| Title | Platinum Recovery Techniques for a Circular Economy |
|---|---|
| ID_Doc | 4301 |
| Authors | Granados-Fernández, R; Montiel, MA; Díaz-Abad, S; Rodrigo, MA; Lobato, J |
| Title | Platinum Recovery Techniques for a Circular Economy |
| Year | 2021 |
| Published | Catalysts, 11, 8 |
| Abstract | Platinum and other metals are very scarce materials widely used in the energy and transportation sector among other sectors. Obtaining Platinum is becoming more difficult due to its scarcity on earth and because of the high amount of energy and water used for its extraction. In this regard, the recycling of platinum is necessary for sustainable technologies and for reaching a circular economy towards this expensive and rare metal. Conventional methods for platinum recycling make use of enormous amounts of energy for its recovery, which makes them not very attractive for industry implementation. Furthermore, these processes generate very toxic liquid streams and gas wastes that must be further treated, which do not meet the green environmental point of view of platinum recycling. Consequently, new advanced technologies are arising aiming to reach very high platinum recovery rates while being environmentally friendly and making a huge reduction of energy use compared with the conventional methods. In this review, conventional platinum recovery methods are summarized showing their limitations. Furthermore, new and promising approaches for platinum recovery are reviewed to shed light on about new and greener ways for a platinum circular economy. |
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