引用本文:
梅帆, 秦炜, 戴猷元. 苯甲酸稀溶液的萃取特性[J]. 应用化学,
2002, 19(6): 517-520.
Citation: MEI Fan, QIN Wei, DAI You-Yuan. Extraction Behavior of Benzoic Acid in Dilute Solution[J]. Chinese Journal of Applied Chemistry, 2002, 19(6): 517-520.

Citation: MEI Fan, QIN Wei, DAI You-Yuan. Extraction Behavior of Benzoic Acid in Dilute Solution[J]. Chinese Journal of Applied Chemistry, 2002, 19(6): 517-520.

苯甲酸稀溶液的萃取特性
English
Extraction Behavior of Benzoic Acid in Dilute Solution
Abstract:
The extraction equilibrium experiments for benzoic acid in dilute solution were carried out using tributyl phosphate(TBP) in kerosene, n-octanol, n-butanol, hexane, heptane, benzene and MIBK as extractants. The extraction equilibrium equations have been deducted and the apparent extraction equilibrium constants were obtained by the regression of the experimental data. The results showed that the distribution coefficient(D) of benzoic acid depended on the polarity of the solvent in the order of n-octanol > n-butanol > MIBK > benzene > hexane(heptane). The stronger the polarity, the larger the distribution coefficient. The extractability of n-octanol was equivalent to that of 30% TBP-kerosene, and n-octanol is a promising extractant for commercial use.
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Key words:
- benzoic acid
- / extraction
- / tributyl phosphate
- / n-octanol
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