Method for improving index of biological method butyl alcohol sulfuric acid color test
A technology of color test and method butanol, which is applied in the preparation of test samples, material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions, can solve the problem of sulfuric acid color indicators. Good and other questions
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Embodiment 1
[0028] Embodiment 1. Potassium permanganate oxidation removal of impurities
[0029] The sulfuric acid color test index of biological butanol raw material is 60# (platinum-cobalt). Add 40 g of 2% potassium permanganate aqueous solution to 200 g of butanol, and reflux for 30 minutes at a temperature of 117.5° C. After the reaction, the reaction solution was distilled through a fractionating column, the top distillate was butanol water mixture, and the bottom distillate was butanol. The reaction solution was distilled until ~15 g of residual liquid remained. The fractionated butanol product is the finished product, and the result of the sulfuric acid color test is 15#.
Embodiment 2
[0030] Embodiment 2. Potassium permanganate oxidation removal of impurities
[0031] The sulfuric acid color test index of biological butanol raw material is 40# (platinum-cobalt). Among 200 grams of butanol, add 20 grams of 3% potassium permanganate aqueous solution, and reflux for 60 minutes at a temperature of 117.5° C. After the reaction, the reaction solution was distilled through a fractionating column, the top distillate was butanol water mixture, and the bottom distillate was butanol. The reaction solution was distilled until ~15 g of residual liquid remained. The fractionated butanol product is the finished product, and the result of the sulfuric acid color test is 10#.
Embodiment 3
[0032] Embodiment 3. sulfuric acid oxidation impurity removal
[0033] The sulfuric acid color test index of biological butanol raw material is 60# (platinum-cobalt). Add 0.2 g of 98% concentrated sulfuric acid to 200 g of butanol, and reflux for 30 minutes at a temperature of 117.5° C. After the reaction is finished, the reaction solution is distilled through a fractionating column, the top distillate is a small amount of butanol water mixture, and the bottom distillate is butanol. The reaction solution was distilled until ~10 g of residual liquid remained. The fractionated butanol product is the finished product, and the result of the sulfuric acid color test is 20#.
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