Title:
RAW MATERIAL FOR DESICCANT AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO2006082919
Kind Code:
B1
Abstract:
A raw material for desiccants which can be inhibited from undergoing an abrupt reaction with water and generating intense heat and has high hygroscopicity; and a process for producing the material. The process for producing a raw material for desiccants is characterized by comprising a mixture production step in which a mixture comprising 80-93 mass% calcium carbonate and 7-20 mass% at least one member selected from the group consisting of alkali metal salts, alkali metal hydroxides, alkali metal sulfides, alkali metal nitrides, and copper oxides is produced and a burning step in which the mixture is burned at 1,050°C or higher. The raw material for desiccants is one obtained by the process. In this raw material for desiccants, the area in which water comes into direct contact with the material has a proper size, whereby the raw material for desiccants is inhibited from undergoing an abrupt hydration reaction with water. A balance between the heat generation by the hydration reaction of the material and the heat dissipation by air cooling is hence maintained.
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Inventors:
MATSUMOTO YASUMICHI (JP)
SAKAMOTO TATSUNOBU (JP)
TAKAKI YASUNORI (JP)
SAKAMOTO TATSUNOBU (JP)
TAKAKI YASUNORI (JP)
Application Number:
PCT/JP2006/301857
Publication Date:
October 19, 2006
Filing Date:
February 03, 2006
Export Citation:
Assignee:
NAT UNIV CORP KUMAMOTO UNIV (JP)
SAKAMOTO SEKKAI KOGYOSHO INC (JP)
MATSUMOTO YASUMICHI (JP)
SAKAMOTO TATSUNOBU (JP)
TAKAKI YASUNORI (JP)
SAKAMOTO SEKKAI KOGYOSHO INC (JP)
MATSUMOTO YASUMICHI (JP)
SAKAMOTO TATSUNOBU (JP)
TAKAKI YASUNORI (JP)
International Classes:
B01D53/28; C01F11/06
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