Recovery of nickel and cobalt as MHP from limonitic ore leaching solution: Kinetics analysis and precipitate characterization

Safitri, N.; Mubarok, Mohammad Zaki; Winarko, Ronny; Tanlega, Zela

doi:10.1063/1.5038312

Cited by 20 publications

(8 citation statements)

References 6 publications

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“…Using sodium carbonate as precipitant, cobalt was removed to over 99% at pH 9. The same result was achieved by Safitri et al [41] in treating cobalt in a multi-component heavy metal system reaching over 99% removal at pH 9. As shown in Fig.…”

Section: −supporting

confidence: 82%

Recovery of cobalt and copper from single- and co-contaminated simulated electroplating wastewater via carbonate and hydroxide precipitation

Quiton

Huang

2022

Sustain Environ Res

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Wastewater containing cobalt and copper comprised of plating wash water, plant wash water, and equipment cooling and wash water is generated in the electroplating industry. These metals can be detrimental to humans, animals, plants, and the environment. Thus, it is necessary to treat electroplating wastewater to remove these toxic metals. Carbonate and hydroxide precipitation were utilized for the removal of Co (II) and Cu (II) from synthetic electroplating wastewater by jar tests in this work. The effects of solution pH, precipitant-to-metal ratio, and type of precipitant on the precipitation efficiency of cobalt and copper from the single- and co-contaminated systems were investigated. Carbonate precipitation achieved higher removal efficiency for both target metals in the single- and co-contaminated wastewater streams. Furthermore, it can operate at relatively low pH range of about 7–8. Cobalt in both pollutant systems was almost completely removed at pH 10 using both precipitant systems. Copper was found to be easily removed which was possibly brought about by precipitation-adsorption mechanism. The extent of the co-removal of cobalt with copper is significantly pH dependent. The effect of precipitant-to-metal ratio for cobalt and copper treatment varied in single- and co-contaminated streams. Carbonate precipitation led to higher sludge volume than that of hydroxide precipitation.

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Section: −supporting

confidence: 82%

Recovery of cobalt and copper from single- and co-contaminated simulated electroplating wastewater via carbonate and hydroxide precipitation

Quiton

Huang

2022

Sustain Environ Res

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“…Most of samples have high tendency to show calcium sulfate formation, such as anhydrite and bassanite. The formation of calcium sulfate is due to the neutralization process that happen during the titration process (Safitri et al 2018). Here, calcium from CaCO3 bond with the sulfur from leaching reagent of H2SO4 and form calcium sulfate Nickel and iron have the probability to precipitates in the formation of carbonates.…”

Section: Table 1 Initial Composition Of Plsmentioning

confidence: 99%

“…On the other hand, rustcolored Fe(OH)3 starts to precipitate at lower pH of 2 In pH 2 until 3, the color changes into brown in the phase of Fe(III). The proportion of the Fe (II) and Fe (III) forms in solution is mainly due to the solution pH and Eh value or the Pourbaix Diagram (Safitri et al 2018). From several studies, the possibility of the filtrates and precipitates is in the form of jarosite or/and goethite due to its yellow and brown color solution instead of red or hematite colored form (Vaughan, Hawker, and White 2011).…”

Section: Table 1 Initial Composition Of Plsmentioning

confidence: 99%

Characterization of Iron Removal Process Products from Atmospheric Lateritic Ore Leaching Solution by using 20 and 25% of Calcium Carbonate

