چكيده به لاتين
In this research, a simple, inexpensive, and cost-effective method of economics, the steps of the proposed method without much energy consumption, which is another advantage of this method. In this method, TiO2 nanoparticles of high purity were prepared from sulfuric acid solubilizing with 24.48% TiO2 purity. The effects of temperature, acid concentration, time, solid-to-liquid ratio (S/L) on titanium dissolution were studied. The titanium dissolution rate in optimal and optimized conditions was 84.36%. After the dissolution phase, the iron purification operation was performed using a regeneration method, and the iron removal percentage of the solution was close to 100%, which reduced the impurity of iron in the process of producing TiO2. In the next process, from the resulting titanyl sulfate solution, the H2TiO3 deposition was obtained by direct hydrolysis, both anatase, rutile and intermediate phase were formed at different temperatures, the TiO2 nanoparticle purity above 99% with a particle size of about 20-25 nm M, and its optical catalytic activity was used to degrade methionine-orange contamination. the results showed that the catalytic activity of the TiO2 anatase nanoparticles, calcined at 600 ° C, with the highest efficiency of 84.5%, was the most destructive.
Ilmenite ores and final products are confirmed by X-ray diffraction (XRD), electron microscopy scanning (SEM), X-ray fluorescence spectroscopy (XRF), inductively coupled plasma spectroscopy (ICP).
The results show that this process is suitable for industrial production because it is inexpensive, simple, environmentally friendly and capable of producing high purity TiO2 nanoparticles.
