PET TPA SiO PET TPA BIOMASS-DERIVED SiO CATALYST FOR TPA HYDROLYSIS OF PET MANUFACTURING THEREOF AND TPA HYDROLYSIS OF PET USING THE CATALIST

摘要

According to a preferred embodiment of the present invention, the SiO ₂ catalyst is characterized in that it is extracted from biomass. Using the biomass-derived SiO ₂ catalyst according to the present invention, a method for producing the same, and a method for decomposing PET using the same, it is possible to produce high-purity terephthalic acid (TPA) in a time faster than the hydrolysis rate of PET under conventional neutral conditions In addition, the prepared terephthalic acid can be usefully used as a raw material for polyester fibers.