Recycling of refractory bricks used in basic steelmaking: A review

Horckmans, Liesbeth; Nielsen, Peter; Dierckx, Philippe; Ducastel, Antoine

doi:10.1016/j.resconrec.2018.09.025

Cited by 98 publications

(59 citation statements)

References 16 publications

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“…Pure mullite melts above 2000ºC, whereas silica melts at about 1595ºC. This diagram shows that mullite is a better refractory than that of a silica Refractories such as Bauxite (Al (OH) 3 ), which are rich in alumina, are primarily used in production of steel and electric arc furnaces (Horckmans, Nielsen, Dierckx, & Ducastel, 2019). The fig.…”

Section: Alumina Refractoriesmentioning

confidence: 95%

Recycling of Ceramic Refractory Materials: Process Steps

2019

SETWM-19, ACBES-19, EEHSS-19 Nov. 18-19, 2019 Johannesburg (South Africa)

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The disposal of refractory materials has become a major problem for metal producers. Ceramic furnace tubes are quite costly, yet they are prone to cracking and wear due to chemical reactions and thermal shock. Suppliers do not accept back these tubes after use hence the need for ways to recycle and reuse these tubes since they affect the environment negatively if they are dumped in landfills. Refractory materials containing copper, magnesite, chrome and bauxite cause environmental impacts. Chromium (VI) can cause cancer when disposed off into the environment. Wastes containing chromium are considered high-risk materials, therefore, products containing chromium cannot be disposed off. Spent furnace tubes (alumina) were collected from pyrometallurgical laboratory. They were either broken due to thermal cycling or chemical reactions. Hand-sorted, crushed and milled the resulting product was screened to determine the particle size distribution. The powder that was recovered was >98% wt% alumina. These can be used as raw materials for the manufacturing of crucibles. This paper elaborates on recycling process stages or steps that the spent ceramic furnace tubes undergoes for them to be successfully recycled, leading into the reduction in the impact of dumping hazardous spent ceramic refractory into landfills. Production of chromium bearing alloys will be explained as magnesia-chrome are recycled as scrap.

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Section: Alumina Refractoriesmentioning

confidence: 95%

Recycling of Ceramic Refractory Materials: Process Steps

2019

SETWM-19, ACBES-19, EEHSS-19 Nov. 18-19, 2019 Johannesburg (South Africa)

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“…Toxic refractories, such as chromium-containing refractories, should be separated from other wastes and buried as hazardous waste in a specific landfill. The non-toxic refractories are then crushed and graded after removing the contaminated parts by special mills [17,18].…”

Section: Refractory Wastesmentioning

confidence: 99%

Heavy Metal Release from Industrial Solid Wastes (Case Study: Khazar Steel Smelting Plant)

2020

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“…As the volume of the studies dealing with the recycling problem is beyond a summarily literature review, we encourage the reader interested in the recycling process to read some of the review studies [26][27][28][29][30].…”

Section: Literature Reviewmentioning

confidence: 99%

Modeling the Consumers Opinion Influence in Online Social Media in the Case of Eco-friendly Products

et al. 2019

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Social influence has a positive impact on the purchase intention for eco-friendly products along with other subjective and objective aspects related to environmental attitude, product attitude, and subjective and objective knowledge. Also, exposure to media has been proven to have a significant positive affect on environmental attitude, with effect on the purchase intention. Several recent studies have shown the importance of consumers’ influence in online social networks, underlying the role played by the online environments over consumers’ attitude. As a result, the current research tries to analyze the influence exerted on consumers’ decision to purchase eco-friendly products by their activity in online social environments. Using a questionnaire, filled-in by 409 respondents, a series of variables have been extracted with regard to the eco-friendly products. An agent-based model has been created, fed with the values of the variables extracted from the questionnaire, and used for simulations. As a result, it has been observed that an increase in online media exposure can have a high positive impact on the eco-friendly product adoption. Depending on the type of product—soft or durable good—different times for the eco-friendly product adoption have been determined relatively to the considered variables. Last, the possible limitations of using an agent-based modeling approach are discussed, along with possible extensions and improvements.

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Recycling of refractory bricks used in basic steelmaking: A review

Cited by 98 publications

References 16 publications

Recycling of Ceramic Refractory Materials: Process Steps

Recycling of Ceramic Refractory Materials: Process Steps

Heavy Metal Release from Industrial Solid Wastes (Case Study: Khazar Steel Smelting Plant)

Modeling the Consumers Opinion Influence in Online Social Media in the Case of Eco-friendly Products

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