C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
25/124
C04B 18/02 (2006.01) C04B 40/02 (2006.01)
Patent
CA 1313030
ABSTRACT A mixture of inorganic binder, water and fly ash is granulated; the formed granules are deposited upon a continuously supplied layer of fly ash embedding material and said fly ash layer together with granules is fed into a hardening reactor. The granules are hardened by injecting steam into the reactor so that the temperature of the granules is raised and maintained at a temperature comprised between 50 and 100°C. After curing the hardened granules are separated from the embedding material which is used for forming new granules. The embedding material has a water absorbing capacity of 15-25% and the pH of the moist embedding material is above 4.
572171
Rademaker Pieter Dirk
Spanjer Jacobus Johannes
Hoogovens Technical Services Energy & Environment Bv
Moffat & Co.
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