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- W2365432595 abstract "Synthesis of dibutyl oxalate from oxalic acid and n-butyl alcohol over bentonite activated by acid(SO42-/Bentonite) was studied.Preparation condition for the catalyst,such as calcination temperature,had apparently influence on catalytic behaviors of SO42-/Bentonite,with optimum calcination temperature of 500 ℃.Effects of reaction condition,i.e.,reaction temperature,n-butyl-alcohol-to-oxalic-acid mole ratio,catalyst dosage and reaction time,was investigated.Optimum reaction condition was obtained by orthogonal experiment as follows: n(n-butyl alcohol) ∶n(oxalic acid)=3.5∶1,catalyst dosage=1.5% of the total mass of oxalic acid and n-butyl alcohol,reaction temperature 130 ℃,reaction time 3 h.Oxalic acid conversion of 95.8% was obtained.Activity of the catalyst kept at 93.6% after 6 cycles of use." @default.
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- W2365432595 date "2008-01-01" @default.
- W2365432595 modified "2023-09-24" @default.
- W2365432595 title "Synthesis of dibutyl oxalate over bentonite activated by acid" @default.
- W2365432595 hasPublicationYear "2008" @default.
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