Methods of calcining particulate material
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United States of America Patent
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Sep 13, 2011
Grant Date -
May 8, 2008
app pub date -
May 2, 2005
filing date -
May 3, 2004
priority date (Note) -
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Abstract
Disclosed herein is a method of calcining particulate material, such as kaolin. The method comprises providing a feed mixture comprising a particulate material, such as hydrous kaolin, wherein at least a portion of the particulate feed is coated with a liquid fuel. The method further comprises heating the particulate feed mixture to calcine the particulate feed and burn the liquid fuel to form a calcined product. The liquid fuel coating can act as a secondary, indirect heat source for calcining. The overall calcining temperatures and/or times can be reduced as a result of adding the liquid fuel.
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