Binder behavior on chromite-carbon composite pellets

Adolfo Pillihuaman Zambrano, Cyro Takano, Marcelo Breda Mourao, Solon Yasuhiko Tagusagawa

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


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.

Original languageEnglish
Pages (from-to)1344-1350
Number of pages7
JournalMaterials Research
Issue number6
StatePublished - 1 Nov 2016


  • Chromite
  • Ferrochromium
  • Self-reducing pellets
  • Self-reduction


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