Spongy titanosilicate promotes the catalytic performance and reusability of WO in oxidative cleavage of methyl oleate.

A tungsten containing catalyst catalyzed oxidative cleavage of methyl oleate (MO) by employing HO as an oxidant and is known as an efficient approach for preparing high value-added chemicals, however, the tungsten leaching problem remains unresolved. In this work, a binary catalyst consisting of tungsten oxide (WO) and spongy titanosilicate (STS) zeolite is proposed for MO oxidative cleavage. The function of STS in this catalyst is investigated.

[In-situ FTIR study of CO adsorption on Co-Mo/Al2O3 hydrodesulphurization catalysts].

Due to the implementation of more stringent specifications in sulfur content for diesel oil, a deep understanding of the active phase of Co-Mo/Al2O3 catalysts is necessary to the development of ultra-deep hydrodesulphurization (HYD) catalysts. A series of reductive Co-Mo/Al2O3 catalysts prepared in the lab and the high-active industrial catalyst (G) were studied by in-situ FTIR using CO as probe molecule. The showed a good relationship with the desulphurization activities of the catalysts.

[Investigation of PP/PE blend with FTIR mapping].

The polypropylene/polyethylene (PP/PE) blends with different weight ratio were studied by FTIR spectroscopy. The characteristic absorption bands of PP and PE in different blends were compared. It was found that the ratio of the characteristic absorption peak areas of PP to those of PE is correlated with the weight ratio of PP to PE in the blends.