Invention Grant
- Patent Title: Method for separating rare earth metals
- Patent Title (中): 分离稀土金属的方法
-
Application No.: US497871Application Date: 1983-05-25
-
Publication No.: US4514367APublication Date: 1985-04-30
- Inventor: Tadao Asami , Tetsuro Suehiro , Hisao Ichijo , Aizo Yamauchi , Shigeo Ogawa , Mitsuo Suzuki , Mitsutaka Uzumaki
- Applicant: Tadao Asami , Tetsuro Suehiro , Hisao Ichijo , Aizo Yamauchi , Shigeo Ogawa , Mitsuo Suzuki , Mitsutaka Uzumaki
- Applicant Address: JPX all of JPX all of JPX all of
- Assignee: Agency of Industrial Science & Technology,Nitivy Co., Ltd.,Seimi Chemical Co., Ltd.
- Current Assignee: Agency of Industrial Science & Technology,Nitivy Co., Ltd.,Seimi Chemical Co., Ltd.
- Current Assignee Address: JPX all of JPX all of JPX all of
- Main IPC: B01J39/04
- IPC: B01J39/04 ; B01J47/12 ; C01F17/00 ; C22B59/00
Abstract:
Rare earth metals are adsorbed on an ion exchange fiber comprising an ion exchanger having a strong cation exchange group and a weak cation exchange group, and the adsorbed metals are fractionally eluted with an aqueous solution of a chelating agent, whereby the respective rare earth metals can be separated at high efficiency in a short time. According to this method, elution can be accomplished at an elution rate of 5.0 or above in terms of space velocity.
Public/Granted literature
- US5092556A Flag support for sprinkler systems on golf courses Public/Granted day:1992-03-03
Information query
