Characterization and atmospheric hydrochloric acid leaching of a limonitic laterite from Indonesia

Wang, Baoquan; Guo, Qiang; Wei, Guangpu; Zhang, Peiyu; Qu, Jingkui; Qi, Tao

doi:10.1016/j.hydromet.2012.06.017

Cited by 44 publications

(19 citation statements)

References 21 publications

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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%

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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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“…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%

“…However, the increasing of rheology had not a noticeable influence on the kinetics. Some scholars [2,29,31] have completed studies on different laterite ores in the atmosphere hydrochloric acid leaching conditions. Li et al [2] studied the effect of physicochemical factors on laterite ore leaching in hydrochloric acid.…”

Section: Advances In Computer Sciencementioning

confidence: 99%

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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“…As can be seen from that, the samples possess the fineness of approximately 60% passing 0.074 mm, and above 95% passing 0.5 mm, which is beneficial to reduce the cost of grinding the load. In addition, the fraction of iron distributing in coarse size is low whereas the gangue minerals, such as SiO 2 and Al 2 O 3 , are mainly present in the size of above 0.074 mm. Thus, it is essential to upgrade the slag by regrinding and re-concentration process.…”

Section: Introductionmentioning

confidence: 97%

“…Nickel laterite is an important nickel oxide ore, which accounts for about 60-70% of the world's land-based nickel reserves [1][2][3]. It is estimated that approximately 40% of the current worldwide nickel production is derived from nickel laterite.…”

Section: Introductionmentioning

confidence: 99%

Mineralogical Characteristics and Preliminary Beneficiation of Nickel Slag from Reduction Roasting-Ammonia Leaching

et al. 2017

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Abstract:The reduction roasting ammonia leaching process (RRAL) originally defined by Caron (1950) has been extensively applied to treat low grade nickel laterite and a large amount of slag-containing some valuable metals, has been generated and accumulated over the years since then. However, there are no reports on how to utilize it based on its essential properties. In this investigation, the textural and mineralogical characterization of the typical nickel slag from RRAL in Western Australia was performed by X-ray diffraction (XRD), and scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS). The results show that the nickel slag is dominated by magnetite, maghemite, gangue minerals and minor Cr-spinel. The magnetite and maghemite possess simple distribution relationship with other minerals and their particles are highly variable with most over 50 µm, which are easily able to be recovered. In term of the complex association and distribution feature of chromium and nickel minerals, it is very difficult to recovery them. Meanwhile, an economically viable extraction process was proposed to preliminarily utilize the nickel slag based on textural and mineralogical characteristics of the slag, and the magnetic concentrate, assaying about 62% iron grade at over 75% recovery rate, was obtained through the recommended method.

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“…The solutions used in these studies can be given as sulphuric acid (Georgiou and Papangelakis, 1998;Agacayak and Zedef, 2012;Luo et al, 2010;Stopic et al, 2002;Ayanda et al, 2011;Rubisov et al, 2000;Agatzini-Leonardou and Zafiratos, 2004;McDonald and Whittington, 2008a;Thubakgale et al, 2013;Landers et al, 2009;Mohammadreza et al, 2014), hydrochloric acid (Ayanda et al, 2011;Park and Nam, 2008;Agacayak et. al., 2011;Olanipekun, 2000;Wang et al 2012;Guo et al, 2015;McDonald and Whittington, 2008b;Li et al, 2012), nitric acid (Agacayak and Zedef, 2013;Ayanda et al, 2011;Ma et al, 2013), ammonia (Zhai et al, 2010;Zuniga et al, 2010), citric acid, oxalic acid and acetic acid (Sahu et al, 2011;Behera et al, 2010;Panchanadikar, 1993, Kursunoglu andKaya, 2015). The main aim in leaching studies is to provide metal extraction with high recovery.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Nickel Extraction From Lateritic Ore in Hydrochloric Acid Solution With Hydrogen Peroxide by Taguchi Method

Aras¹,

Agacayak²

2017

Scitech

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Taguchi optimization method was used to determine optimum conditions for the extraction of nickel from lateritic ore in hydrochloric acid solution with hydrogen peroxide. Leaching time, stirring speed, temperature, hydrochloric acid concentration and hydrogen peroxide concentration were chosen as parameters. The optimum conditions for dissolution w ere found as leaching time of 240 min, a temperature of 70°C, hydrochloric acid concentration of 3 M, hydrogen peroxide concentration of 0.1 M and without stirring. The experimental results under optimum leaching conditions, showed that the extraction of nickel from lateritic ore was 90.66%. Analysis of variance (ANOVA) was applied to experimental results. Percentage contributions of each factor for the extraction of nickel were determined. Key Words: Leaching, Lateritic ore, Nickel; Hydrochloric acid, Hydrogen peroxide; Taguchi method Nikelin Lateritik Cevherden Hidrojen Peroksitli Hidroklorik Asit Çözeltisinde ÇözündürülmesininTaguchi Yöntemiyle Optimizasyonu ÖZ: Nikelin lateritik cevherden hidrojen peroksitli hidroklorik asit çözeltisinde çözündürülmesinin optimum koşullarını belirlemek için Taguchi optimizasyon yöntemi kullanılmıştır. Deney parametreleri olarak, süre, karıştırma hızı, sıcaklık, hidroklorik asit derişimi ve hidrojen peroksit derişimi seçilmiştir. Çözündürme için optimum koşullar, karıştırma yapılmadan, 240 dakika liç süresi, 70 °C sıcaklık, 3 M hidroklorik asit derişimi ve 0.1 M hidrojen peroksit derişimi olarak bulunmuştur. Optimum koşullarda yapılan deney sonuçları, nikelin lateritik cevherden çözündürülmesinin %90.66 olduğunu göstermiştir. Deney sonuçlarına varyans analizi (ANOVA) uygulanmış ve her faktörün nikel çözündürülmesine olan katkısı belirlenmiştir.

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Characterization and atmospheric hydrochloric acid leaching of a limonitic laterite from Indonesia

Cited by 44 publications

References 21 publications

Current Studies of Treating Processes for Nickel Laterite Ores

Current Studies of Treating Processes for Nickel Laterite Ores

Mineralogical Characteristics and Preliminary Beneficiation of Nickel Slag from Reduction Roasting-Ammonia Leaching

Optimization of Nickel Extraction From Lateritic Ore in Hydrochloric Acid Solution With Hydrogen Peroxide by Taguchi Method

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