公开(公告)号：US11505632B2

公开(公告)日：2022-11-22

申请号：US16615943

申请日：2018-06-28

申请人： JOINT-STOCK COMPANY «AXION—RARE-EARTH AND NOBLE METALS» ,  FEDERAL STATE AUTONOMOUS EDUCATIONAL INSTITUTION OF HIGHER EDUCATION «URAL FEDERAL UNIVERSITY NAMED AFTER THE FIRST PRESIDENT OF RUSSIA B.N. YELTZIN ,  JOINT-STOCK COMPANY «DALUR»

发明人： Dmitrii Alekseevich Kondrutskii ,  Vladimir Nikolaevich Rychkov ,  Evgenii Vladimirovich Kirillov ,  Sergey Vladimirovich Kirillov ,  Grigory Mikhailovich Bunkov ,  Evgenii Sergeevich Vostrov ,  Vitalii Aleksandrovich Tretiakov ,  Gadzhi Rabadanovich Gadzhiev ,  Nikolai Anatolevich Poponin ,  Denis Valerevich Smyshliaev

IPC分类号： C22B3/24 ,  C22B59/00 ,  C08F212/36 ,  C08F212/08 ,  C08J3/09 ,  C22B3/42 ,  C08K5/14 ,  C08K5/521 ,  C08K5/5313

摘要： The invention relates to a composition and method for producing a solid extracting agent for extraction of scandium from sulfuric acid solutions.
There is provided a solid extracting agent (Solex) for extraction of scandium from scandium-containing solutions comprising a styrene-divinylbenzene matrix with di-(2-ethylhexyl) phosphoric acid. The extracting agent further comprises tri-n-octylphosphine oxide, tributyl phosphate, isododecane, in the following ratio of components, wt. %: di-(2-ethylhexyl) phosphoric acid 32.0-37.5, tri-n-octylphosphine oxide 4.2-8.0, tributyl phosphate 0.8-1.7, isododecane 16.7-20.0, the remainder styrene-divinylbenzene, with the styrene/divinylbenzene ratio in the matrix equal to 75-80 to 20-25 wt. %. There is also provided a method of producing the Solex. The technical result is the production of a scandium-selective Solex with a high dynamic exchange capacity.