Title:
METHOD FOR PYROENRICHMENT OF PLATINUM-GROUP METALS IN ALUMINUM-BASED WASTE CATALYST
Document Type and Number:
WIPO Patent Application WO/2022/001103
Kind Code:
A1
Abstract:
A method for pyroenrichment of platinum-group metal (PGMs) in an aluminum-based waste catalyst. A CaO-Al203-Fe203-B203 slag system is used, and high-efficiency enrichment of a platinum-group metal is implemented by means of slag iron separation, preventing a CaO-MgO-Al203-Si02 slag system from generating an insoluble platinum-group metal-ferrosilicon alloy, improving the rate of platinum-group metal recovery.
Inventors:
DING YUNJI (CN)
ZHANG SHENGEN (CN)
ZHANG SHENGEN (CN)
Application Number:
PCT/CN2021/074719
Publication Date:
January 06, 2022
Filing Date:
February 01, 2021
Export Citation:
Assignee:
UNIV BEIJING SCIENCE & TECHNOLOGY (CN)
International Classes:
C22B11/02; C22B7/00
Foreign References:
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| CN103014352A | 2013-04-03 | |||
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| RU2360984C1 | 2009-07-10 | |||
| CN201810979537A | 2018-08-27 | |||
| CN201910796194A | 2019-08-27 | |||
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| CN201810842524A | 2018-07-27 | |||
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Other References:
KURCHA, YONGWUCHERERIA, LIJOKAU, LEWIS: "Plasma Smelting Technology concentration of Platinum Group Metals Process [J", NOBLE METALS, vol. 37, no. 01, 2016, pages 1 - 5
See also references of EP 3971310A4
See also references of EP 3971310A4
Attorney, Agent or Firm:
BEIJING GUANGYOU PATENT OFFICE CO.LTD. (CN)
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