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Cold bond agglomerates of iron and steel plant by products as burden material for blast furnaces
Luleå tekniska universitet.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
1999 (English)In: REWAS '99: Global Symposium on Recycling, Waste Treatment and Clean Technology : proceedings of the "REWAS'99: Global Symposium on Recycling, Waste Treatment and Clean Technology", held in San Sebastián, Spain, September 5 - 9, 1999 : TMS Fall 1999 Extraction and Process Metallurgy Meeting / [ed] I. Gaballah, 1999, 1539-1548 p.Conference paper (Refereed)
Abstract [en]

During various steps in the production of steel from the raw iron ore pellets a wide variety of by-products are generated. These by-products are in form of sludges, slags or fine powder and are generally rich in iron oxides. Hence, they have the potential of being recycled back to the blast furnace after having being agglomerated. For agglomerates to be considered suitable as feed material for a blast furnace, they should have sufficient room temperature strength and complete reducibility of iron containing elements without degradation or excessive swelling. Cold bond agglomeration process offers an economically attractive and environmentally safe method for achieving this. In this process, various necessary ingredients are agglomerated using a binder into a form suitable for charging into a blast furnace. The paper presents results of the experiments carried out to study the effect of various parameters on the behaviour of briquettes prepared using iron and steel plant by-products and ordinary Portland cement (OPC). The room temperature properties of the briquettes have been found to depend upon various parameters like: the particle size distribution, composition of the raw materials and processing conditions. The properties of briquettes subjected to high temperature under reducing environment depend upon the temperature of reduction, particle size distribution and composition of the raw material

Place, publisher, year, edition, pages
1999. 1539-1548 p.
Research subject
Process Metallurgy
URN: urn:nbn:se:ltu:diva-36997Local ID: adddb1e0-fcc0-11dc-a946-000ea68e967bOAI: diva2:1010496
Global Symposium on Recycling, Waste Treatment and Clean Technology : 05/09/1999 - 09/09/1999

Godkänd; 1999; 20080328 (cira)

Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-02-06Bibliographically approved

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