Examination of the jarosite-alunite precipitate addition in the raw meal for the production of Portland and sulfoaluminate-based cement clinkers

Katsioti, M; Tsakiridis, PE; Agatzini-Leonardou, S; Oustadakis, P

dc.contributor.author	Katsioti, M	en
dc.contributor.author	Tsakiridis, PE	en
dc.contributor.author	Agatzini-Leonardou, S	en
dc.contributor.author	Oustadakis, P	en
dc.date.accessioned	2014-03-01T01:22:19Z
dc.date.available	2014-03-01T01:22:19Z
dc.date.issued	2005	en
dc.identifier.issn	0301-7516	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16532
dc.subject	Alunite	en
dc.subject	Jarosite	en
dc.subject	Portland cement	en
dc.subject	Sulfoaluminate cement	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.classification	Mineralogy	en
dc.subject.classification	Mining & Mineral Processing	en
dc.subject.other	Alumina	en
dc.subject.other	Contamination	en
dc.subject.other	Gypsum	en
dc.subject.other	Hydrometallurgy	en
dc.subject.other	Microscopic examination	en
dc.subject.other	Nickel compounds	en
dc.subject.other	Portland cement	en
dc.subject.other	Precipitation (chemical)	en
dc.subject.other	Alunite	en
dc.subject.other	Jarosite	en
dc.subject.other	Portland clinkers	en
dc.subject.other	Sulfoaluminate cement	en
dc.subject.other	Mineral resources	en
dc.title	Examination of the jarosite-alunite precipitate addition in the raw meal for the production of Portland and sulfoaluminate-based cement clinkers	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.minpro.2005.01.007	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.minpro.2005.01.007	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	The aim of the present research work was to investigate the possibility of adding a jarosite-alunite chemical precipitate, a waste product of a new hydrometallurgical process developed to treat economically low grade nickel oxides ores, in the raw meal for the production of Portland cement clinker. The precipitate was also tested in the production of non-expansive, sulfoaluminate-based cement clinker, as a substitute for gypsum because of its high sulfate content. For the Portland clinker, two samples of raw meals prepared, one with ordinary raw materials (reference sample) and another with 1% jarosite-alunite precipitate. Both raw meals were sintered at 1450 degrees C. For the sulfoaluminate-based clinker, one raw meal contained 20% gypsum (reference sample) whereas the other contained 11% of the precipitate. Both raw meals were sintered at 1300 degrees C. The results of chemical and mineralogical analyses as well as the microscopic examination showed that the use of the jarosite-alunite precipitate did not affect the mineralogical characteristics of the so produced Portland cement clinker. In the case of sulfoaluminate-based cement clinker, there was confirmed the formation of the sulfoaluminate phase (C(4)A(3)(S) over bar), the most typical phase of this cement type. (c) 2005 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	International Journal of Mineral Processing	en
dc.identifier.doi	10.1016/j.minpro.2005.01.007	en
dc.identifier.isi	ISI:000231029500001	en
dc.identifier.volume	76	en
dc.identifier.issue	4	en
dc.identifier.spage	217	en
dc.identifier.epage	224	en