Title:
NOBLE METAL ADSORBENT, NOBLE METAL RECOVERY METHOD, AND NOBLE METAL ADSORBENT RECYLING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/202738
Kind Code:
A1
Abstract:
Provided are a noble metal adsorbent which enables easy recovery of a noble metal while achieving a high adsorption capacity with respect to a noble metal, a noble metal recovery method, and a noble metal adsorbent recycling method. A noble metal adsorbent according to the present invention contains a metallic sulfide. The metallic sulfide is constituted by, for example, molybdenum disulfide particles. In a noble metal recovery method according to the present invention, the noble metal adsorbent is caused to adsorb a noble metal and then the noble metal adsorbent is heated and volatilized in the presence of oxygen, so that the noble metal is recovered.
Inventors:
MIZUTA SEIJI (JP)
YUAN JIANJUN (JP)
YUAN JIANJUN (JP)
Application Number:
PCT/JP2022/012954
Publication Date:
September 29, 2022
Filing Date:
March 22, 2022
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
B01J20/02; B01J20/28; B01J20/34; C02F1/28; C22B3/06; C22B3/24; C22B11/00; C22B34/34
Domestic Patent References:
| WO2021060377A1 | 2021-04-01 | |||
| WO2021059325A1 | 2021-04-01 |
Foreign References:
| CN109706315A | 2019-05-03 | |||
| JPS4943472B1 | 1974-11-21 | |||
| CN105753053A | 2016-07-13 | |||
| JP2021050484A | 2021-04-01 |
Attorney, Agent or Firm:
NISHIZAWA Kazuyoshi et al. (JP)
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