Adhikara¹,

Ulum²,

Madsuha³

et al. 2021

met. indonesia

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Electric vehicles become the alternative to solve the climate change and global warming problems by providing a more eco-friendly and sustainable source of energy. As the demand for sustainable vehicles increased, the functionality of batteries become crucial. One of the important aspects inside the batteries is nickel. Nickel plays a big role in lithium-ion batteries by delivering greater amounts of energy density with a higher storage capacity, which means it provides bigger efficiency to the batteries. Yet, the attempt of optimizing nickel extraction remains a challenge. Therfore, nickel extraction process of lateritic ore with high efficiency is investigated by using hydrometellurgy process, specifically the iron removal process in atmospheric condition in mixed hydroxide precipitates (MHP) route.The reagent solution of (20% w/w and 25% w/w) calcium carbonate (CaCO3) at pH (1, 2, 3) were utilized as additive in this process. The precipitates resulted from PLS were characterized by x-ray diffraction (XRD) and Scanning Electron Microscopy - Energy Dispersive X-Ray (SEM–EDS), while the filtrates were investigated by Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). Analysis based on precipitates demonstrates that the acid neutralization process took place with a sufficient amount of iron in the precipitates with the least amount of nickel. In addition, all pH and concentration of precipitates qualitatively illustrate the same neutralization process involving calcium and sulfur. From the results of filtrate through ICP testing in this study, pH 1 for both 20% and 25% concentration provides the lowest recovery rate alongside the smallest ppm compare to pH 2 and 3; thus, the iron precipitates in the formation of iron sulfide and/or iron sulfate. Overall, the optimum parameter is 25% of calcium carbonate, pH 1, 90oC for 2 hours of agitation to reduce the amount of iron in the solution.

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“…이 경우 다단공정으로 인하여 공정이 복잡하고 강산 침출액을 중화시켜 적절한 산도 조절을 위하여 알칼리 약품의 다량 투입이 불가피 하며 이로 인한 나트륨, 마그네슘이나 칼슘 등이 불순물로 다 량 혼입되는 현상이 발생하고 있다. 이러한 불순물 제거 에 대한 공정비용이 증가 요인으로 작용하고 있어 이에 대 한 개선 연구가 필요하다고 할 수 있다 [12][13][14] . 따라서 본 연 구에서는 공정부산물이나 폐자원에서 발생되는 침출액으 로부터 망간, 마그네슘 등의 불순물과의 분리성이 우수하 고, 침출액의 중화처리 없이 강산성 용액에서 코발트와 니켈을 효과적으로 분리 추출할 수 있는 공정 개발을 하고 자 하였다 15,16) .…”

Section: 서 론unclassified

Recovery of Co and Ni from Strong Acidic Solution by Cyanex 301

Cho¹,

Kim

Ahn³

2021

Resour. Recycl.

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An experiment was conducted to separate or recover Co and Ni using Cyanex 301 from process by-products and waste resources containing Co and Ni. To separate and recover Co and Ni from simulated leaching solutions, 10 v/v% Cyanex 301 was used as an extractant in this study; Li was not extracted. At equilibrium pH 1.5 and a phase ratio (A/O) of 1.0, 0.44% of Mg and 11.57% of Mn were extracted, and more than 99% of Co and Ni were extracted. McCabe-Thiele diagram analysis confirmed that more than 99.9% of Co and Ni could be extracted simultaneously through two-stage extraction with an extraction phase ratio (A/O) of 2. It was possible to extract Mg and Mn simultaneously through the scrubbing process. In the scrubbing process, more than 99% of Mg and 87% of Mn were scrubbed using 0.05 M of H 2 SO 4 , and 99.9% of Mg and more than 80% of Mn were scrubbed using 0.05 M of HCl. In the stripping process, 93% of Co and 5% of Ni were stripped selectively by 3.0 M of H 2 SO 4 . However, when 8.0 M of HCl was used as a stripping solution, more than 99.9% of Co and more than 90% of Ni were stripped simultaneously.

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Recovery of nickel and cobalt as MHP from limonitic ore leaching solution: Kinetics analysis and precipitate characterization

Cited by 20 publications

References 6 publications

Recovery of cobalt and copper from single- and co-contaminated simulated electroplating wastewater via carbonate and hydroxide precipitation

Recovery of cobalt and copper from single- and co-contaminated simulated electroplating wastewater via carbonate and hydroxide precipitation

Characterization of Iron Removal Process Products from Atmospheric Lateritic Ore Leaching Solution by using 20 and 25% of Calcium Carbonate

Recovery of Co and Ni from Strong Acidic Solution by Cyanex 301

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