Purpose Aluminum electrolytic capacitors (AECs) are a type of indispensable electronic components in modern electronic and electrical products. They are designed and manufactured by a series of product specifications to …
Removal of MR is a necessary step towards recovering tantalum from Ta capacitors and can be achieved by mechanical, thermal, and chemical methods. Methods that achieve complete removal of MR without loss of tantalum or other metals of value are of particular interest.
The global capacitor tantalum in the same year . By comparison, the total are based on ). Converted to a contained metal in concentrates. On average, tantalum pentoxide, as premium over concentrates over the last couple of years. manufacturing. concentrate. Among others, this may potentially provide implementation of such business plans.
In the 1970s, a single capacitor contained 600 – 800 mg tantalum. By now, this amount has decreased to less than 10 mg . Besides electronics tantalum capacitors and other components.
High increases of tantalum concentration in the waste stream can be achieved by initial sorting of WEEE and WPCB, the liberation of PCB (Schäfer and Schmidt, 2020), and simultaneous disassembly and sorting of EC.
Production of 1 kg capacitor-grade tantalum powder amounts to 163 kg CO 2 -Eq, 94 m 2 a and 2655 MJ-Eq (Ecoinvent, 2021a). For the tantalum recycling process to be economically viable, the returns from selling recycling products must exceed the expenses.
Economic aspects are related to supply and demand. The overall demand for tantalum increased steadily since the 1970s (Burt and Schwela, 2013) and future technologies will drive the demand further (Agrawal et al., 2021; Kolotzek et al., 2018; Marscheider-Weidemann et al., 2016).
Purpose Aluminum electrolytic capacitors (AECs) are a type of indispensable electronic components in modern electronic and electrical products. They are designed and manufactured by a series of product specifications to …
Due to scarcity, finite resources, and geopolitical constraints, tantalum recycling from capacitors is essential. In this study, sequential separation involving the removal of tightly bound epoxy resin and metallic …
To this end, the current work presents a methodologically robust lifecycle assessment (LCA) of two representative capacitors, namely Tantalum Electrolytic Capacitors (TECs) and Multilayer Ceramic Capacitors (MLCCs). This allows us to define and address environmental hotspots within the supply chain as well as sustainability issues that are ...
Two processes were evaluated: one based on conventional HF leaching used in the primary production of tantalum and niobium and one prospective HF-free process using NaOH. The results show that …
This study proposed an integrated and environment-friendly technology for recycling waste tantalum capacitors (WTCs) of WPCBs. Firstly, the WTCs were treated by argon pyrolysis to decompose mold ...
This study proposed an integrated and environment-friendly technology for recycling waste tantalum capacitors (WTCs) of WPCBs. Firstly, the WTCs were treated by …
To this end, the current work presents a methodologically robust lifecycle assessment (LCA) of two representative capacitors, namely Tantalum Electrolytic Capacitors …
Two processes were evaluated: one based on conventional HF leaching used in the primary production of tantalum and niobium and one prospective HF-free process using NaOH. The …
Tantalum primary production requires 3987 MJ and generates 262 kg CO 2-Eq per kg tantalum, while recycling of end-of-life Ta capacitors requires 564 MJ and generates 34 …
Downloadable (with restrictions)! High volumetric efficiency capacitors are found in all smart electronic devices, providing important applications within circuits, including flexible filter options, power storage and sensing, decoupling and circuit smoothing functions. Multilayer ceramic capacitors (MLCCs) hold the major market share but tantalum electrolytic capacitors (TECs) …
To this end, the current work presents a methodologically robust lifecycle assessment (LCA) of two representative capacitors, namely Tantalum Electrolytic Capacitors (TECs) and Multilayer Ceramic Capacitors (MLCCs). This allows us to define and address …
Two processes were evaluated: one based on conventional HF leaching used in the primary production of tantalum and niobium and one prospective HF-free process using NaOH. The results show that environmental impacts of Ta−Nb recycling can outperform primary production environmentally if the Ta and Nb content in the raw material is high enough.
Axial, radial and SMD tantalum capacitor types. Tantalum capacitors come in various styles to cater to diverse needs of today''s electronic designs. Common configurations include surface mount device (SMD) chips, stacked smd chips, radial, and axial designs. SMD tantalum capacitors are compact and suitable for automated assembly processes ...
Efficient assessment of the potential environmental impact on AECs with different specification parameters in the product family is essential to implement sustainable product development for the manufacturers. Methods. A cradle-to-gate life cycle assessment (LCA) was performed to evaluate the environmental impact of 38 types of AECs in a product family from …
Two processes were evaluated: one based on conventional HF leaching used in the primary production of tantalum and niobium and one prospective HF-free process using NaOH. The results show that environmental impacts of Ta–Nb recycling can outperform primary production environmentally if the Ta and Nb content in the raw material is high enough.
Due to scarcity, finite resources, and geopolitical constraints, tantalum recycling from capacitors is essential. In this study, sequential separation involving the removal of tightly bound epoxy resin and metallic impurities is carried out.
To date, no current research regarding the transition from TECS to MLCCs has been conducted from an entirely environmental viewpoint. This article identifies, quantifies, ranks and compares the environmental impacts of the MLCC and TEC supply chains using an integrated hybrid life cycle assessment framework.
available as a part of the life cycle of tantalum capacitors,9 including its recovery.10,11 The environmental impacts of tantalum and niobium recovery from hard metal applications have not been evaluated, and assessment of the impacts of the coproduction of both metals remains unavailable in public literature.
DOI: 10.1016/J.APENERGY.2018.03.067 Corpus ID: 116200951; Life cycle assessment and environmental profile evaluations of high volumetric efficiency capacitors @article{Smith2018LifeCA, title={Life cycle assessment and environmental profile evaluations of high volumetric efficiency capacitors}, author={Lucy Smith and Taofeeq Ibn-Mohammed and …
This study was based on the recovery of tantalum metal from capacitors. It was important to be able to identify and quantify all the elements present in the waste employed and in the fractions recovered. The chemical bonds present in the encapsulation resin of the capacitors was investigated using Fourier Transform Infra Red (FTIR) spectroscopy ...
Overview of sustainability aspects related to tantalum extraction (mining and processing) Global primary tantalum production from 1990 -2019. Data extracted from the BGR raw materials database....
To this end, the current work presents a methodologically robust lifecycle assessment (LCA) of two representative capacitors, namely Tantalum Electrolytic Capacitors (TECs) and Multilayer Ceramic Capacitors (MLCCs). This allows us to define and address environmental hotspots within the supply chain as well as sustainability issues that are ...
This study was based on the recovery of tantalum metal from capacitors. It was important to be able to identify and quantify all the elements present in the waste employed and in the fractions recovered. The chemical …
influences the environmental performances of the capacitor. LCA is an important tool to evaluate the environmental impacts of capacitors, especially during the design phase of the devices. The growing production of these components is reflected in a tangled network of suppliers and manufacturers [16], [17]. Research Method
To date, no current research regarding the transition from TECS to MLCCs has been conducted from an entirely environmental viewpoint. This article identifies, quantifies, ranks and …
Tantalum primary production requires 3987 MJ and generates 262 kg CO 2-Eq per kg tantalum, while recycling of end-of-life Ta capacitors requires 564 MJ and generates 34 kg CO 2-Eq per kg tantalum (Schäfer and Schmidt, 2020), highlighting the environmental benefits and importance of tantalum recycling.
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