|Series||US Bureau of Mines Technical Progress Report -- 52|
|Contributions||Barnard, P., Starliper, A., Dressel, W.|
Recycling of steelmaking dusts: The Radust concept. Recycling of dusts and other wastes of steelmaking is becoming to a necessity of two reasons: due to high contents of iron oxides dusts are valuable raw material for steelmaking and tightening. Therefore, how to separate zinc from the steelmaking dusts in an economic way becomes a crucial step for recycling of these wastes in iron and steelmaking industry . There are two main. Recycling of steelmaking dusts - the redust concept J. Min. Met. 41 B () 7 good and high evaporation degree of those components under the conditions of Radust test runs can be expected, even when the reduction degree in the flame and reactor is only moderate. The fuel requirements for the Radust process were as well evaluated for
The National Waste & Recycling Association (NWRA), Arlington, Virginia, and the Environmental Research & Education Foundation (EREF), Raleigh, North Carolina, have partnered to produce "Waste & Recycling For Dummies," an educational book for industry professionals, government officials, students and consumers. oxygen steelmaking (BOS) dusts, the recycling of the wastes has to be addressed. Zinc in the wastes is harmful to the operation of steelmaking processes and needs to be removed before they are recycled. Leaching with an organic acid can be the most economical and environmentally friendly hydrometallurgical method for treating the. Likewise, steelmaking dusts and sludges are processed so that other metals, such as zinc, can be recovered and reused. Steel is the engine that drives the recycling of many consumer goods as can be seen by the 95 percent recycling rate of automobiles, the 88 percent recycling rate of appliances and the 70 percent recycling rate of steel packaging. The steelmaking industrial sector generates a wide variety of solid wastes, predominantly composed of slag, dust, sludge, and scrap. The need to find a correct environmental alternative to recycle steelmaking wastes, as well as the possibility to bring some technical advantageous to clay bricks for civil construction, makes this industrial segment present itself as an .
These dusts contain toxic elements, such as heavy metals, and are thus classiﬁed as harmful waste making the disposal of them expensive. In addition, direct recycling of dust back to steel production is hindered due to the presence of zinc. In this literature survey the alkaline leaching of zinc from iron and steelmaking dusts is reviewed. Recycling of iron and steelmaking dusts is a key issue in environmental protection efforts and to ensure efficient utilization. In this investigation, we developed a novel recovery process that uses a dispersed in-situ phase induced by an explosive reaction of composite balls of iron and steelmaking dusts. We designed and prepared composite balls for this function using a laboratory model. Recycling of Steelmaking Dusts. Authors Barnard-PG; Starliper-AG; Dressel-WM; Fine-MM Source NTIS: PB pages Link NIOSHTIC No. Abstract Methods are described for upgrading steel furnace dusts to produce high-iron pellets for recycling. The electronic industry is one of the world's largest and prominent manufacturing sectors; hence, the waste streams generated from the discarded electric and electronic equipment are also augmenting quite rapidly at a rate of 5% per year [32,33].These wastes should be considered as noteworthy secondary resources of materials, thus developing various recovery and recycling techniques in a.