Patent ID: 7094349

Claim:
An organic porous material capable of selectively adsorbing boron having a continuous pore structure which comprises macropores and mesopores, the macropores being interconnected with each other forming mesopores with a pore diameter of 0.02–200 μm in the interconnected parts, having a total pores volume of 1–50 ml/g, and comprising a compound forming a complex with boric acid introduced thereinto via covalent bond in an amount of 1 μmol/g or more of the porous material on a dry basis; wherein the organic porous material is selected from the group consisting of styrenic polymers, polyolefins, halogenated polyolefins, nitrile-containing polymers, (meth) acrylic polymers, a styrene-divinylbenzene copolymer, and a vinyl benzyl chloride-divinylbenzene copolymer.