Composite porous material, process for production and separation of metallic element
AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsHeiichiro Obanawa, Minoru Akiyama
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Abstract
A composite porous material comprising a particulate inorganic porous material and, contained in the pores of the material, an organic resin having a micro-void. The composite porous material has a surface area larger than that of the inorganic porous material. The composite porous material has a high dimensional stability comparable to that of an inorganic porous material while exhibiting a high separating and adsorbing capacity comparable to that of the conventional ion exchange resin or chelate resin. Therefore, it can advantageously be used as an adsorbent for various compounds or ions as well as a packing material for gas or liquid chromatography.
Claims16
A composite porous material comprising a particulate inorganic porous material and, contained in the pores of said inorganic porous material, a crosslinked organic resin having a micro-void, said composite material having a surface area larger than that of said inorganic porous material.
A process for producing a composite porous material, which comprises contacting a particulate inorganic porous material with a homogeneous liquid mixture selected from the group consisting of a mixture of a polymerizable monomer or oligomer, a crosslinking agent and a diluent and a mixture of a polymer, a crosslinking agent and a diluent to introduce said homogeneous liquid mixture into the pores of said particulate inorganic porous material, heating or exposing to actinic rays the mixture to produce an intermediate product comprising said inorganic porous material and, disposed in the pores of said inorganic porous material, a crosslinked polymer containing the diluent and removing the diluent from said intermediate product.
Dependencies are inferred from the claim text.