Process for producing cement from metallurgical slag

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United States of America Patent

PATENT NO 5516357
SERIAL NO

08307642

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Abstract

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In a process for the preparation of cement from metallurgical slags, in which liquid slags from reduction processes and steelworks processes, e.g. blast furnace and converter slag, are mixed together and mixed with lime the procedure is such that in a first cooling phase at temperatures above 1000.degree. C., and preferably above 1200.degree. C., the cooling is slower than in a subsequent second cooling phase and that the solidified product obtained is granulated and/or ground in order to obtain directly cement with improved hydraulic properties, in particular increased final strength.

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Patent Owner(s)

Patent OwnerAddress
"HOLDERBANK" FINANCIERE GLARUS AGHAUPTSTRASSE 44 GLARUS CH-8750 SWITZERLAND

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Edlinger, Alfred Baden, CH 58 273
Rey, Theo Aarau, CH 4 36

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