Synthesis, Porous Structure and Catalytic Properties of Mixed Vanadium-Titanium Phosphates in Aldol Condensation Reaction of Acetic Acid with Formaldehyde

Technology of Organic Products Department, Lviv Polytechnic National University, Ukraine, Lviv, S. Bandery street 12
Institute for Sorption and Problems of Endoecology of NAS of Ukraine, Ukraine, Kyiv, Naumova street 13

Abstract

Mixed vanadium-titanium phosphates as well as individual vanadium and titanium phosphates were prepared via precipitation from sulfate aqueous solutions. Co-precipitated phosphates were modified through mechanochemical treatment (MChT) and characterized using the adsorption-structural methods. The aldol condensation of acetic acid with formaldehyde to acrylic acid has been used as a test reaction. Reduction of optimum reaction temperature from 623 K to 573 K on the treated catalysts is observed.

Keywords

acrylic acid

aldol condensation

solid catalysts

mechanochemical treatment

porous structure

References

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