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PROCESS AND SYSTEM FOR RECOVERING RARE EARTH ELEMENTS 发明申请

2022-06-02 3400 1680K 0

专利信息

申请日期 2025-02-22 申请号 US17426044
公开(公告)号 US20220112576A1 公开(公告)日 2022-04-14
公开国别 US 申请人省市代码 全国
申请人 HER MAJESTY THE QUEEN IN RIGHT OF CANADA AS REPRESENTED BY THE MINISTER OF NATURAL RESOURCES CANADA
简介 The present application provides a process and system for recovery of rare earth elements. In particular, the present application provides a process for obtaining a precipitate of rare earth elements (REE), comprising : (a) obtaining an acidic composition comprising the REE (such as, for example, a pregnant leach solution); (b) adding a reducing agent to the acidic composition and adjusting the pH with a basic agent; (c) adding oxalate directly to the composition formed in step (b) and mixing to form an REE oxalate precipitate; (d) removing the REE oxalate precipitate from the mixture of step (c).


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