Vanadium is a silvery white metal with a high melting point. It is often called a refractory metal along with niobium, tantalum, tungsten and molybdenum. Vanadium metal is ductile and hard. With the continuous research of technology on vanadium metal, vanadium metal has been widely used in many fields such as industry, aerospace, chemistry, batteries, pigments, glass, optics, medicine, etc.
Vanadium is widely distributed and has a high content, but the extraction process for metallic vanadium has been in the research stage. The selection and process of vanadium extraction equipment are also the focus of customer attention. The traditional vanadium shale vanadium extraction process mainly involves roasting the ore, leaching, purification and enrichment, and then calcination of vanadium precipitation. The specific operating principle of this process is to destroy the vanadium-containing mineral structure in the ore by roasting, and then transfer the vanadium in the mineral to the liquid phase through leaching, and then purify and enrich it to achieve vanadium enrichment and impurity removal. The traditional vanadium precipitation process is to use hydrolysis precipitation or ammonium salt precipitation. The operation process is relatively complicated and troublesome, and the vanadium has many impurities and low purity.
With the development of technology, a new process for extracting vanadium has been born--ammonium-free vanadium precipitation. This new operating process uses an ammonium-free vanadium precipitation process to produce vanadium pentoxide. This process is to acid-leach the ore, transfer the vanadium-containing elements to the liquid phase, and then use a suitable extractant for extraction. The stripping section obtains tetravalent vanadium, which is then oxidized to obtain pentavalent vanadium, forming a supersaturated system of pentavalent vanadium, and crystallizing polyvanadic acid precipitation. In the subsequent section, a new precipitant - sodium carbonate solution is added to the stripping solution to continue precipitation, and finally vanadium pentoxide is formed.
The new ammonium-free vanadium precipitation process is simple to operate during the production process, with high vanadium purity and few impurities. It will be the main process for extracting vanadium from vanadium shale in the future. The extraction and stripping sections of this process can be operated by the centrifugal extractor, which effectively improves the extraction rate of vanadium and ensures the effective operation of the entire section. If you want to learn more about the operating principle and process of liquid-liquid extraction equipment--centrifugal extractor in ammonium-free vanadium precipitation, welcome contact Zhengzhou Tiei Extraction.
Email: sales@tieiextraction.com
Whatsapp: +86 19069612820
