Evolution of Solid Products Formed During the Cathodic Decomposition of Chalcopyrite at Different Energetic Conditions in Acetic Acid
This paper presents a systematic analysis of the solid products formed during the cathodic decomposition of chalcopyrite using the acetic acid system. The reduction of chalcopyrite was assessed using different electrochemical and surface characterization techniques. The effect of multiple cathodic p...
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2025-06-01
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| author | Laura Denisse Jasso-Recio Juan Carlos Fuentes-Aceituno Roberto Pérez-Garibay Aldo Valentín Enríquez-Farías Alfredo Flores-Valdés Jesús Torres-Torres |
| author_facet | Laura Denisse Jasso-Recio Juan Carlos Fuentes-Aceituno Roberto Pérez-Garibay Aldo Valentín Enríquez-Farías Alfredo Flores-Valdés Jesús Torres-Torres |
| author_sort | Laura Denisse Jasso-Recio |
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| description | This paper presents a systematic analysis of the solid products formed during the cathodic decomposition of chalcopyrite using the acetic acid system. The reduction of chalcopyrite was assessed using different electrochemical and surface characterization techniques. The effect of multiple cathodic polarizations of chalcopyrite immersed in acetic acid was evaluated on the formation of less refractory copper species through the interaction of chalcopyrite with monoatomic hydrogen. The reduction products obtained were characterized by the FESEM/EDS techniques. The results revealed that the iron content in the chalcopyrite lattice was continuously decreased and released into the acetic acid solution when the polarization cycles were increased from 1 to 11 starting from OCP to −2.2 V vs. SHE. The chemical analyses revealed that iron released into the solution corresponds to 0.085 and 1.95 mg/L for 1 and 11 cycles, respectively. The open circuit potential (OCP) measurements of the solid products were shifted to more cathodic potentials than that of chalcopyrite, confirming the possibility to form less refractory species in this weak organic acid. Finally, the FESEM-EDS and XRD analyses showed that chalcopyrite refractoriness decreased, producing Cu, Cu<sub>2</sub>S, CuS, CuO, and C<sub>4</sub>H<sub>6</sub>CuO<sub>4</sub>H<sub>2</sub>O species depending on the applied energetic condition. |
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| institution | Kabale University |
| issn | 2075-4701 |
| language | English |
| publishDate | 2025-06-01 |
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| series | Metals |
| spelling | doaj-art-7cbf1b20dd3141cebecf9c2dd34be4e52025-08-20T03:27:37ZengMDPI AGMetals2075-47012025-06-0115667210.3390/met15060672Evolution of Solid Products Formed During the Cathodic Decomposition of Chalcopyrite at Different Energetic Conditions in Acetic AcidLaura Denisse Jasso-Recio0Juan Carlos Fuentes-Aceituno1Roberto Pérez-Garibay2Aldo Valentín Enríquez-Farías3Alfredo Flores-Valdés4Jesús Torres-Torres5Centro de Investigación y de Estudios Avanzados del IPN Unidad Saltillo, Av. Industria Metalúrgica #1062, Parque Industrial,Ramos Arizpe, Ramos Arizpe 25900, Coahuila, MexicoCentro de Investigación y de Estudios Avanzados del IPN Unidad Saltillo, Av. Industria Metalúrgica #1062, Parque Industrial,Ramos Arizpe, Ramos Arizpe 25900, Coahuila, MexicoCentro de Investigación y de Estudios Avanzados del IPN Unidad Saltillo, Av. Industria Metalúrgica #1062, Parque Industrial,Ramos Arizpe, Ramos Arizpe 25900, Coahuila, MexicoCentro de Investigación y de Estudios Avanzados del IPN Unidad Saltillo, Av. Industria Metalúrgica #1062, Parque Industrial,Ramos Arizpe, Ramos Arizpe 25900, Coahuila, MexicoCentro de Investigación y de Estudios Avanzados del IPN Unidad Saltillo, Av. Industria Metalúrgica #1062, Parque Industrial,Ramos Arizpe, Ramos Arizpe 25900, Coahuila, MexicoCentro de Investigación y de Estudios Avanzados del IPN Unidad Saltillo, Av. Industria Metalúrgica #1062, Parque Industrial,Ramos Arizpe, Ramos Arizpe 25900, Coahuila, MexicoThis paper presents a systematic analysis of the solid products formed during the cathodic decomposition of chalcopyrite using the acetic acid system. The reduction of chalcopyrite was assessed using different electrochemical and surface characterization techniques. The effect of multiple cathodic polarizations of chalcopyrite immersed in acetic acid was evaluated on the formation of less refractory copper species through the interaction of chalcopyrite with monoatomic hydrogen. The reduction products obtained were characterized by the FESEM/EDS techniques. The results revealed that the iron content in the chalcopyrite lattice was continuously decreased and released into the acetic acid solution when the polarization cycles were increased from 1 to 11 starting from OCP to −2.2 V vs. SHE. The chemical analyses revealed that iron released into the solution corresponds to 0.085 and 1.95 mg/L for 1 and 11 cycles, respectively. The open circuit potential (OCP) measurements of the solid products were shifted to more cathodic potentials than that of chalcopyrite, confirming the possibility to form less refractory species in this weak organic acid. Finally, the FESEM-EDS and XRD analyses showed that chalcopyrite refractoriness decreased, producing Cu, Cu<sub>2</sub>S, CuS, CuO, and C<sub>4</sub>H<sub>6</sub>CuO<sub>4</sub>H<sub>2</sub>O species depending on the applied energetic condition.https://www.mdpi.com/2075-4701/15/6/672monoatomic hydrogencopperelectro-assisted reductionchalcopyriteacetic acidcopper acetate |
| spellingShingle | Laura Denisse Jasso-Recio Juan Carlos Fuentes-Aceituno Roberto Pérez-Garibay Aldo Valentín Enríquez-Farías Alfredo Flores-Valdés Jesús Torres-Torres Evolution of Solid Products Formed During the Cathodic Decomposition of Chalcopyrite at Different Energetic Conditions in Acetic Acid Metals monoatomic hydrogen copper electro-assisted reduction chalcopyrite acetic acid copper acetate |
| title | Evolution of Solid Products Formed During the Cathodic Decomposition of Chalcopyrite at Different Energetic Conditions in Acetic Acid |
| title_full | Evolution of Solid Products Formed During the Cathodic Decomposition of Chalcopyrite at Different Energetic Conditions in Acetic Acid |
| title_fullStr | Evolution of Solid Products Formed During the Cathodic Decomposition of Chalcopyrite at Different Energetic Conditions in Acetic Acid |
| title_full_unstemmed | Evolution of Solid Products Formed During the Cathodic Decomposition of Chalcopyrite at Different Energetic Conditions in Acetic Acid |
| title_short | Evolution of Solid Products Formed During the Cathodic Decomposition of Chalcopyrite at Different Energetic Conditions in Acetic Acid |
| title_sort | evolution of solid products formed during the cathodic decomposition of chalcopyrite at different energetic conditions in acetic acid |
| topic | monoatomic hydrogen copper electro-assisted reduction chalcopyrite acetic acid copper acetate |
| url | https://www.mdpi.com/2075-4701/15/6/672 |
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