Affiliation:
1. Companhia Pedras Congonhas Ltda.; Ouro Preto Federal University
2. Ouro Preto Federal University, Brazil
Abstract
Pelletizing iron ore fines is an agglomeration process that through a thermal treatment converts the ultra-fines fraction thereof into small balls ranging in size from 8mm (0.31 in.) to 18mm (0.71 in.), with adequate characteristics for feeding steel reduction works. The binder more used to make pellets is bentonite, which is an item of significant cost in the process. The present paper aims at evaluating the use of serpentinite instead of bentonite. The results obtained show that the full substitution of bentonite for serpentinite is unfeasible. However a potential does exist for using serpentinite and bentonite together in the iron ore palletizing process in the proportion of 1:1.
Subject
Economic Geology,Geochemistry and Petrology,Geology,Waste Management and Disposal,General Materials Science
Reference23 articles.
1. The potential use of serpentinite at the passive treatment of acid mine drainage;BERNIER L. R.;Environ Geol.,2005
2. Caracterização da rocha serpentinito: Relatório interno da Pedras Congonhas Ltda;BRANDÃO P.,2007
3. A study of synthetic forsterite refractory materials using waste serpentine cutting;CHENG T.W.;Mineral Engineering,2002
4. Envelhecimento de pelotas de minério de ferro com diferentes basicidades e teores de MgO;FONSECA V.,2003
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献