Synthesis of Value Added Refractories from Aluminium Dross and Zirconia Composites

Ramaswamy, Parvati; Tilleti, Pramod; Bhattacharjee, Sushmit; Pinto, Ras; Gomes, Sylvester Avijit

doi:10.1016/j.matpr.2020.01.419

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…Aluminum oxide and magnesium aluminate are basic compounds contained in the refractory composition, which are products that have low thermal conductivity and high-temperature shock conditions of more than 1000 o C. Aluminum black dross can be an alternative material because it has these compounds. Aluminum black dross contains aluminum nitride which is a compound that has a high thermal conductivity which is not ideal for refractories; therefore, it is necessary to remove AlN (Ramaswamy et al, 2019a;Ramaswamy et al, 2019b;). Zirconia addition can be performed on refractory synthesis to increase thermal shock resistance with a 1:1 ratio with 10% polyvinyl alcohol (Ramaswamy et al, 2019a).…”

Section: Refractorymentioning

confidence: 99%

“…During the aluminum black dross leaching process, most of the compounds dissolved and released ammonia and hydrogen gases. Hydrogen gas is produced from the reaction of aluminum metal with water, while ammonia gas is formed from AlN which reacts with moisture in the soil and with geothermal heat which leads to exothermic reactions releasing gases that are harmful to health (Ramaswamy et al, 2019b).…”

Section: Introductionmentioning

confidence: 99%

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Utilization of hazardous waste of black dross aluminum: processing and application-a review

Lukita¹,

Abidin²,

Riani³

et al. 2022

J.Degrade.Min.Land Manage.

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Aluminum black dross is produced by the secondary smelting process of aluminum. Aluminum black dross is classified as hazardous waste because it is reactive with water and produces substances and gases that are harmful to humans and the environment. Generally, aluminum black dross is managed by landfill method, but because it is produced in large amounts every year, the aluminum black dross needs to be utilized to reduce the impact on the environment. Aluminum black dross consists of large amounts of metal oxide and salts. The amount of metal oxide content in aluminum black dross can be used as raw material. This paper review types of processes for utilizing black dross aluminum as raw material in value-added products. aluminum black dross can be used as alumina, adsorbent, zeolite, composites, geopolymers, refractories, and fillers. By utilizing aluminum black dross waste into various products that have economic value, besides being able to protect the environment, it can also reduce environmental resource use.

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Section: Refractorymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Utilization of hazardous waste of black dross aluminum: processing and application-a review

Lukita¹,

Abidin²,

Riani³

et al. 2022

J.Degrade.Min.Land Manage.

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show abstract

“…The ceramic industry faces weakening and depleting mineral and non-mineral deposits, which increases ecological problems and costs of mineral raw materials [7]. Therefore, it is a "green" practice to partially replace traditional raw materials with industrial wastes in the manufacturing of conventional refractory, which provides environmental and economic benefits [8].…”

Section: Introductionmentioning

confidence: 99%

Waste to Wealth Strategy: Preparation and Properties of Lightweight Al2O3-SiO2-Rich Castables Using Aluminum Dross Waste

Ding

et al. 2021

Materials

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Aluminum dross is a well-known industrial waste generated in the aluminium industry, and its recycling and reuse is still a worldwide issue. Herein, aluminum dross waste (ADW) was recycled to progressively replace the aggregate fraction of clay at 70, 75, 80, 85, and 90 wt% for the fabrication of Al2O3-SiO2-rich porous castable refractories. Their physical properties and mechanical behavior were assessed by the measurement of linear shrinkage rate, bulk density, apparent porosity, cold crushing strength, and thermal conductivity. The microstructure and phase evolutions were analyzed via scanning electron microscopy (SEM) and X-ray diffraction (XRD). The incorporation of 85 wt% of ADW allowed the development of a waste-containing conventional refractory castable with improved properties as compared to those of the other samples. The sustainable refractory castable exhibited decent thermal conductivity and physical and mechanical characteristics, and is suitable for application as reheating furnace lining. It is a “green” practice to partially replace the traditional raw materials with industrial waste in the manufacture of conventional refractory castables and provides environmental and economic benefits.

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Removal of AlN from secondary aluminum dross by pyrometallurgical treatment

Wang

Zhong

Yue

et al. 2021

J. Cent. South Univ.

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Synthesis of Value Added Refractories from Aluminium Dross and Zirconia Composites

Cited by 6 publications

References 5 publications

Utilization of hazardous waste of black dross aluminum: processing and application-a review

Utilization of hazardous waste of black dross aluminum: processing and application-a review

Waste to Wealth Strategy: Preparation and Properties of Lightweight Al2O3-SiO2-Rich Castables Using Aluminum Dross Waste

Removal of AlN from secondary aluminum dross by pyrometallurgical treatment

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