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- W2357797587 abstract "A series of SnO2 catalysts were prepared by the precipitation method using different precipitants. The synthesized catalysts were characterized by X-ray diffraction, N2 adsorption, transmission electron microscopy, and scanning electron microscopy. Their catalytic activity was studied in a liquid-phase reaction system of benzene nitration. The results showed that SnO2 particles prepared by the precipitation method exhibited higher catalytic activity than the commercial SnO2, while nanosize SnO2 crystals with an average size about 10 nm, showed a high specific surface area and fairly good catalytic activity. Calcination temperature was an important factor that influenced the crystal size and catalyst activity. The optimal calcination temperature was 400–500 ℃. The influences of catalyst amount, reaction temperature, and reaction time on the yield of nitrobenzene were also investigated. The yield of nitrobenzene reached 90.6% with almost 100% selectivity after 7 h reaction at 90℃ and nitric acid/benzene volume ratio = 2.0." @default.
- W2357797587 created "2016-06-24" @default.
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- W2357797587 date "2009-01-01" @default.
- W2357797587 modified "2023-09-23" @default.
- W2357797587 title "Nitration of Benzene to Nitrobenzene over Nanosized Stannic Oxide Catalysts" @default.
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- W2357797587 hasPublicationYear "2009" @default.
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