公开(公告)号：US08172955B2

公开(公告)日：2012-05-08

申请号：US12280205

申请日：2007-02-23

申请人： Bruno Fournel ,  Julien Galy ,  Frédéric Barth ,  Patrick Lacroix-Desmazes ,  Serge Lagerge ,  Sophie Dussolliet ,  Jérôme Blancher

发明人： Bruno Fournel ,  Julien Galy ,  Frédéric Barth ,  Patrick Lacroix-Desmazes ,  Serge Lagerge ,  Sophie Dussolliet ,  Jérôme Blancher

IPC分类号： B08B7/04 ,  B08B3/04 ,  B08B3/10 ,  B08B3/14 ,  B08B5/02

CPC分类号： B01D11/0203 ,  B08B3/02 ,  B08B3/045 ,  B08B3/102 ,  B08B3/104 ,  B08B3/12 ,  B08B7/0021 ,  B08B2203/0288 ,  G21F9/125

摘要： Process for decontaminating, cleaning a solid organic substrate contaminated by solid radioactive particulate inorganic contaminants, in which: the said solid substrate is brought into contact with an extraction medium, devoid of water, comprising: dense pressurized CO2; at least one nonhalogenated surface-active compound chosen from block copolymers of poly(ethylene oxide) PEO and poly(propylene oxide) PPO, such as (EO)x-(PO)y diblock copolymers, (EO)x-(PO)y-(EO)x triblock copolymers and (PO)x-(EO)y-(PO)x, triblock copolymers, where x and y are integers from 2 to 80 with x other than y; and polydi(1 to 6C)alkylsiloxanes, such as polydimethylsiloxane (PDMS); and at least one complexing agent chosen from tributyl phosphate (TBP), crown ethers, tributylphosphine oxide, triphenylphosphine oxide and tri(n-octyl)phosphine oxide; the solid substrate and/or the extraction medium is/are subjected, simultaneously with the contacting operation, to a mechanical action.

摘要翻译： 用于净化，清洁被固体放射性颗粒无机污染物污染的固体有机基质的方法，其中：使所述固体基质与无水的萃取介质接触，所述提取介质包含：加压的CO 2; 至少一种选自聚（环氧乙烷）PEO和聚（环氧丙烷）PPO的嵌段共聚物的非卤代表面活性化合物，例如（EO）x-（PO）y二嵌段共聚物，（EO）x-（PO）y - （EO）x三嵌段共聚物和（PO）x-（EO）y-（PO）x，三嵌段共聚物，其中x和y是2至80的整数，x不是y; 和聚二（1至6C）烷基硅氧烷，如聚二甲基硅氧烷（PDMS）; 和至少一种选自磷酸三丁酯（TBP），冠醚，三丁基氧化膦，三苯基氧化膦和三（正辛基）氧化膦的络合剂; 固体基质和/或提取介质在接触操作的同时受到机械作用。