Title:
PROCESS FOR RECOVERING PLATINUM-GROUP METAL FROM WASTE CATALYST BY USING BIOCYANIDE AND IONIC LIQUID
Document Type and Number:
WIPO Patent Application WO/2024/058441
Kind Code:
A1
Abstract:
Disclosed in the content of the present disclosure is a process for recovering a platinum-group metal with a high yield by using an organic phosphorus-based ionic liquid as an extracting agent, following bio-leaching of the platinum-group metal contained in a waste catalyst by using biocyanide produced from microorganisms.
Inventors:
KIM HYUN JUNG (KR)
SADIA ILYAS (KR)
SADIA ILYAS (KR)
Application Number:
PCT/KR2023/012145
Publication Date:
March 21, 2024
Filing Date:
August 17, 2023
Export Citation:
Assignee:
IUCF HYU (KR)
International Classes:
C22B11/08; C22B3/18; C22B11/00
Foreign References:
| KR100781670B1 | 2007-12-03 | |||
| JP2012532989A | 2012-12-20 | |||
| KR102542074B1 | 2023-06-13 |
Other References:
ILYAS SADIA; KIM HYUNJUNG: "Recovery of Platinum-Group Metals from an Unconventional Source of Catalytic Converter Using Pressure Cyanide Leaching and Ionic Liquid Extraction", JOM: JOURNAL OF METALS, SPRINGER NEW YORK LLC, UNITED STATES, vol. 74, no. 3, 12 January 2022 (2022-01-12), United States , pages 1020 - 1026, XP037702715, ISSN: 1047-4838, DOI: 10.1007/s11837-021-05119-6
CHEN MUHAN, WU SHENGJIE, HUANG ZHANGJIE, CHEN JING, CHEN MIN JUN: "Separation and recovery of Pd(II) and Pt(II) from cyanide liquors of Pd-Pt flotation concentrate via solvent extraction : Separation and recovery of Pd(II) and Pt(II) from cyanide", JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, WILEY, HOBOKEN, USA, vol. 92, no. 7, 1 July 2017 (2017-07-01), Hoboken, USA, pages 1699 - 1709, XP093146518, ISSN: 0268-2575, DOI: 10.1002/jctb.5168
ILYAS SADIA, SRIVASTAVA RAJIV RANJAN, KIM HYUNJUNG: "Mobilization of platinum and palladium from exhausted catalytic converters using bio-cyanide and an ionic-liquid as mass transport carriers", GREEN CHEMISTRY, ROYAL SOCIETY OF CHEMISTRY, GB, vol. 24, no. 13, 4 July 2022 (2022-07-04), GB , pages 5204 - 5218, XP093146519, ISSN: 1463-9262, DOI: 10.1039/D2GC00874B
CHEN MUHAN, WU SHENGJIE, HUANG ZHANGJIE, CHEN JING, CHEN MIN JUN: "Separation and recovery of Pd(II) and Pt(II) from cyanide liquors of Pd-Pt flotation concentrate via solvent extraction : Separation and recovery of Pd(II) and Pt(II) from cyanide", JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, WILEY, HOBOKEN, USA, vol. 92, no. 7, 1 July 2017 (2017-07-01), Hoboken, USA, pages 1699 - 1709, XP093146518, ISSN: 0268-2575, DOI: 10.1002/jctb.5168
ILYAS SADIA, SRIVASTAVA RAJIV RANJAN, KIM HYUNJUNG: "Mobilization of platinum and palladium from exhausted catalytic converters using bio-cyanide and an ionic-liquid as mass transport carriers", GREEN CHEMISTRY, ROYAL SOCIETY OF CHEMISTRY, GB, vol. 24, no. 13, 4 July 2022 (2022-07-04), GB , pages 5204 - 5218, XP093146519, ISSN: 1463-9262, DOI: 10.1039/D2GC00874B
Attorney, Agent or Firm:
DODAM IP LAW FIRM (KR)
Download PDF: