Method for treating cement kiln dust

Details Method for treating cement kiln dust Method for treating cement kiln dust

2008-05-13

2011-10-25

Marcantoni, Paul (Department: 1731)

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

Reexamination Certificate

active

08043426

ABSTRACT:
A method for treating cement kiln dust containing alkaline metal salts includes the steps of hydration (formation of calcium hydroxide), dehydration i.e. drying, fractionation by sieving and carbonation (reaction of the fractionated moistened cement kiln dust) with CO2gas in a fluidized bed reactor.

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patent: 4584179 (1986-04-01), Galli
patent: 5792440 (1998-08-01), Huege
patent: 6613141 (2003-09-01), Key, Jr.
patent: 7141093 (2006-11-01), Charette
patent: 200527930 (2005-10-01), None
JP 200527930 A (Oct. 13, 2005) Yamada et al. Machine Translation into English.

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