DESICCANT RAW MATERIAL AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a desiccant raw material which can be completely restrained from reacting with water and has enhanced safety and to provide a method for manufacturing the desiccant raw material. SOLUTION: A method for manufacturing the desiccant raw material comprises the steps of: mixing a calcined lime particle 11 with a higher fatty acid 12 to form such a primary particle 10 that the whole surface of the calcined lime particle 11 is covered with the higher fatty acid 12; granulating the primary particle to form such a secondary particle 20 that the primary particles 10 are coagulated while using the higher fatty acid 12 as a binder; and coating the whole surface of the secondary particle 20 completely with the higher fatty acid 12 to improve the water repellency. The possibility that the calcined lime particle 11 is in contact with water is made extremely low and is restrained from reacting with water. The amount of the higher fatty acid 12 to be added to the calcine lime particle 11 is preferably adjusted to 6-17 mass%, for example. COPYRIGHT: (C)2009,JPO&INPIT