Boehmite process - A new approach in alumina production

Panias, D; Paspaliaris, I

dc.contributor.author	Panias, D	en
dc.contributor.author	Paspaliaris, I	en
dc.date.accessioned	2014-03-01T01:52:57Z
dc.date.available	2014-03-01T01:52:57Z
dc.date.issued	2003	en
dc.identifier.issn	00442658	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/26797
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0037224283&partnerID=40&md5=bd9a381e704d8b6537475e3948c0cf87	en
dc.subject	Bayer process	en
dc.subject	Boehmite	en
dc.subject	Gibbsite	en
dc.subject	Precipitation	en
dc.subject.other	Crystalline materials	en
dc.subject.other	Precipitation (chemical)	en
dc.subject.other	Smelting	en
dc.subject.other	Bayer processes	en
dc.subject.other	Alumina	en
dc.title	Boehmite process - A new approach in alumina production	en
heal.type	journalArticle	en
heal.publicationDate	2003	en
heal.abstract	Alumina is produced almost exclusively for more than 100 years by the well-known Bayer process. One of the characteristics of the Bayer process is the production of pure crystalline gibbsite, alumina trihydrate, during the precipitation stage as a precursor for the alumina production. The Boehmite process is a novel variation of the Bayer process. The novelty of this process is related to the production of pure crystalline Boehmite, alumina monohydrate, at the precipitation stage as an intermediate product in the production of alumina. The main characteristic of the new process is that Boehmite is efficiently produced by precipitation from Bayer liquors under atmospheric conditions. The new process can be used for the production of smelter grade alumina, as well as, for the production of several qualities of specialty aluminas. This paper gives a general overview of the Boehmite process. It emphasizes on the phenomena affecting, on the one hand, the efficiency of the Boehmite precipitation process and, on the other hand, the product quality. Finally, the two alternatives, the current Bayer process and the Boehmite process, will be compared and the advantages arising from the application of the new process will be discussed.	en
heal.journalName	Erzmetall: Journal for Exploration, Mining and Metallurgy	en
dc.identifier.volume	56	en
dc.identifier.issue	2	en
dc.identifier.spage	75	en
dc.identifier.epage	81	en