2016
DOI: 10.1515/amm-2016-0043
|View full text |Cite
|
Sign up to set email alerts
|

Dissolution of Metal Supported Spent Auto Catalysts in Acids

Abstract: Metal supported auto catalysts, have been used in sports and racing cars initially, but nowadays their application systematically increases. In Metal Substrate (supported) Converters (MSC), catalytic functions are performed by the Platinum Group Metals (PGM): Pt, Pd, Rh, similarly to the catalysts on ceramic carriers. The contents of these metals make that spent catalytic converters are valuable source of precious metals. All over the world there are many methods for the metals recovery from the ceramic carrie… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

0
8
0

Year Published

2018
2018
2022
2022

Publication Types

Select...
7

Relationship

0
7

Authors

Journals

citations
Cited by 14 publications
(8 citation statements)
references
References 4 publications
0
8
0
Order By: Relevance
“…However, the presence of the copper(II) salt significantly enhances the leaching of non-valuable metals (even up to 55 and 40 mg/dm 3 of Mg(II) and Zn(II), respectively). Leaching of chemically resistant PGM involves not only precursors (AlCl3 or CuCl2) but also oxidants such as H2O2 (Jimenez de Aberasturi et al, 2011;Jha et al, 2013;Fornalczyk et al, 2016). Eventually, the addition of H2O2 as an oxidant to the leaching solutions containing CuCl2 or AlCl3 in HCl caused leaching of a small amount of Pt(IV) and Rh(III) (Fig.…”
Section: The Final Compositions Of the Leaching Solutionsmentioning
confidence: 99%
See 1 more Smart Citation
“…However, the presence of the copper(II) salt significantly enhances the leaching of non-valuable metals (even up to 55 and 40 mg/dm 3 of Mg(II) and Zn(II), respectively). Leaching of chemically resistant PGM involves not only precursors (AlCl3 or CuCl2) but also oxidants such as H2O2 (Jimenez de Aberasturi et al, 2011;Jha et al, 2013;Fornalczyk et al, 2016). Eventually, the addition of H2O2 as an oxidant to the leaching solutions containing CuCl2 or AlCl3 in HCl caused leaching of a small amount of Pt(IV) and Rh(III) (Fig.…”
Section: The Final Compositions Of the Leaching Solutionsmentioning
confidence: 99%
“…These operations let concentrate PGMs or precipitate their oxides and, thus, recycle these valuable metals. Efficient leaching of PGMs needs oxidative conditions, thus hydrogen peroxide or aqua regia are applied as the leaching solutions (Jimenez de Aberasturi et al, 2011;Fornalczyk et al, 2016;Lu et al, 2020). Some authors have proposed the use of copper salt as an oxidizing agent to recover palladium and rhodium from spent catalysts (Nogueira et al, 2014).…”
Section: Introductionmentioning
confidence: 99%
“…The digestion process carried out in an open vessel under reflux conditions, or in a closed vessel assisted by microwave radiation, involving the use of HNO 3 , HCl, HBF 4 , HF H 2 O 2, and their mixtures, and are described in many publications [19,[34][35][36][37][38]. The efficiency of a digestion protocol for solid waste is dependent on the waste matrix, the chemical form of the metals in the waste matrix, and the acids used in the digestion process [33].…”
Section: Digestion Methods Of Electronic Componentsmentioning
confidence: 99%
“…Contamination with metals is considered a major environmental issue and threat to human health. Among the many metals, Tl, Hg, Cr (mainly hexavalent chromium) Cd, and Pb are the most harmful, are very hazardous to humans, bio-accumulate and have carcinogenic properties [35][36][37]. The maximum values of the concentration of these harmful substances in EEE (electrical and electronic equipment) are clearly defined in the EU Restriction of Hazardous Substances RoHS Directive [47], in which the main goal is to limit the use of certain hazardous substances in electrical and electronic equipment.…”
Section: Total Metal Contentsmentioning
confidence: 99%
“…12 Due to this, hydrometallurgical recycling has attracted researchers. 13 Usually, mineral acids of high concentrations including aqua regia and several additives (i.e., H 2 O 2 and Al/Cu chloride) have been employed for PGM dissolution, 1 , 11 , 14 16 albeit the high reagent consumption, the generation of highly acidic effluents, the instability of PGM extraction, and the low recovery of Rh have been found to be unsatisfactory. 17 Recently, biotechnology has emerged as a good alternative with a low carbon footprint in extractive metallurgy from ores; 18 , 19 however, it is still in the infancy stage for PGM recycling from refractory materials like autocatalytic converters as they are hard-to-leach noble metals.…”
Section: Introductionmentioning
confidence: 99%