Results 11 to 20 of about 1,032,779 (227)

Dissolution of Ceramic Monolith of Spent Catalytic Converters by Using Hydrometallurgical Methods / Rozpuszczanie Monolitu Ceramicznego Zużytych Katalizatorów Na Drodze Hydrometalurgicznej [PDF]

Archives of Metallurgy and Materials, 2015
Catalytic converters contain the catalytic substance in their structure, which is a mixture of Platinum Group Metals (PGMs): platinum, palladium and rhodium.
Willner J., Fornalczyk A.
doaj   +3 more sources

Dissolution of Metal Supported Spent Auto Catalysts in Acids [PDF]

Archives of Metallurgy and Materials, 2016
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 ...
Fornalczyk A., Kraszewski M., Willner J., Kaduková J., Mrážiková A., Marcinčáková R., Velgosová O.   +6 more
doaj   +3 more sources

Oxidative leaching process with cupric ion in hydrochloric acid media for recovery of Pd and Rh from spent catalytic converters [PDF]

Journal of Hazardous Materials, 2014
The recycling of platinum-group metals from wastes such as autocatalytic converters is getting growing attention due to the scarcity of these precious metals and the market pressure originated by increase of demand in current and emerging applications. Hydrometallurgical treatment of such wastes is an alternative way to the most usual pyrometallurgical
Maria C. Costa, Carlos A Nogueira, Ana Paula Paiva   +2 more
exaly   +4 more sources

Biotechnological valorisation of Spent Automotive Catalytic Converters: Marine microorganisms in PGE leaching and recovery

Journal of Environmental Chemical Engineering
The recovery of Platinum Group Elements (PGE) from secondary sources, such as Spent Automotive Catalytic Converters (SACC), is crucial for sustainable resource management and reducing environmental impact. Marine microorganisms offer many promising biotechnological applications, but their use in PGE bioleaching and biorecovery has been poorly explored.
Vitale L., Tedesco P., Galasso C., Vitale G. A., Varola G., Della Sala G., Palma Esposito F., Balzano S., Ghani J., De Pascale D., Dinelli E., Meisel T. C., Coppola D., Funari V.   +13 more
openaire   +3 more sources

Catalytic Performance of Iron-Based Oxygen Carriers Mixed with Converter Steel Slags for Hydrogen Production in Chemical Looping Gasification of Brewers’ Spent Grains

Energies
Iron-based oxygen carriers (OCs) have received much attention due to their low costs, high mechanical strengths and high-temperature stabilities in the chemical looping gasification (CLG) of biomass, but their chemical reactivity is very ordinary.
Miao Yuan, Huawei Jiang, Xiangli Zuo, Cuiping Wang, Yanhui Li, Hairui Yang   +5 more
exaly   +3 more sources

Selective Adsorptive Recovery of Platinum from Spent Catalytic Converter

Chemical Engineering Transactions, 2022
Ethylene glycol dimethacrylate (EGDMA) – dithiadiamide (DTDA) copolymer was synthesized by condensation reaction between monomeric mercaptoacetamide and ?-dibromoalkanes. This previously designed DTDA was complexed with Pt2+ before direct copolymerization with EGDMA. Pt2+-template was eluted with dilute HCl.
Limjuco Lawrence A., Ocon Joey D.
openaire   +2 more sources

Catalytic converters: Enhancing Green Chemistry and Their Technological Implications [PDF]

, 2023
This study looks into how important catalytic converters are to the development of green chemistry and how that affects the sustainability of the environment.
Mohammad, Farhan
core   +1 more source

Recovery of platinum group metals from spent automotive catalysts: A review

Cleaner Engineering and Technology, 2021
In the last decades, a worldwide investment in the recovery or substitution of platinum group metals (PGMs) has been financed. PGMs have been classified as critical raw materials (CRMs), thus a circular economy model should be implemented for their ...
Iakovos Yakoumis, Marianna Panou, Anastasia Maria Moschovi, Dimitris Panias   +3 more
doaj   +1 more source

Recovery of catalytic metals from leaching solutions of spent automotive catalytic converters using plant extracts

Clean Technologies and Environmental Policy, 2023
AbstractThis study investigates the potential of hydroalcoholic extracts of Cistus ladanifer L., Erica Andevalensis and Rubus idaeus L. as a green method for the recovery of platinum group metals (PGMs) from both synthetic unimetallic solutions and multimetallic solutions obtained from the leaching of two different spent automotive catalytic converters
Nobahar, Amir, Carlier, Jorge, Costa, Maria Clara   +2 more
openaire   +2 more sources

Influence of H2O2 and O3 on PGM Extraction from Used Car Catalysts [PDF]

Archives of Metallurgy and Materials, 2018
Catalytic converters contain the catalytic substance in their structure, which is a mixture of Platinum Group Metals (PGMs). The prices of these metals and a growing demand for them in the market, make it necessary to recycle spent catalytic converters ...
A. Fornalczyk, B. Gajda, J. Willner, J. Sedlakova-Kadukova   +3 more
doaj   +1 more source