Abstract
When recycling materials containing zinc in hydrochloric acid processes, the precipitation of zinc can lead to the formation of various compounds which can be assigned to the group of zinc hydroxide chlorides. This paper compares different approaches for the selective removal of chlorine from tetra basic zinc chloride to obtain a cleaned zinc product. The removal of chlorine via soda leaching at atmospheric conditions as well as under overpressure in an autoclave was investigated. Furthermore, concepts were considered in which the chlorine can be evaporated as a compound and thus separated via selective temperature and atmospheric control. Thereby, a focus is on the simulation of pyrohydrolysis and clinkering for the separation of chlorine via gaseous compounds whereby zinc remains and can be brought to further processing. The simulations with multivariant parameters are carried out using the thermochemical calculation software package FactSage.
Originalsprache | Englisch |
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Titel | TMS 2022 |
Untertitel | 151st Annual Meeting and Exhibition Supplemental Proceedings |
Herausgeber (Verlag) | Springer Cham |
Seiten | 95-108 |
Seitenumfang | 14 |
Band | 151 |
ISBN (elektronisch) | 978-3-030-92381-5 |
ISBN (Print) | 978-3-030-92380-8 |
DOIs | |
Publikationsstatus | Veröffentlicht - 7 Feb. 2022 |
Veranstaltung | 151st Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2022 - Anaheim, USA / Vereinigte Staaten Dauer: 27 Feb. 2022 → 3 März 2022 |
Publikationsreihe
Name | Minerals, Metals and Materials Series |
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ISSN (Print) | 2367-1181 |
ISSN (elektronisch) | 2367-1696 |
Konferenz
Konferenz | 151st Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2022 |
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Land/Gebiet | USA / Vereinigte Staaten |
Ort | Anaheim |
Zeitraum | 27/02/22 → 3/03/22 |
Bibliographische Notiz
Funding Information:This work was funded by the Christian Doppler Research Association, the Austrian Federal Ministry for Digital and Economic Affairs, and the National Foundation for Research, Technology, and Development.
Publisher Copyright:
© 2022, The Minerals, Metals & Materials Society.