C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 7/36 (2006.01) C04B 7/44 (2006.01) C04B 7/48 (2006.01) F27B 7/06 (2006.01)
Patent
CA 2055965
ABSTRACT OF THE DISCLOSURE A rotary cement kiln is operated with predried paper sludge in a secondary combustion period. The predrying of the paper sludge from a moisture content of about 50% by weight to a moisture content of about 30% by weight is effected with flue gas from the inlet end of the rotary kiln.
Pwa Ortmann Aktiengesellschaft
Sim & Mcburney
Wopfinger Stein-Und Kalkwerke Schmid & Co.
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