| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of efficiently manufacturing zeolite, particularly high purity X-type zeolite or A-type zeolite using waste diatom earth used in beer manufacturing, and the zeolite obtained by the method. SOLUTION: The zeolite is obtained by dissolving the waste diatom earth used in a filtering step of the beer manufacturing process and containing organic compounds as it is in a sodium hydroxide aqueous solution to obtain a sodium silicate aqueous solution, dissolving sodium aluminate or a waste aluminum material in a sodium hydroxide aqueous solution to obtain sodium aluminate aqueous solution and carrying out hydrothermal synthesis using the sodium silicate aqueous solution and the sodium aluminate aqueous solution. COPYRIGHT: (C)2007,JPO&INPIT
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