaching, less environmental pollution than the cyanidation and cupellation method is the ...

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