Article: Perspective on pH adjustment in hydrometallurgical recycling of valuable metals from waste.
2023 Volume 11, Page(s) 1177173
Abstract: pH adjustment was considered a simple step in the hydrometallurgy process, but its complicated operation was ignored in the past. In some industrial applications, the leachate pH was slowly adjusted by a diluted alkaline solution, with the defects of ... ...
| Abstract | pH adjustment was considered a simple step in the hydrometallurgy process, but its complicated operation was ignored in the past. In some industrial applications, the leachate pH was slowly adjusted by a diluted alkaline solution, with the defects of doubling the leachate volume and causing droplet hydrolysis/coagulation. Up to date, promising routes have been developed for rapid pH adjustment, especially in sealed high-temperature/pressure vessels. New routes emerged in some redox/decomposition reactions of nitrate/urea and organics. Such reactions did not start and/or were slow at room temperature but started spontaneously at high temperatures to generate/consume free H |
|---|---|
| Language | English |
| Publishing date | 2023-05-18 |
| Publishing country | Switzerland |
| Document type | Journal Article |
| ZDB-ID | 2711776-5 |
| ISSN | 2296-2646 |
| ISSN | 2296-2646 |
| DOI | 10.3389/fchem.2023.1177173 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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