Preparation and Catalytic Properties of SrFe2O4 in Selective Oxidation

Abstract

The effect of catalyst atomic ratio on the performance of styrene selective oxidation by H2O2 as probe reaction over spinel type strontium ferrate prepared through sol-gel method was investigated. The catalyst evaluation results show that the optimum catalyst atomic ratio was n(Fe):n(Sr)= 2:1 with high catalytic activity. The catalysts were detected by XRD. The optimum calcination temperature was 700 °C. Micro-structure and essence disciplinarian of strontium ferrate were disclosed. Under normal atmospheric pressure and 0.5 g catalyst dosage conditions, the optimum feed ratio, reactive temperature and reactive time are n(H2O2):n(styrene)=1:1, 343 K and 9 h, respectively. The selectivition and yield of benzaldehyde were 65.7% and 34.3%, respectively. The technological process route possessed under ambient conditions with advantage such as excellent properties in product.