Method for reducing organic chlorine compounds in cement...

Compositions: coating or plastic – Coating or plastic compositions – Inorganic settable ingredient containing

Reexamination Certificate

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C106S739000, C106S745000

Reexamination Certificate

active

08075686

ABSTRACT:
The method for reducing organic chlorine compounds in cement production facility is a method by which a quantity of organic chlorine compounds contained in powder is reduced in the cement production facility, and the method is provided with a heating step for heating the powder to separate the organic chlorine compounds from the powder or decompose the organic chlorine compounds and a gas thermal decomposing step for supplying heat-treated gas containing the organic chlorine compounds generated by heating the powder to a high temperature part of the cement production facility, thereby thermally decomposing the organic chlorine compounds contained in the heat-treated gas.

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U.S. Appl. No. 11/994,066, filed Dec. 27, 2007, Ichihara, et al.
Office Action issued Sep. 6, 2011, in Japan Patent Application No. 2005-205064 (with English-language Translation) The three Japanese references cited in this Office Action were cited on the IDS filed on Jan. 11, 2008 and considered by the Examiner on Feb. 17, 2011.

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