Method of making cement from base metal smelter slag
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United States of America Patent
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Oct 19, 1999
Issued Date -
N/A
app pub date -
May 8, 1998
filing date -
Jun 26, 1995
priority date (Note) -
Expired
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Abstract
A method of making cement from base metal smelter slag produced by a nickel, copper, lead or zinc smelter, includes crushing the slag with a source of calcium sulphate to a size of less than about 1/4 inch and heating the mixture to produce a cement, and grinding the cement to a size in the range of from about -250 to about 425 mesh.
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