Wet zinc extraction process and technology

Author: Yang Dajin, Zhu Huashan, Chen Jiaxi / Country: Mainland China
Publisher:
Publish Date: 2006-08-01
Features: The book is divided into 8 chapters, with the main content including an overview of zinc metallurgy processes, laboratory tests of bacterial leaching for low-grade sulfide zinc ores, zinc leaching performance and heap leaching of low-grade oxide zinc ores, iron removal from leach solutions, the extraction and stripping process of purified solutions, the removal of organic phases from the stripping solution and electrowinning, and leaching-extraction-electrowinning of low-grade zinc ores. This book is suitable for engineering and technical personnel in the non-ferrous metallurgy industry for reference, and can also serve as a teaching reference for relevant majors in higher education institutions. The book primarily introduces the hydrometallurgical process and technology for zinc extraction from low-grade zinc ores, including heap leaching of low-grade oxide zinc ores, the use of mixed bacteria for bacterial leaching, iron removal by oxidation and neutralization before leach solution extraction, the use of a single P204 extractant for neutralized purified solutions, no neutralization of free acid during the extraction process, direct stripping using zinc electrowinning waste solution, and the removal of organic phases from the stripping solution using activated carbon.