Method and apparatus for disposing of waste dust generated in the manufacture of cement clinker
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United States of America Patent
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-
Aug 29, 2000
Grant Date -
N/A
app pub date -
Oct 20, 1999
filing date -
Oct 20, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of disposing of undesirable chemical compounds in waste dust generated in a first kiln in the manufacture of cement clinker by using the dust and slag as the feedstock material to a second kiln, heating the feedstock material in an oxidizing atmosphere, and raising the heat sufficient to diffuse the waste dust and the slag to form a hydraulic product such as cement clinker and lime but insufficient to volatilize previously precipitated chemical compounds in the feedstock material.
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