Details

Autor(en) / Beteiligte

• Yujie Hu
• Guohua Ye
• Yue Tang
• Yuanyuan Tao

Titel

Current Status and Development Trend of Vanadium Extraction by P204 Extraction

Ist Teil von

• Kuangchan Zonghe Liyong, 2023-06, Vol.44 (3), p.63-69

Ort / Verlag

Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• This is a paper in the field of metallurgical engineering. Organophosphorus class extractant D2EHPA (P204) is very widely used in vanadium extraction. Firstly, the form of vanadium present in the leach solution affects the effect of extraction, V(IV) is mainly stable in solution in the form of VO2+ in a strongly acidic solution; when the pH value gradually increases, V(V) mostly exists in the form of H2V10O28 4- and HV10O28 5-. Secondly, based on the research of organophosphorus extractant P204 in recent years, this paper analyzes the conformational relationship of organophosphorus extractant P204 and finds that the spatial site resistance effect is equally important as a secondary factor compared with the type of phosphoryl adjacent groups, based on the hydrogen bonding effect, the extractant molecules will produce dimers or even multimers between them, thus changing the structure and properties of the extractant molecules. Finally, the progress of the development and application of P204 extractive vanadium