C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
261/64
C04B 7/02 (2006.01) C04B 7/24 (2006.01) C04B 7/43 (2006.01)
Patent
CA 1082747
A B S T R A C T Waste matter is incinerated in a combustion zone external to a rotary cement kiln. The resulting gaseous product is taken up in effluent gas from the cement making process in contact with calcareous material. At least some of the combustion zone bottom ash is combined in the eventual standard Portland cement by firing it in the kiln with the clinker- forming materials. The combustion zone can for instance be a fluidised bed combustor. The combustion zone can be a zone through which the clinker-forming materials pass at a temperature such that the waste matter ignites. -1-
269420
Associated Portland Cement Manufacturers Limited (the)
G. Ronald Bell & Associates
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