Reduction kinetics of dusts and pellets from nickeliferous laterite rotary kiln treatment

Zevgolis, EN; Kostika, I-P; Halikia, I

dc.contributor.author	Zevgolis, EN	en
dc.contributor.author	Kostika, I-P	en
dc.contributor.author	Halikia, I	en
dc.date.accessioned	2014-03-01T02:50:11Z
dc.date.available	2014-03-01T02:50:11Z
dc.date.issued	2005	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34942
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-23244460221&partnerID=40&md5=8cd33f9e3e747e9da13364009158f32e	en
dc.subject	Dust	en
dc.subject	Kinetics	en
dc.subject	Laterites	en
dc.subject	Reduction	en
dc.subject	Rotary kiln	en
dc.subject.other	Electrostatics	en
dc.subject.other	Ore pellets	en
dc.subject.other	Ore treatment	en
dc.subject.other	Reaction kinetics	en
dc.subject.other	Reduction	en
dc.subject.other	Rotary kilns	en
dc.subject.other	Thermal effects	en
dc.subject.other	Washing	en
dc.subject.other	Laterites	en
dc.subject.other	Polycyclones	en
dc.subject.other	Reduction kinetics	en
dc.subject.other	Dust	en
dc.title	Reduction kinetics of dusts and pellets from nickeliferous laterite rotary kiln treatment	en
heal.type	conferenceItem	en
heal.publicationDate	2005	en
heal.abstract	In this work, the reduction kinetics of dust from nickeliferous Greek laterites is investigated. The dust is a by-product from laterite treatment in rotary kilns and it comes from washing towers, electrostatic filters and polycyclones. Laboratory made pellets from this dust were also examined. Reducibility was studied in the temperature range of 700°C to 850°C in a laboratory tube furnace. Kinetic analysis of the results showed that at lower temperature values the mixed kinetic model verifies the experimental results of dust and pellet samples. At higher temperatures (800° and 850°C) diffusion becomes the rate controlling mechanism. The calculated activation energy values verify also the above mentioned results.	en
heal.journalName	TMS Annual Meeting	en
dc.identifier.spage	485	en
dc.identifier.epage	496	en