专利检索 ap:("Ustav Organicke Chemie a Biochemie AV CR V.V.I.") AND inv:"Tomas DAVID" 第 1 页

1.

发明公开
TETRAAZADODECANE BASED CHELATING AGENTS FOR SEPARATION OF RARE EARTH ELEMENTS AND METHOD THEREFOR 审中-公开

公开(公告)号：US20230356105A1

公开(公告)日：2023-11-09

申请号：US18027283

申请日：2021-11-12

申请人： Ustav Organicke Chemie a Biochemie AV CR V.V.I.

发明人： Miloslav POLASEK , Kelsea Grace JONES , Tomas DAVID

IPC分类号： B01D9/00 , C01F17/13 , C07D257/02 , C22B59/00 , B01D15/32 , B01D61/14

CPC分类号： B01D9/005 , C01F17/13 , C07D257/02 , C22B59/00 , B01D15/327 , B01D61/145 , B01D2009/0086

摘要： The present invention related to the use of compounds of general formula (I) for separations of rare earth elements (lanthanides) by precipitation, wherein R is selected from the group consisting of H; —CH2COOH; R2, R3, R4, R5 and R6 areindependently selected from the group consisting of H; OH; —NO2; —COOH; phenyl; and/or R2 and R3 or R3 and R4 or R4 and R5 or R5 and R6 The invention further relates to a method of separation of rare earth elements by precipitation. together with two neighbouring carbon atoms of the aromatic ring form a six-membered aromatic ring.