Title
Binder behavior on chromite-carbon composite pellets
Date Issued
01 November 2016
Access level
open access
Resource Type
journal article
Author(s)
Takano C.
Mourao M.
Tagusagawa S.
University of Sao Paulo
Publisher(s)
Universidade Federal de Sao Carlos
Abstract
The influence of binders on the mechanical properties of chromite, self-reducing pellets, after subjecting to high temperatures, is analyzed in this paper. Bentonite, sodium silicate, and a combination of bentonite with carboxymethyl cellulose (CMC) were tested with different contents. All of the raw materials were characterized by chemical analysis and particle size distribution. The materials were pelletized (P1 to P7). All of the bounded green and dried pellets (P2 to P7) achieved the desired mechanical strengths, and none presented decrepitation. The best performance was obtained by the pellet P7 (4% sodium silicate as binder), with the green strength of 34 N/pellet, the dried strength of 50 N/pellet, and the strength was higher than 110 N/pellet after heat treatment at critical temperatures between 1173 and 1373 K. The unitary reduction reaction fraction was achieved after 10 minutes, at 1773 K.
Start page
1344
End page
1350
Volume
19
Issue
6
Language
English
OCDE Knowledge area
Ingeniería química Química orgánica
Scopus EID
2-s2.0-85007129456
Source
Materials Research
ISSN of the container
15161439
DOI of the container
10.1590/1980-5373-MR-2016-0264
Sources of information: Directorio de Producción Científica Scopus