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A novel solid base catalyst derived from gasified straw slag for producing biodiesel was prepared by simple pulverization and sieving. This catalyst exhibited high stability, low leaching of the catalytic species, and good catalytic activity, caused by high-temperature melting in the biomass gasifier. SiO2, CaO, K2O, MgO, FeO, and Al2O3 were the common constituents (calculated as oxides) as per XRF...
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