Invention Grant
- Patent Title: Method for recovering metal and kit for recovery of metal for use in the same
- Patent Title (中): 金属回收方法及用于回收金属的试剂盒
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Application No.: US13437279Application Date: 2012-04-02
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Publication No.: US08765480B2Publication Date: 2014-07-01
- Inventor: Yuka Shimomura
- Applicant: Yuka Shimomura
- Applicant Address: JP Kyoto
- Assignee: ARKRAY, Inc.
- Current Assignee: ARKRAY, Inc.
- Current Assignee Address: JP Kyoto
- Agency: Morgan, Lewis & Bockius LLP
- Priority: JP2011-083024 20110404; JP2011-136921 20110621; JP2011-207907 20110922; JP2011-207908 20110922; JP2012-060102 20120316
- Main IPC: G01N33/20
- IPC: G01N33/20 ; G01N15/06 ; G01N33/00 ; C07C245/00 ; C07C337/00 ; C22B3/00 ; C01G55/00 ; C22B11/00 ; B01D11/00 ; B01F1/00

Abstract:
A method for recovering a metal, capable of recovering a metal easily without requiring the use of an organic medium, is provided. A first complex between a first chelating agent and a metal present in a sample is formed in a first mixture prepared by mixing the first chelating agent and the sample. Then, the first complex is recovered from the first mixture, and a second complex between the metal derived from the first complex and a second chelating agent is formed in a second mixture prepared by mixing the first complex and an aqueous solution of the second chelating agent. The aqueous solution is under the pH conditions where the first chelating agent can be insoluble in the aqueous solution. Then, a liquid fraction containing the second complex is recovered from the second mixture. Thus, the metal can be recovered.
Public/Granted literature
- US20120251390A1 Method for Recovering Metal and Kit for Recovery of Metal for Use in the Same Public/Granted day:2012-10-04
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