The possible use of Bayer process cyclone fines for manufacture of abrasives

This paper deals with the feasibility of producing synthetic abrasives from a by-product of the Bayer process: the cyclone fines, through synthesis aided by mineralizers addition. The main result has been the production of a low temperature (1200-1300 deg C) polish by adding fluoride mineralizers, t...

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Bibliographic Details
Published in:	Revista de metalurgia (Madrid) Vol. 38; no. 6; pp. 433 - 442
Main Authors:	SANCHO, J, GARCIA, M. P, GARCIA, M. F, AYALA, J, VERDEJA, L. F
Format:	Journal Article
Language:	English
Published:	Madrid Centro Nacional de Investigaciones Metalúrgicas 01-11-2002
Subjects:	Applied sciences Exact sciences and technology Metals. Metallurgy Production of metals Scrap. Recycling. Recovery metals Scanning electron microscopy Cyclone fines. Bayer process. Ceramic synthesis. Abrasives polish Fines Abrasives Recycling Experimental study Chemical synthesis Ceramic materials X ray diffraction By product
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Summary:	This paper deals with the feasibility of producing synthetic abrasives from a by-product of the Bayer process: the cyclone fines, through synthesis aided by mineralizers addition. The main result has been the production of a low temperature (1200-1300 deg C) polish by adding fluoride mineralizers, that could be in clear competence with synthetic corundum obtained also in this work by a more traditional way: sodium removal, using of magnesium oxide as mineralizer, and high calcination temperatures (1700 deg C).
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0034-8570 1988-4222
DOI:	10.3989/revmetalm.2002.v38.i6.429