公开(公告)号：EP1785186A4

公开(公告)日：2008-05-07

申请号：EP05749075

申请日：2005-06-07

Applicant: NAT INST FOR MATERIALS SCIENCE

Inventor： YAMADA HIROHISA ,  TAMURA KENJI ,  TANAKA JUNZO ,  IKOMA TOSHIYUKI ,  SUETSUGU YASUSHI ,  MORIYOSHI YUSUKE ,  WATANABE YUJIRO

IPC: B01J20/06 ,  B01J20/08 ,  G21F9/02 ,  G21F9/30

CPC classification number: B01J20/06 ,  B01J20/0222 ,  B01J20/0225 ,  B01J20/0251 ,  B01J20/0259 ,  B01J20/041 ,  B01J20/08 ,  B01J20/28004 ,  B01J20/28019 ,  B01J20/30 ,  C02F1/281 ,  C02F1/288 ,  C02F2101/006 ,  G21F9/02 ,  G21F9/12 ,  G21F9/30

Abstract: An adsorbent for a radioelement-containing waste which comprises a spherical layered double hydroxide described in the following (A) or a spherical metal hydroxide described in the following (B): (A) a nonstoichiometric compound represented by the following general formula (a) or (b): [M2+1-xM3+x(OH)2]x+[An-x/n·mH2O]x- .... (a) [Al2Li(OH)6]x+ [An-x/n·mH2O]x- .... (b) wherein 0.1 ≤ x ≤ 0.4, 0