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Title:
METHOD OF PRODUCING CEMENT RAW MATERIAL AND THE CEMENT RAW MATERIAL
Document Type and Number:
Japanese Patent JP2002274900
Kind Code:
A
Abstract:

To provide a solid fuel and a cement raw material, which are produced by using a chlorine-based resin such as poly(vinyl chloride) as a raw material and a method of producing the same.

In the dechlorination treatment method comprising heating and decomposing a combustible substance containing chlorine together with inorganic powder containing metal capable of forming a chloride and then separating the formed water soluble metal chloride, the combustible substance containing chlorine and the inorganic powder mentioned above are reacted at 300 to 800°C under a low oxygen atmosphere, then after washing and removing the formed water soluble metal chloride, the inorganic powder is recovered and used as a portion of the cement raw material.


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Inventors:
AOYAMA HISANORI
YAMAMOTO YASUSHI
YAMAMOTO NORITOSHI
YOSHIKAWA TOMOHISA
MATSUNO MICHIO
Application Number:
JP2001071552A
Publication Date:
September 25, 2002
Filing Date:
March 14, 2001
Export Citation:
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Assignee:
TAIHEIYO CEMENT CORP
International Classes:
C04B7/36; C04B7/38; C04B7/42; C04B7/44; B09B3/00; (IPC1-7): C04B7/38; B09B3/00; C04B7/44
Domestic Patent References:
JPH09155326A1997-06-17
JPH09227882A1997-09-02
JPH11157890A1999-06-15
JP2002161282A2002-06-04
Attorney, Agent or Firm:
Chiba Hiroshi



 
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