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AssigneeTakeda Chemical Industries, Ltd.
InventorsTatsuro Takeuchi, Masaki Sokukawa, Ryuzo Kimoto
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An adsorbent, which is prepared by subjecting to curing a mixture consisting of (a) one part by weight of at least one member selected from the group consisting of titanium oxide hydrate, zirconium oxide hydrate and tin oxide hydrate and of (b) about 1/10 to 3 parts by weight of an epoxy, unsaturated polyester or polyurethane resin. The adsorbent can be used as an adsorbent for a great variety of anions and cations and especially as the adsorbent for phosphate ion. The adsorbent displays also improved chemical resistance, resistant to acids and alkalis, and can be subjected to repeated desorption and regeneration procedures without causing any deterioration of its adsorptive capacity, thus permitting the repeated usage over a long period of time.
An adsorbent, which is prepared by subjecting to curing a mixture consisting of (a) one part by weight of at least one member selected from the group consisting of metal oxide hydrate represented by the general formula:
A process for preparing an adsorbent, which comprises curing a mixture consisting of (a) one part by weight of at least one member selected from the group consisting of metal oxide hydrate represented by the general formula:
A process for removing anions or cations from an acidic or alkaline solution containing anions or cations, which comprises the step of allowing an adsorbent to contact an acidic or alkaline solution containing anions or cations, the adsorbent being prepared by subjecting to curing a mixture consisting of (a) one part by weight of at least one member selected from the group consisting of metal oxide hydrate represented by the general formula:
Dependencies are inferred from the claim text.