公开(公告)号：US08900543B2

公开(公告)日：2014-12-02

申请号：US13922380

申请日：2013-06-20

Applicant: Korea Institute of Science and Technology ,  Recytec. Inc.

Inventor： Hwa Young Lee ,  Joong Kee Lee ,  Jae Gyu Jee ,  Joon Chul Choi

IPC: C01B19/00

CPC classification number: C01B19/001 ,  C01B19/00 ,  Y02P20/129

Abstract: A method for separating tellurium includes separating and recovering tellurium (Te) from a dissolved solution containing the tellurium using a solvent extraction by an extractant, which contains one selected from a group consisting of tributyl phosphate (TBP), tris(2-ethylhexyl) phosphate (TEHP) and a combination thereof. The method may separate and recover the tellurium as a high-priced metallic element from a material, such as a Bi2Te3-based waste thermoelectric material, which contains not only the tellurium but also other metallic elements, simply and economically using a solvent extraction, whereby the tellurium with high yield and high purity can be separated, recovered and recycled.

Abstract translation: 用于分离碲的方法包括使用萃取剂的溶剂萃取从含有碲的溶解溶液中分离和回收碲（Te），所述萃取剂含有选自磷酸三丁酯（TBP），磷酸三（2-乙基己基）酯 （TEHP）及其组合。 该方法可以从诸如基于Bi2Te3的废热电材料的材料中分离和回收作为高价金属元素的碲，其不仅包含碲而且还包含其它金属元素，简单且经济地使用溶剂萃取，由此 具有高产率和高纯度的碲可以分离，回收和再循环。