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1. WO2022001103 - METHOD FOR PYROENRICHMENT OF PLATINUM-GROUP METALS IN ALUMINUM-BASED WASTE CATALYST

Publication Number WO/2022/001103
Publication Date 06.01.2022
International Application No. PCT/CN2021/074719
International Filing Date 01.02.2021
IPC
C22B 11/02 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
11Obtaining noble metals
02by dry processes
C22B 7/00 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
7Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
CPC
C22B 11/026
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
11Obtaining noble metals
02by dry processes
021Recovery of noble metals from waste materials
026from spent catalysts
C22B 11/028
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
11Obtaining noble metals
02by dry processes
021Recovery of noble metals from waste materials
026from spent catalysts
028using solid sorbents, e.g. getters or catchment gauzes
C22B 7/009
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
7Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; ; Methods of a general interest or applied to the winning of more than two metals
009General processes for recovering metals or metallic compounds from spent catalysts
Y02P 10/20
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
10Technologies related to metal processing
20Recycling
Applicants
  • 北京科技大学 UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING [CN]/[CN]
Inventors
  • 丁云集 DING, Yunji
  • 张深根 ZHANG, Shengen
Agents
  • 北京市广友专利事务所有限责任公司 BEIJING GUANGYOU PATENT OFFICE CO.LTD.
Priority Data
202010835163.719.08.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD FOR PYROENRICHMENT OF PLATINUM-GROUP METALS IN ALUMINUM-BASED WASTE CATALYST
(FR) PROCÉDÉ DE PYROENRICHISSEMENT DE MÉTAUX DU GROUPE DU PLATINE DANS UN CATALYSEUR USÉ À BASE D'ALUMINIUM
(ZH) 一种火法富集铝基废催化剂中铂族金属的方法
Abstract
(EN) 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.
(FR) Procédé de pyroenrichissement de métal du groupe du platine (PGM) dans un catalyseur usé à base d'aluminium. Un système de laitier de CaO-Al203-Fe203-B203 est utilisé, et l'enrichissement à haut rendement d'un métal du groupe du platine est mis en oeuvre par séparation du fer du laitier, en empêchant un système de laitier de CaO-MgO-Al203-Si02 de générer un alliage insoluble de ferrosilicium métal du groupe du platine, ce qui permet d'améliorer le taux de récupération de métal du groupe du platine.
(ZH) 一种火法富集铝基废催化剂中铂族金属(PGMs)的方法,采用CaO-Al2O3-Fe2O3-B2O3渣系,经渣铁分离实现高效富集铂族金属,避免了CaO-MgO-Al2O3-SiO2渣系生成难溶铂族金属-硅铁合金,提高了铂族金属的回收率。
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