文献类型：会议论文

英文题名：Kinetics Study on Microwave Alkaline Roasting-Water Dissolving of Germanium from Zinc Oxide Dust

作者：Wang, Wankun Wang, Fuchun

第一作者：Wang, Wankun;王万坤

机构：[1] Key Laboratory of Light Metal Materials Processing Technology of Guizhou Provinces, Guiyang, 550003, China; [2] School of Materials and Energy Engineering, Guizhou Institute of Technology, Guiyang, 550003, China

第一机构：Key Laboratory of Light Metal Materials Processing Technology of Guizhou Provinces, Guiyang, 550003, China

通信机构：Key Laboratory of Light Metal Materials Processing Technology of Guizhou Provinces, Guiyang, 550003, China

会议日期：July 26, 2024 - July 27, 2024

会议地点：Virtual, Online, China

语种：英文

外文关键词：Bioremediation - Calcination - Cleaner production - Dust control - Environmental design - Environmental management - Heat treatment - Hydrometallurgy - Leaching - Photodissociation - Sustainable development

年份：2024

摘要：Zinc hydrometallurgy plants produce large amounts of germanium (Ge)-containing zinc oxide (ZnO) dust during the production process. However, the present leaching percentages of Ge by the sulfuric leaching process from ZnO dust are generally lower than 60%. Thus, a novel process of microwave alkaline roasting followed by water dissolving is proposed to further improve Ge extraction from ZnO dust, and the kinetic behaviors and related theoretical models are studied. Perhaps it can be promoted Ge leaching percentages by water after microwave alkaline roasting, the dissolving reaction kinetics follow the diffusion control model, and the apparent activation energy is 15.46 kJ/mol. ? Published under licence by IOP Publishing Ltd.