Strategies for the Upgrade of a TBZC Product (Tetra Basic Zinc Chloride) by Selective Removal of the Impurity Chlorine

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in Konferenzband

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.
OriginalspracheEnglisch
TitelTMS 2022
Untertitel151st Annual Meeting and Exhibition Supplemental Proceedings
Herausgeber (Verlag)Springer Cham
Seiten95-108
Seitenumfang14
Band151
ISBN (elektronisch)978-3-030-92381-5
ISBN (Print)978-3-030-92380-8
DOIs
PublikationsstatusVeröffentlicht - 7 Feb. 2022
Veranstaltung151st Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2022 - Anaheim, USA / Vereinigte Staaten
Dauer: 27 Feb. 20223 März 2022

Publikationsreihe

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (elektronisch)2367-1696

Konferenz

Konferenz151st Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2022
Land/GebietUSA / Vereinigte Staaten
OrtAnaheim
Zeitraum27/02/223/03/22

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.

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