Using one waste to tackle another: Preparation of a CO2 capture material zeolite X from laterite residue and bauxite

Liu, Liying; Du, Tao; Li, Gang; Yang, Fan; Che, Shuai

doi:10.1016/j.jhazmat.2014.06.041

Cited by 35 publications

(11 citation statements)

References 21 publications

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“…Another important parameter that controls the nucleation and crystal growth of zeolite is the alkalinity of the base solution, which includes H 2 O/Na 2 O and Na 2 O/SiO 2 ratios [ 34 ]. Generally high alkaline concentration of the system could accelerate the dissolution of silicon and aluminum components in the precursor materials, which will shorten the induction period and nucleation time, and then speed up the crystallization rate.…”

Section: Resultsmentioning

confidence: 99%

One-Step Hydrothermal Synthesis of Zeolite X Powder from Natural Low-Grade Diatomite

et al. 2018

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Zeolite X powder was synthesized using natural low-grade diatomite as the main source of Si but only as a partial source of Al via a simple and green hydrothermal method. The microstructure and surface properties of the obtained samples were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), wavelength dispersive X-ray fluorescence (XRF), calcium ion exchange capacity (CEC), thermogravimetric-differential thermal (TG-DTA) analysis, and N2 adsorption-desorption technique. The influence of various synthesis factors, including aging time and temperature, crystallization time and temperature, Na2O/SiO2 and H2O/Na2O ratio on the CEC of zeolite, were systematically investigated. The as-synthesized zeolite X with binary meso-microporous structure possessed remarkable thermal stability, high calcium ion exchange capacity of 248 mg/g and large surface area of 453 m2/g. In addition, the calcium ion exchange capacity of zeolite X was found to be mainly determined by the crystallization degree. In conclusion, the synthesized zeolite X using diatomite as a cost-effective raw material in this study has great potential for industrial application such as catalyst support and adsorbent.

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Section: Resultsmentioning

confidence: 99%

One-Step Hydrothermal Synthesis of Zeolite X Powder from Natural Low-Grade Diatomite

et al. 2018

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“…The effect of aging time on the nucleation and crystallization of zeolite crystal was reported before [34,52], and investigated in this study. Fig.…”

Section: Effect Of Reaction Timementioning

confidence: 95%

Facile synthesis of zeolite NaX using rice husk ash without pretreatment

Tran‐Nguyen

Thanh

et al. 2021

Journal of the Taiwan Institute of Chemical Engineers

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“…Technospheric stocks (i.e., mine wastes) that do not contain metals attractive enough for economic or viable extraction can be diverted and used as sources of materials and compounds that can be repurposed for other applications. A number of these applications are in the building, construction, and production of zeolites and adsorbent materials [6,20,79,80]. Examples of these applications are listed in Table 3.…”

Section: Mineral Recoverymentioning

confidence: 99%

Technospheric Mining of Mine Wastes: A Review of Applications and Challenges

Lim

Alorro

2021

Sustainable Chemistry

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The concept of mining or extracting valuable metals and minerals from technospheric stocks is referred to as technospheric mining. As potential secondary sources of valuable materials, mining these technospheric stocks can offer solutions to minimise the waste for final disposal and augment metals’ or minerals’ supply, and to abate environmental legacies brought by minerals’ extraction. Indeed, waste streams produced by the mining and mineral processing industry can cause long-term negative environmental legacies if not managed properly. There are thus strong incentives/drivers for the mining industry to recover and repurpose mine and mineral wastes since they contain valuable metals and materials that can generate different applications and new products. In this paper, technospheric mining of mine wastes and its application are reviewed, and the challenges that technospheric mining is facing as a newly suggested concept are presented. Unification of standards and policies on mine wastes and tailings as part of governance, along with the importance of research and development, data management, and effective communication between the industry and academia, are identified as necessary to progress technospheric mining to the next level. This review attempts to link technospheric mining to the promotion of environmental sustainability practices in the mining industry by incorporating green technology, sustainable chemistry, and eco-efficiency. We argue that developing environmentally friendly processes and green technology can ensure positive legacies from the mining industry. By presenting specific examples of the mine wastes, we show how the valuable metals or minerals they contain can be recovered using various metallurgical and mineral processing techniques to close the loop on waste in favour of a circular economy.

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Using one waste to tackle another: Preparation of a CO2 capture material zeolite X from laterite residue and bauxite

Cited by 35 publications

References 21 publications

One-Step Hydrothermal Synthesis of Zeolite X Powder from Natural Low-Grade Diatomite

One-Step Hydrothermal Synthesis of Zeolite X Powder from Natural Low-Grade Diatomite

Facile synthesis of zeolite NaX using rice husk ash without pretreatment

Technospheric Mining of Mine Wastes: A Review of Applications and Challenges

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