AMORPHOUS SUBSTANCE COMPRISING COMPOSITE OF PROTO-IMOGOLITE AND PHOSPHORIC ACID, AND ADSORBENT FOR DESICCANT AIR-CONDITIONING AND DEW CONDENSATION PREVENTING AGENT USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an adsorbent having excellent adsorption performances in medium-humidity and high-humidity regions.

SOLUTION: A suspension of proto-imogolite which is a precursor of imogolite is prepared and phosphoric acid is added to the suspension and heated to synthesize a composite comprising the proto-imogolite and phosphoric acid. An amorphous substance comprising the resultant composite of the proto-imogolite and phosphoric acid has an excellent steam adsorption performance of≥30 wt.% at a relative humidity of 10-60% and can be used as an adsorbent for desiccant air-conditioning. The amorphous substance also has a steam adsorption performance of≥200 wt.% at a relative humidity of≥60% and can be used as a dew condensation preventing agent.

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