Invention Grant
- Patent Title: Rare earth recovery from phosphor material and associated method
- Patent Title (中): 从稀土稀土稀土回收及相关方法
-
Application No.: US12972589Application Date: 2010-12-20
-
Publication No.: US08282703B2Publication Date: 2012-10-09
- Inventor: Karthick Vilapakkam Gourishankar , Alok Mani Srivastava , Prasanth Kumar Nammalwar , Satya Kishore Manepalli
- Applicant: Karthick Vilapakkam Gourishankar , Alok Mani Srivastava , Prasanth Kumar Nammalwar , Satya Kishore Manepalli
- Applicant Address: US NY Niskayuna
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Niskayuna
- Agent Francis T. Coppa
- Main IPC: C22B59/00
- IPC: C22B59/00 ; C25C3/34

Abstract:
A method for recovering at least one rare earth element from a phosphor is presented. The method includes a halogenation step (a) and a reduction step (b). The phosphor is first halogenated in a molten salt to convert at least one rare earth constituent contained therein to a soluble rare earth halide. Then, the rare earth halide in the molten salt can be reduced, to convert the rare earth halide to a rare earth element in its elemental state. A method for individually recovering multiple rare earth elements from a phosphor is also presented.
Public/Granted literature
- US20120152062A1 RARE EARTH RECOVERY FROM PHOSPHOR MATERIAL AND ASSOCIATED METHOD Public/Granted day:2012-06-21
Information query