Purine base adsorption material, purine base adsorption filter using it, purine base adsorption column packing material, and purine base removal system using them

摘要

The purine base adsorbing material of the present invention contains a 2: 1 type layered clay mineral represented by [(E1m + a / mE2 + b) (M1cM2d) (Si4-eAle) O10 (OHfF2-f)] and / or a derivative thereof. .. In the above formula, m is a natural number of 2 to 4, and a to f are 0.2 ≦ a + b 0.75, a ≠ 0, 0 ≦ b, 0 ≦ c ≦ 3, 0 ≦ d ≦ 2, 2 ≦ c + d. ≦ 3, 0 ≦ e 4, 0 ≦ f ≦ 2 is satisfied, and E1 is Mg, Al, Si, Sc, Ca, Cr, Sr, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, An element selected from Zn, Ga, Zr and Ba, which is a polyvalent cation between layers, E2 is an element selected from Na, Li and K, which is a monovalent cation between layers, and M1 is Mg, The element selected from Fe, Mn, Ni, Zn and Li, M2 is an element selected from Al, Fe, Mn and Cr, and M1 and M2 form an octahedral sheet.