BINDER COMPOSITIONS AND PROCESSES OF PREPARING IRON ORE PELLETS
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United States of America Patent
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Issued Date -
Feb 6, 2014
app pub date -
Aug 6, 2013
filing date -
Aug 6, 2012
priority date (Note) -
Abandoned
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Abstract
Binder compositions for agglomerating iron ore fines are provided, the compositions comprising: (a) about 30 to about 80% by weight one or more types of anionic or nonionic acrylamide-containing polymer; (b) about 10 to about 35% by weight one or more types of inorganic or organic monomeric electrolyte; and (c) about 10 to about 35% one or more types of finely ground wood fiber. A process for preparing iron ore pellets with the binder compositions is also provided, the process comprising: (i) adding a binder composition to particulate iron ore to form a mixture; and (ii) forming the mixture into pellets.
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