Enhancing Pb Removal and Synthesizing Glass–Ceramics from Waste CRTs Funnel Glass by Red Mud

Xu, Baoqiang; Wang, Fengkang; Yang, Jia; Yang, Bin; Zhao, Jinyang

doi:10.1007/s40831-020-00282-7

Cited by 11 publications

(2 citation statements)

References 16 publications

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“…Several main directions of open-loop recycling, each with specific advantages and disadvantages, have gained greater interest among researchers and manufacturers. CRT waste recycling by vitrification as an energy-consuming process is economically viable only by generating new glass-based products with high market value, such as cellular glasses [13][14][15][16], glass ceramics [17][18][19][20], ceramic glazes [21][22][23][24], and composites [25][26][27][28]. Another recycling trend that avoids the economic disadvantages associated with vitrification is for construction and infrastructure industries as a substitute for aggregates in cementitious matrices for concretes and mortars [29][30][31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

New Glass Ceramic Materials Obtained from Cathode Ray Tubes Glass Wastes and Fly Ash

et al. 2023

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This paper presents an alternative way to recycle cathode ray tube glass waste, together with fly ash and kaolin, into new glass ceramic materials. The samples were obtained using three firing temperatures: 700, 800, and 900 °C. The effect of the fly ash/CRT waste ratio upon the materials’ firing shrinkage, apparent density, apparent and total porosity, chemical stability, and compression strength was investigated. The firing shrinkage used as a dimensional stability parameter, a firing shrinkage range between 2.19–8.18%, was positively influenced by the waste mix amount. The apparent density of the obtained materials is positively affected by the heat treatment temperature, rising from 2.09 to 2.93 (g·cm−3), while the apparent porosity decreases with the increase of the firing temperature from 6.08 to 2.24 %. All the studied glass ceramics show very good chemical stability and complete immobilization of the Pb2+ and Ba2+ ions in the glass ceramic matrix. The compression strength of the sintered materials ranges between 1.42–11.83 (N·mm−2), being positively influenced by the kaolin amount and negatively influenced by porosity. The obtained results confirm the viability of the proposed alternative to use CRT waste and fly ash together with kaolin to obtain glass ceramic materials that can be used for outdoor paving applications.

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Section: Introductionmentioning

confidence: 99%

New Glass Ceramic Materials Obtained from Cathode Ray Tubes Glass Wastes and Fly Ash

et al. 2023

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“…Due to the advantages of high strength, low thermal conductivity, and oxidation resistance, glass ceramics have wide range of application prospects [3] . Currently, the research on preparing glass ceramics from tailings mainly focuses on common tailings such as red mud, coal fly ash, and iron tailings [4,5] . However, the widespread andesite tailings are less concerned because of their less available components.…”

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confidence: 99%

Andesite tailings and municipal solid waste incineration fly ash based glass ceramics

Huang

Dai

et al. 2022

J. Phys.: Conf. Ser.

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To realize the utilization of andesite tailings and solve the environmental problems caused by municipal solid waste incineration (MSWI) fly ash, both of them were selectively used as raw materials to prepare glass ceramics by sintering process. The effects of components on the properties of glass ceramics were analyzed. The results showed that glass-ceramic sample 21 prepared from andesite tailings and MSWI fly ash had the best performance, the bending strength was 94.8Mpa. At the same time, its acid and alkali resistance were the best, while the thermal conductivity was the lowest. The leaching of heavy metal elements in all the samples met the Chinese national standard. These results will provide some reference for the resource utilization of andesite tailings and MSWI fly ash.

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Effect of sintering temperature on microstructure and properties of glass-ceramics synthesized from waste cathode ray tubes funnel glass

Lyu

Zhang

et al. 2021

J. Cent. South Univ.

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Enhancing Pb Removal and Synthesizing Glass–Ceramics from Waste CRTs Funnel Glass by Red Mud

Cited by 11 publications

References 16 publications

New Glass Ceramic Materials Obtained from Cathode Ray Tubes Glass Wastes and Fly Ash

New Glass Ceramic Materials Obtained from Cathode Ray Tubes Glass Wastes and Fly Ash

Andesite tailings and municipal solid waste incineration fly ash based glass ceramics

Effect of sintering temperature on microstructure and properties of glass-ceramics synthesized from waste cathode ray tubes funnel glass

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