Controllable Synthesis of Battery-Grade Iron Oxalate with Waste Ferrous Sulfate from Titanium Dioxide Production
In order to utilize the waste ferrous sulfate from titanium dioxide production effectively, a statistical experimental design was used to optimize the preparation process parameters for synthesis of battery-grade iron oxalate. The controllable synthesis of iron oxalate with different particle size and purity was investigated to further illustrate the effects of various factors on iron oxalate growth. Results show that the reaction temperature plays a key role on both material’s purity and size. The influence of reaction factors can be attributed to the change of thermodynamics and kinetics which leads to the different crystal nucleation and growth process. The model has a well fitted response and a good liner correlation with the data of variance analysis. The analytical results in this paper demonstrate that the preparation of battery-grade iron oxalate is a new way to utilize waste ferrous sulfate, which offers an opportunity for green and safe industrial production.
KeywordsIron oxalate Waste ferrous sulfate Titanium dioxide production Lithium ion batteries
This work was financially supported by the National Natural Science Foundation of China (Grant No. 51364021) and the Program for Innovative Research Team at the University of Ministry of Education of China (No. IRT_17R48).
- 3.Zhu XY, Xu GJ, Liu CH (2011) Upgrading of China’s Titanium Dioxide industry from the perspective of clean production. In: 2011 international conference on remote sensing, environment and transportation engineering, pp 8723–8726. https://doi.org/10.1109/rsete.2011.5964212
- 13.Vatanara A, Najafabadi A R, Gilani K, Asgharian R, Darabi M, Rafiee-Tehrani M (2007) A Plackett–Burman design for screening of the operation variables in the formation of salbutamol sulphate particles by supercritical antisolvent. J Supercrit Fluids. 40(1):111–116. https://doi.org/10.1016/j.supflu.2006.03.028CrossRefGoogle Scholar