Comparison of atmospheric citric acid leaching kinetics of nickel from different Indonesian saprolitic ores

Astuti, Widi; Hirajima, Tsuyoshi; Sasaki, Keiko; Okibe, Naoko

doi:10.1016/j.hydromet.2015.12.015

Cited by 28 publications

(16 citation statements)

References 27 publications

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“…It also confirmed from XRD analysis that during pre-treatment, some of serpentine peak were disappearing. And the last reaction occurs at 800 °C, which is the recrystallization of forsterite 5 . …”

Section: Resultsmentioning

confidence: 99%

Extraction of nickel from nickel limonite ore using dissolved gaseous SO2 – air

Wulandari¹,

Soerawidjaja²,

Joshua³

et al. 2017

AIP Conference Proceedings

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Section: Resultsmentioning

confidence: 99%

Extraction of nickel from nickel limonite ore using dissolved gaseous SO2 – air

Wulandari¹,

Soerawidjaja²,

Joshua³

et al. 2017

AIP Conference Proceedings

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“…And there are lots of researches about using hydrochloric acid, nitric acid, and organic acid as leaching agent to extract nickel from nickel laterite ores [29][30][31].…”

Section: Advances In Computer Sciencementioning

confidence: 99%

“…Simplified schematic of the direct nickel process Organic acids are less stable and more environment friendly than inorganic acids. Several investigations about leaching kinetics of different laterite ores under atmospheric leaching conditions using critic acid have been performed [30,37]. Astuti et al [30] used citric acid as the leaching agent under atmosphere pressure for nickel extraction of an Indonesian saprolitic ore with the nickel content 1.76%.…”

Section: Advances In Computer Sciencementioning

confidence: 99%

“…Several investigations about leaching kinetics of different laterite ores under atmospheric leaching conditions using critic acid have been performed [30,37]. Astuti et al [30] used citric acid as the leaching agent under atmosphere pressure for nickel extraction of an Indonesian saprolitic ore with the nickel content 1.76%. The highest Ni recovery (95.6%) was achieved under the leaching conditions of ore particle size of 212-355 μm， critic acid concentration of 1 mol/L, leaching time of 15 days, pulp density of 20% w/v, leaching temperature of 40℃ and shaker speed of 200 rpm.…”

Section: Advances In Computer Sciencementioning

confidence: 99%

“…It was reported in this research that the shrinking core model was appropriate for describing the leaching kinetics of this ore in critic acid solutions at atmospheric leaching. In addition, Astuti et al [37] have made an comparison of atmosphere citric leaching kinetics of nickel from different saprolitic ores with the nickel contents 1.76% (SS ore) and 1.28% (SH ore), respectively. The maximum leaching efficiency of nickel was achieved from SS ore and SH ore were 96% and 73%, respectively.…”

Section: Advances In Computer Sciencementioning

confidence: 99%

See 2 more Smart Citations

Current Studies of Treating Processes for Nickel Laterite Ores

Wang¹,

Sun

Chen

et al. 2017

Proceedings of the 2nd International Conference on Mechatronics Engineering and Information Technology (ICMEIT 2017)

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Abstract. Nickel laterite ores are important nickel resources, which are abundant and account for approximately 70% of the world nickel reserves. However, nickel in nickel laterite ores could not be extracted by conventional separation methods. Consequently, treating and utilizing nickel laterite ores efficiently is of vital importance. This article reviews hydrometallurgical processes, pyro metallurgical methods, and reduction roasting-magnetic separation technique with reference to current studies of treating processes for nickel laterite ores.

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Leaching of Neodymium From Hard Disk Drive Magnet Waste Using Citric Acid‐ Design of Experiments and Optimization

Ranjan Ray,

Chandra Tripathy,

Mishra

2024

ChemistrySelect

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Neodymium magnet waste recycling and precious metal recovery have drawn a lot of researchers’ attention because of their vital role in contemporary technology. In this work, the potential of citric acid for the leaching of neodymium from hard disk drive waste magnets has been examined using statistical approaches like full factorial design(FFD) and central composite design (CCD).The variables have been screened and conditions are optimized to obtain higher leaching. The polynomial quadratic Model proves effective to predict optimized conditions for neodymium leaching. Leachant concentration and temperature were screened as the most effective factors. Optimization conditions for the leaching process were achieved through central composite design, revealing that 2 mol/L citric acid and a temperature of 333 K provide the ideal conditions for the complete dissolution of neodymium. This extensive study contributes to sustainable materials management and resource conservation by illuminating the effective recovery of important metals from neodymium magnets.

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Comparison of atmospheric citric acid leaching kinetics of nickel from different Indonesian saprolitic ores

Cited by 28 publications

References 27 publications

Extraction of nickel from nickel limonite ore using dissolved gaseous SO2 – air

Extraction of nickel from nickel limonite ore using dissolved gaseous SO2 – air

Current Studies of Treating Processes for Nickel Laterite Ores

Leaching of Neodymium From Hard Disk Drive Magnet Waste Using Citric Acid‐ Design of Experiments and Optimization

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