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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

Active Publication Date: 2013-04-24
CATHAY R&D CENT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is the problem that the sulfuric acid color index of existing biological method butanol is not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

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 oxidative impurity removal

[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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Abstract

The invention belongs to the chemical technical field and particularly relates to a method used for enhancing the index of biobutanol sulfuric acid color test. The invention discloses the method used for enhancing the index of biobutanol sulfuric acid color test and the method adopts oxidants and / or absorbents and / or distillation to treat the biobutanol to lead the index of biobutanol sulfuric acid color test to be less than 20#. The method disclosed by the invention aims to lead the index of sulfuric acid color test to be less than 20# (platinum-cobalt) and even less than 5# (platinum-cobalt) without decreasing other indexes of the biobutanol product. The biobutanol product produced by the method can thoroughly meet the requirements of clients needing the following products of butyl acetate and butyl acrylate and the like. The invention expands the application space for biobutanol.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a method for improving the index of the biological butanol sulfuric acid color test. Background technique [0002] Butanol is an important chemical basic product. According to literature reports, the global production of butanol reached 2.6 million tons in 2005. Butanol is mainly used in chemical industry and medicine, butanol derivatives such as dibutyl phthalate, butyl acetate and butyl acrylate account for the vast majority of butanol in chemical industry. [0003] Butanol in the world today is basically synthesized by chemical methods. However, with the continuous rise of oil prices, biosynthesis of butanol shows an increasingly strong cost advantage. [0004] Biological synthesis of butanol generally uses bio-based raw materials, such as corn and cassava, through microbial fermentation to produce a mixture of butanol, acetone and alcohol. The mixture...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28G01N21/78
Inventor 秦兵兵李乃强邱勇隽
Owner CATHAY R&D CENT CO LTD
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