Utilization of Coal Fly Ash for the Production of Glass-ceramics With Unique Performances: A Brief Review

Wang, Shuming; Zhang, Caixing; Chen, Jundan

doi:10.1016/j.jmst.2014.10.005

Cited by 72 publications

(34 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A number of processes for recovering alumina have been reported, which can be grouped into three types: the sintering process, the acid leaching process and HiChlor process [18]. HAFA can also be used to prepare different industrial products, e.g., foam materials [19], zeolite [20], glass ceramics [21], and mullite ceramics [22]. Mullite ceramics have high refractoriness and creep resistance, suitable strength and fracture toughness, which make it amenable to various applications [23].…”

Section: The Assessed Casementioning

confidence: 99%

The assessment of eco-design with a comprehensive index incorporating environmental impact and economic profit

Yang

Wang

et al. 2017

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

Abstract. Eco-design is an advanced design approach which plays an important part in the national innovation project and serves as a key point for the successful transformation of the supply structure. However, the practical implementation of the pro-environmental designs and technologies always faces a dilemma situation, where some processes can effectively control their emissions to protect the environment at relatively high costs, while others pursue the individual interest in making profit by ignoring the possible adverse environmental impacts. Thus, the assessment on the eco-design process must be carried out based on the comprehensive consideration of the economic and environmental aspects. Presently, the assessment systems in China are unable to fully reflect the new environmental technologies regarding their innovative features or performance. Most of the assessment systems adopt scoring method based on the judgments of the experts, which are easy to use but somewhat subjective. The assessment method presented in this paper includes the environmental impact (EI) assessment based on LCA principal and willingness-to-pay theory, and economic profit (EP) assessment mainly based on market price. The results from the assessment are in the form of EI/EP, which evaluate the targeted process from a combined perspective of environmental and economic performance. A case study was carried out upon the utilization process of coal fly ash, which indicates the proposed method can compare different technical processes in an effective and objective manner, and provide explicit and insightful suggestions for decision making.

show abstract

Section: The Assessed Casementioning

confidence: 99%

The assessment of eco-design with a comprehensive index incorporating environmental impact and economic profit

Yang

Wang

et al. 2017

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…Promising ways to reuse these residues are by ceramization and, specially for hazardous waste, vitrification. Much research has been focused on utilizing different waste as raw materials to produce glass and glass‐ceramics in order to reduce fabrication costs and remove contaminating residues, thus generating eco‐friendly products . A great number of these works were dedicated to enhance the mechanical properties for structural applications.…”

Section: Introductionmentioning

confidence: 99%

“…The annual production is estimated to be more than 500 Mt, a growing quantity due to the increasing power demand. Extensive research has been undertaken on the potential utilization of this by‐product in construction, light weight aggregate, as low‐cost adsorbent, catalyst support, also for zeolite, mullite, and glass‐ceramic synthesis …”

Section: Introductionmentioning

confidence: 99%

“…The high content of iron in red mud makes of it an adequate candidate for the manufacture of ferrimagnetic materials, as well as the non‐negligible content of TiO 2 which act as a nucleation agent in the generation of the glass‐ceramic. The addition of fly ash produces large amounts of crystal nuclei, leading to the formation of nanocrystals and improving the mechanical properties of the glass‐ceramic . Glass cullet gives to the mixture the necessary Na 2 O to reduce the melting temperature and viscosity of the glass phase, also increases the lime content in order to decrease the crystallization activation energy, promoting the crystallization of the glass‐ceramic in the melting process without the need of a posterior annealing process.…”

Section: Introductionmentioning

confidence: 99%

“…Much research has been focused on utilizing different waste as raw materials to produce glass and glass-ceramics in order to reduce fabrication costs and remove contaminating residues, thus generating eco-friendly products. [1][2][3][4] A great number of these works were dedicated to enhance the mechanical properties for structural applications. However, increasing the value of the glassy or glass-ceramic product by inducing or controlling valuable functionalities is desirable.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis and characterization of ferrimagnetic glass‐ceramic frit from waste

Gonzalez-Triviño

Benítez‐Guerrero

Castelló

et al. 2017

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

The large amount of generated waste determines the importance of their valorization. Red mud is the residue of the Bayer process, which stored cumulative value raises 2.7 Bt. This paper describes an easy way to produce a ferrimagnetic glass‐ceramic frit, using bauxite residue, fly ash and glass cullet as raw materials. The synthesized frit consists of faceted and dendritic agglomerated crystals of magnetite and titanomagnetite embedded in a glass matrix, which exhibits a saturation magnetization (MS) of 6.3 emu/g, a remanent magnetization (MR) of 2.7 emu/g and a coercive field (HC) of 347 Oe. Furthermore, it presents Vickers hardness value of HV = 5.55 ± 0.16 GPa and fracture toughness value of KIC = 1.64 ± 0.34 MPa·m1/2.

show abstract