Process for producing hardened materials from combustion ash of fluidized bed
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United States of America Patent
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-
Mar 31, 1992
Grant Date -
N/A
app pub date -
Jun 24, 1988
filing date -
Jun 25, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to processes for producing a material usable as a suitable civil engineering and construction material by treating a combustion ash formed by the combustion of a fluidized bed comprising a coal as the fuel and limestone as a desulfurizing agent. In this process, quick lime contained therein is sufficiently slaked at first by addition of water and heat thus generated is released to prevent disintegration of the product, and then the product is subjected to atmospheric pressure steam treatment to obtain a product of high strength in a short time.
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