Title:
METHOD AND DEVICE FOR RECOVERING CATALYTIC METAL FROM AQUEOUS SOLUTION INCLUDING CATALYTIC METAL COPRECIPITATED WITH TIN
Document Type and Number:
WIPO Patent Application WO/2020/183946
Kind Code:
A1
Abstract:
A method for recovering a catalytic metal from an aqueous solution including a catalytic metal, the method characterized by retaining an aqueous solution including a catalytic metal co-precipitated with tin to elute the catalytic metal, and separating and recovering the eluted catalytic metal. The purpose of the present invention is to provide a method for recovering a catalytic metal easily from an aqueous solution including the catalytic metal, such as palladium, co-precipitated with tin. As a result, the catalytic metal (noble metal) in discharged (discarded) wash water can be recovered. The present invention is useful in the field of recycling for recovering valuable metals from wastewater that contains valuable metals and was discharged in an electroless plating process.
Inventors:
YOSHII DAISUKE (JP)
Application Number:
PCT/JP2020/002906
Publication Date:
September 17, 2020
Filing Date:
January 28, 2020
Export Citation:
Assignee:
MATSUDA SANGYO COMPANY LTD (JP)
International Classes:
B01J38/00; B01J38/60
Foreign References:
| US20020119085A1 | 2002-08-29 | |||
| JP2002326821A | 2002-11-12 | |||
| JP2001303148A | 2001-10-31 | |||
| JP2001131652A | 2001-05-15 | |||
| JPS6411928A | 1989-01-17 | |||
| JP2003147448A | 2003-05-21 | |||
| CN107267762A | 2017-10-20 | |||
| JP2006061764A | 2006-03-09 | |||
| JP2018525220A | 2018-09-06 |
Attorney, Agent or Firm:
OGOSHI Kazuteru et al. (JP)
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