Electrolytic recovery of antimony from natural stibnite ore

Madkour, Loutfy H.; Salem, Ibrahim A.

doi:10.1016/0304-386x(95)00113-u

Cited by 16 publications

(2 citation statements)

References 9 publications

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“…The processing of low-grade stibnite concentrates for the extraction of antimony without entailing SO 2 emission, therefore, has received considerable attention in recent years. So far, several hydrometallurgical methods have been proposed, and different leaching agents have been used for the treatment of stibnite concentrates, such as the mixture of hydrochloric and tartaric acids and the mixture of nitric and tartaric acid as well as hot concentrated sulfuric acid, [2] sodium sulfide and sodium hydroxide, and so on. [3][4][5] However, using chloride medium-mostly ferric chloride-to obtain metals from sulphidic ores, such as sphalerite, galena, chalcopyrite, cubanite, bornite, pentlandite, pyrrhotite, mamatite, pyrite, molybdenite, and so on, is not a recent idea.…”

Section: Introductionmentioning

confidence: 99%

The Membrane Electrowinning Separation of Antimony from a Stibnite Concentrate

Yang

Tang

2010

Metall Mater Trans B

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The main purpose of this study was to characterize and to extract antimony from a stibnite concentrate through electrowinning. This article reports an account of a study conducted on the optimization of the process parameters for antimony pentachloride circular leaching, purification, and electrowinning of antimony from antimony trichloride solution. The effect of electrowinning parameters, such as antimony and sodium chloride concentration in the catholyte, temperature, current density, polar distance, etc., on the voltage requirement and the current efficiency (CE) of antimony electrodeposition was explored. A maximum CE of more than 97 pct was attained with a catholyte composition of 70-g/L antimony, 25-g/L NaCl, 4.5-mol/L hydrogen ion concentration, with an anolyte composition of 40-g/L antimony trichloride at a temperature of 328 K (55°C), a 4-cm polar distance, and a cathode current density of 200 A/m 2 . Under the optimized conditions, the CE was more than 97 pct, and a 99.98 pct antimony plate was obtained on the cathode. The chemical content analysis of the resulting anolyte was indicated to be 97 pct antimony pentachloride and 3 pct antimony trichloride, which could be recycled to leaching tank as the leaching agent.

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Section: Introductionmentioning

confidence: 99%

The Membrane Electrowinning Separation of Antimony from a Stibnite Concentrate

Yang

Tang

2010

Metall Mater Trans B

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“…Since stibnite ore reacts slowly and incompletely with mineral acids alone, they have been used in combination with other reagents e.g. tartaric acid [6]. The reductive leaching using iron powder in mineral acid has also been reported for the efficient recovery of antimony from stibnite [7].…”

Section: Introductionmentioning

confidence: 99%

Metal Extraction Process for High Grade Stibnite of Kharan (Balochistan Pakistan)

Hafeez¹,

Nasir²,

Zahra³

et al. 2017

JMMCE

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A rapid and simple process has been developed for the recovery of antimony metal from stibnite ore of Kharan area (Balochistan) of Pakistan. The ore was characterized by X-ray diffraction (XRD) technique and found to contain 66% stibnite i.e. antimony sulfide (Sb 2 S 3 ). The process parameters for the extraction of antimony were optimized on laboratory scale by varying reaction temperature from 900˚C -1000˚C, reaction time from 20 -80 minutes and flux concentration was varied from 5 -25 weight percent of the reaction mixture. The metal thus recovered with optimum conditions was evaluated by X-ray fluorescence (XRF) technique and was found to be more than 94% pure. The recovery yield calculated on the basis of stibnite present in the ore was 98.52%.

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Ecotoxicology of Environmental Heavy Metal Ions and Free Radicals on Macromolecule Cell Organisms

Madkour

2020

Nanoparticles Induce Oxidative and Endoplasmic Reticulum Stresses

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Electrolytic recovery of antimony from natural stibnite ore

Cited by 16 publications

References 9 publications

The Membrane Electrowinning Separation of Antimony from a Stibnite Concentrate

The Membrane Electrowinning Separation of Antimony from a Stibnite Concentrate

Metal Extraction Process for High Grade Stibnite of Kharan (Balochistan Pakistan)

Ecotoxicology of Environmental Heavy Metal Ions and Free Radicals on Macromolecule Cell Organisms

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