Invention Grant
- Patent Title: Processes for recovering rare earth elements from aluminum-bearing materials
- Patent Title (中): 从含铝材料回收稀土元素的工艺
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Application No.: US14005885Application Date: 2012-03-19
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Publication No.: US09260767B2Publication Date: 2016-02-16
- Inventor: Richard Boudreault , Denis Primeau , Heinz Krivanec , Carsten Dittrich , Joel Fournier , Raymond Simoneau , Maria Christina Garcia
- Applicant: Richard Boudreault , Denis Primeau , Heinz Krivanec , Carsten Dittrich , Joel Fournier , Raymond Simoneau , Maria Christina Garcia
- Applicant Address: CA St-Laurent
- Assignee: ORBITE TECHNOLOGIES INC.
- Current Assignee: ORBITE TECHNOLOGIES INC.
- Current Assignee Address: CA St-Laurent
- Agency: Bereskin & Parr LLP/S.E.N.C.R.L., s.r.l.
- International Application: PCT/CA2012/000253 WO 20120319
- International Announcement: WO2012/126092 WO 20120927
- Main IPC: C22B21/00
- IPC: C22B21/00 ; C22B59/00 ; C22B3/10 ; C22B3/44 ; C22B58/00 ; C22B26/12 ; C22B34/34 ; C22B3/06 ; C22B3/46 ; C22B34/12 ; C01G1/02 ; C01F7/06 ; C01F7/30 ; C01F7/22 ; C01G23/04 ; C01G3/02 ; C01G5/00 ; C01G7/00 ; C01G49/02 ; C01G9/02 ; C01G51/04 ; C01G39/02 ; C01G43/01 ; C01G53/04 ; C01G45/02 ; C01G55/00 ; C01B13/18 ; C01D1/00 ; C01F5/02 ; C01F15/00 ; C01F17/00

Abstract:
The present disclosure relates to processes for recovering rare earth elements from an aluminum-bearing material. The processes can comprise leaching the aluminum-bearing material with an acid so as to obtain a leachate comprising at least one aluminum ion, at least one iron ion, at least one rare earth element, and a solid, and separating the leachate from the solid. The processes can also comprise substantially selectively removing at least one of the at least one aluminum ion and the at least one iron ion from the leachate and optionally obtaining a precipitate. The processes can also comprise substantially selectively removing the at least one rare earth element from the leachate and/or the precipitate.
Public/Granted literature
- US20150307965A1 PROCESSES FOR RECOVERING RARE EARTH ELEMENTS FROM ALUMINUM-BEARING MATERIALS Public/Granted day:2015-10-29
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