PURPOSE: To obtain an easily regenerable drying agent having strong hygroscopicity as the drying agent, by a method wherein a deliquescent hygroscopic agent such as calcium chloride, a heat-resistant hardly-soluble inorg. substance and an aqueous binder are mixed and the resulting mixture is heated and dried.
CONSTITUTION: A deliquescent hygroscopic agent such as calcium chloride or magnesium chloride, a heat-resistant hardly soluble inorg. substnace such as clay or red mud and an aqueous binder such as an aqueous colloidal silica dispersion or a mixture of cement and water are mixed and the resulting mixture is heated and dried to obtain a drying agent. The obtained drying agent has strong hygroscopicity and can be easily regenerated by heating as well as is expensive and economical.
UMEDA SEIICHI
INOHANA SHINJI
| JPS5194488A | 1976-08-19 | |||
| JPS5067784A | 1975-06-06 | |||
| JPS565136A | 1981-01-20 |