In vanadium extraction processes, whether using the traditional sodium roasting-acid leaching method or the novel salt-free roasting-acid leaching method, the final step involves an extraction process to achieve efficient separation and purification of vanadium. The CWL-M centrifugal extractor, based on the principle of enhanced centrifugal force, generates a centrifugal force exceeding 1000G through high-speed rotation, completing the rapid mixing and thorough separation of the extractant and vanadium-containing leachate within 1-2 minutes.
The CWL-M centrifugal extractor is particularly suitable for processing acidic leachates containing vanadate ions such as HV₁₀O₂₈⁵⁻ and VO₃⁻. Through efficient cooperation with specific extractants such as N-263 and 7402, selective extraction of vanadium can be achieved, with a single-stage efficiency exceeding 90%. Using a three-stage countercurrent extraction process, the overall vanadium recovery rate can reach 95%-98%, significantly superior to traditional mixer-settler processes.
The core advantages of the CWL-M centrifugal extractor lie in its exceptional separation performance and stable operation. In practical applications, the equipment demonstrates extremely high selectivity in vanadium-iron separation, with a separation coefficient exceeding 1000, effectively avoiding the co-extraction of impurity ions. The fully enclosed design reduces solvent evaporation loss by more than 85%, and the extractant recycling rate exceeds 98%, significantly lowering operating costs.
In a practical application at a vanadium smelting enterprise, the CWL-M centrifugal extractor increased the vanadium recovery rate from 88% with traditional processes to 96.5%, achieving a vanadium pentoxide product purity of over 99.5%, while simultaneously reducing wastewater discharge by 60%, demonstrating excellent technical and economic benefits.
To ensure the smooth implementation of the process, Zhengzhou Tiei Extraction provides comprehensive technical services ranging from experimental verification to industrial-scale amplification. Our technical team can determine the optimal extraction system, pH range, and operating parameters through systematic experimental research based on the leachate samples provided by the customer. We then use the CWL-M experimental model for process verification and parameter optimization. Based on the experimental data, we can provide customers with a scientific industrial-scale amplification plan, including complete process flow design, equipment selection and configuration, and economic benefit analysis. Currently, we have successfully implemented several industrial projects, with equipment running continuously for over 6000 hours and stable and reliable process indicators.
With increasingly stringent environmental requirements and the deepening development of comprehensive utilization of vanadium resources, CWL-M centrifugal extraction technology will play a greater role in the upgrading of vanadium extraction processes from carbonaceous shale and the resource utilization of vanadium slag. We will continue to innovate technologically and promote the development of the vanadium industry towards efficiency, cleanliness, and sustainability.
Email: sales@tieiextraction.com
Whatsapp: +86 19069612820
