Strategies for the Upgrade of a TBZC Product (Tetra Basic Zinc Chloride) by Selective Removal of the Impurity Chlorine
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TMS 2022: 151st Annual Meeting and Exhibition Supplemental Proceedings. Vol. 151 2022. p. 95-108 (Minerals, Metals and Materials Series).
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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TY - GEN
T1 - Strategies for the Upgrade of a TBZC Product (Tetra Basic Zinc Chloride) by Selective Removal of the Impurity Chlorine
AU - Höber, Lukas
AU - Mohamed Abdelmonnem Ahmed, Rana
AU - Hofbauer, Thomas
AU - Steinlechner, Stefan
N1 - Publisher Copyright: © 2022, The Minerals, Metals & Materials Society.
PY - 2022/2/7
Y1 - 2022/2/7
N2 - 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.
AB - 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.
KW - Chlorine removal
KW - Hydrometallurgical chlorine extraction
KW - Pyrometallurgical chlorine extraction
KW - Tetra basic zinc chloride
UR - http://www.scopus.com/inward/record.url?scp=85125251851&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-92381-5_10
DO - 10.1007/978-3-030-92381-5_10
M3 - Conference contribution
AN - SCOPUS:85125251851
SN - 978-3-030-92380-8
VL - 151
T3 - Minerals, Metals and Materials Series
SP - 95
EP - 108
BT - TMS 2022
T2 - 151st Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2022
Y2 - 27 February 2022 through 3 March 2022
ER -
