Pelletising-sintering, prereduction, and smelting of Greek chromite ores and concentrates

Vazarlis, HG; Lekatou, A

dc.contributor.author	Vazarlis, HG	en
dc.contributor.author	Lekatou, A	en
dc.date.accessioned	2014-03-01T01:09:30Z
dc.date.available	2014-03-01T01:09:30Z
dc.date.issued	1993	en
dc.identifier.issn	0301-9233	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11031
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0027147048&partnerID=40&md5=a2df691cda51c7b37cd9d816e88b384d	en
dc.subject.classification	Metallurgy & Metallurgical Engineering	en
dc.subject.other	Chromite	en
dc.subject.other	Pelletizing	en
dc.subject.other	Reduction	en
dc.subject.other	Sintering	en
dc.subject.other	Smelting	en
dc.subject.other	Chromite ore treatment	en
dc.subject.other	Chromite ores concentrates	en
dc.subject.other	Greece	en
dc.subject.other	Prereduction	en
dc.subject.other	Chromium ore treatment	en
dc.title	Pelletising-sintering, prereduction, and smelting of Greek chromite ores and concentrates	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1993	en
heal.abstract	A study on the pelletising-sintering, prereduction, and smelting of (mainly) Greek chromites is presented. The compressive strength of fired chromite pellets was shown to be affected negatively by an increase of the content of the gangue of chromite and affected positively by increases of the proportion of fines in the pelletising mix up to 75%-74 mum, of the content of the dust recovered from industrial production of high carbon ferrochromium, and of the pellet diameter. Very satisfactory degrees of prereduction of Greek chromites were attained, which were strongly dependent on parameters such as temperature, time, variations of carbon addition, particle size of reactants, chromite composition, and type of carbonaceous reducing agent. A preliminary kinetic study suggests that the diffusion of carbon through the reduction products is the rate limiting step of the prereduction of Greek chromites. Satisfactory high carbon ferrochromium was produced by smelting Greek chromites, using coke of Greek lignite as reductant.	en
heal.publisher	INST MATERIALS	en
heal.journalName	Ironmaking and Steelmaking	en
dc.identifier.isi	ISI:A1993KT30800006	en
dc.identifier.volume	20	en
dc.identifier.issue	1	en
dc.identifier.spage	42	en
dc.identifier.epage	53	en