阅读说明：本技术 基于电解的用于从Nd-Fe-B磁体废料中选择性回收稀土元素的方法 (Electrolysis-based method for selective recovery of rare earth elements from Nd-Fe-B magnet scrap ) 是由 许轩 萨索·斯特鲁姆 克里斯蒂娜·祖泽克·罗兹曼 于 2020-09-17 设计创作，主要内容包括：本发明涉及基于电解的用于从Nd–Fe–B磁体废料中选择性回收稀土元素的方法。本发明涉及一种用于从Nd-Fe-B磁体废料中回收稀土元素的方法。在该方法中,Nd-Fe-B磁体废料(2)在电化学反应器(1)中被阳极氧化,该电化学反应器(1)至少包括由所述Nd-Fe-B磁体废料(2)形成的阳极、阴极和含水液体电解质(5)。含水液体电解质(5)被选择成使得在阳极氧化期间,所述Nd-Fe-B磁体废料(2)在电解质(5)中浸出,并且Fe金属(7)沉积在阴极上。在所述阳极氧化步骤之后,向电解质(5)中添加Na-2SO-4(12),以使稀土元素沉淀。然后过滤电解质(5),以回收呈(RE,Na)(SO-4)-2复盐(13)形式的沉淀的稀土元素。(The invention relates to an electrolysis-based method for the selective recovery of rare earth elements from Nd-Fe-B magnet scrap. The invention relates to a method for recovering rare earth elements from Nd-Fe-B magnet waste. In the method, Nd-Fe-B magnet waste (2) is anodized in an electrochemical reactor (1), which electrochemical reactor (1) comprises at least an anode formed by the Nd-Fe-B magnet waste (2), a cathode and an aqueous liquid electrolyte (5). The aqueous liquid electrolyte (5) is selected such that during anodisation, the Nd-Fe-B magnet is spentThe material (2) is leached in the electrolyte (5) and Fe metal (7) is deposited on the cathode. Adding Na to the electrolyte (5) after the anodizing step 2 SO 4 (12) To precipitate the rare earth element. The electrolyte (5) is then filtered to recover (RE, Na) (SO) as 4 ) 2 Precipitated rare earth elements in the form of double salts (13).)