Process by means of which moulded coke can be obtained from non-cokable coals
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United States of America Patent
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Apr 8, 1980
Grant Date -
N/A
app pub date -
Mar 21, 1978
filing date -
Mar 28, 1977
priority date (Note) -
Expired
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Abstract
Process for the preparation of a moulded coke according to which agglomerates are heated in a non-oxidizing atmosphere, this process being characterized in that the agglomerates are prepared by compression from a paste containing: from 60 to 85% by weight of non-cokable coals, from 10 to 30% by weight of agglutinating coals having a swelling index greater than 2, and from 5 to 13% by weight of binder, which paste, when heated at 6.degree. C. per minute in the ARNU dilatometer gives a contraction of between 3 and 15%, preferably between 5 and 10% and a swelling of zero or near 0, and in that the agglomerates are heated in a non-oxidizing atmosphere from a temperature of about 100.degree. C. to a temperature of at least about 700.degree. C., with a rate of heating of between 7 and 14.degree. C. per minute.
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