2026-06-29T09:33:21Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/1224242025-07-11T00:19:26Zcom_20.500.14352_14col_20.500.14352_15

Carbochlorination reduction process of Waelz ZnO: characterization of resulting ZnO-based oxides Alcaraz, Lorena Sotillo Buzarra, Belén Fernández Sánchez, Paloma López, Félix A. 538.9 ZnO ZnFe2O4 Carbochlorination reduction Purification Cathodoluminescence Física de materiales 2211 Física del Estado Sólido Zinc-based oxides are the main products obtained after the Waelz process, a metallurgical method used industrially for the treatment of electric arc furnaces. These oxides have certain impurities in their composition, which can be a disadvantage. Carbochlorination reduction reactions have proven to be useful in eliminating certain impurities (especially Pb) through thermal treatments. In this work, a method for purifying Waelz oxide through carbochlorination reduction reactions is presented. Several experiments have been conducted with the aim of obtaining samples with potential end applications. A deep characterization of the purified oxides has been performed by means of X-ray microanalysis, X-ray diffraction, Raman spectroscopy, and cathodoluminescence. These measurements indicate the presence of ZnO and ZnFe2O4 in different proportions, depending on the different amounts of reducing and chlorinating agents used. Comunidad de Madrid Ministerio de Ciencia e Innovación (España) Agencia Estatal de Investigación (España) European Commission Depto. de Física de Materiales Fac. de Ciencias Físicas TRUE pub 2025-07-10T17:56:40Z 2025-07-10T17:56:40Z 2025-03-28 journal article VoR https://hdl.handle.net/20.500.14352/122424 XXXX-XXXX 10.3390/cryst15040326 2073-4352 eng PR65/19- 22464 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CPP2022-009910/ES/Desarrollo de un hormigón neutro en emisiones de CO2, que utiliza CO2 gaseoso para la mineralización del hormigón fresco y 2D-Sílice Mesoporosa Dopada con Iones de Cobre para la absorción y almacenamiento de CO2 durante su vida útil./ Alcaraz, L.; Sotillo, B.; Fernández, P.; López, F.A. Carbochlorination Reduction Process of Waelz ZnO: Characterization of Resulting ZnO-Based Oxides. Crystals 2025, 15, 326, doi:10.3390/cryst15040326. Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ open access application/pdf MDPI