发明名称 |
PROCEDE POUR SEPARER EN MILIEU AQUEUX DES LANTHANIDES ET/OU DES ACTINIDES PAR COMPLEXATION-NANOFILTRATION, ET NOUVEAUX COMPLEXANTS MIS EN OEUVRE DANS CE PROCEDE |
摘要 |
The invention relates to the separation of lanthanides and actinides by nanofiltration complexation. The object of the invention is to satisfy the existing need for a simple, efficient and economical technique for separating lanthanides and actinides. This object is achieved by a process consisting of using ligands of the polyamino acid type, such as EDTA or DTPA, for complexing lanthanides and/or actinides before separating them by nanofiltration. The invention further relates to novel polyamino acid ligands incorporating ligand structures additional to EDTA and DTPA. Application to the production of rare earths or nuclear waste processing, especially to recycling operations carried out on spent nuclear fuels is also discussed. |
申请公布号 |
FR2794032(B1) |
申请公布日期 |
2002.06.14 |
申请号 |
FR19990006902 |
申请日期 |
1999.05.27 |
申请人 |
UNIVERSITE CLAUDE BERNARD LYON I |
发明人 |
GUY ALAIN;FOOS JACQUES HENRI;LEMAIRE MARC;CHITRY FREDERIC;PELLET ROSTAING STEPHANE;GOZZI CHRISTEL |
分类号 |
B01D61/04;B01D61/16;C22B3/00;C22B3/22;C22B3/28;C22B7/00;C22B59/00;G21F9/10;(IPC1-7):B01D37/03;B01J45/00;B01J20/22 |
主分类号 |
B01D61/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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