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On December 24, the pilot-scale technology for preparing butyl butyrate by one-step catalytic conversion of n-butyraldehyde passed the scientific and technological achievement appraisal organized by the China Petroleum and Chemical Industry Federation in Beijing
.
The appraisal committee agreed that the selectivity of the technology is over 98%, the purity of the product is over 99%, and the comprehensive technology has reached the international leading level.
It is recommended that a 10,000-ton-scale process package preparation and industrial production be carried out as soon as possible
.
? The technical results of the cooperation by the Dalian Institute of Chemical Physics, Chinese Academy of Sciences and Tianjin Bohua Yongli Chemical Co.
, Ltd.
developed
.
In response to the technical problems of long preparation route of traditional butyl butyrate, serious equipment corrosion, large pollution, complicated post-treatment process, high production cost and high energy consumption, they developed a high-efficiency catalyst and a one-step catalytic conversion of n-butyraldehyde to prepare butyl butyrate.
New craft
.
According to reports, the technology uses the catalytic condensation technology developed by the research team of the Dalian Chemical Industry Organocatalysis Research Group to synthesize butyl butyrate in one step with n-butyraldehyde as the raw material
.
Using this technological achievement, the joint development team completed the construction of a continuous 100-ton scale pilot plant in March this year
.
The pilot plant has been operating stably since it was commissioned in July and passed the 72-hour on-site assessment and calibration by experts organized by the Petrochemical Federation on December 21
.
The calibration results show that the average conversion rate of n-butyraldehyde of the device is 91.
58%, the selectivity of butyl butyrate is 98.
25%, and the purity of the separated product is 99.
36%.
? This technology can replace the traditional preparation process of butyl butyrate without going through The acid and alcohol production process has the advantages of simple route, good atomic economy, mild reaction conditions, no equipment corrosion problems, low equipment investment and operation and maintenance costs, and provides key technologies for the low-carbon clean production of butyl butyrate
.
? Butyl butyrate is a colorless, fruity liquid at room temperature.
It naturally exists in fruits such as apples, bananas, grapes and strawberries; synthetic products are mainly used in the manufacture of food flavors and daily chemical fragrances, and can also be used as Solvents for resins and coatings such as nitrocellulose and coumarone
.
The traditional production process uses n-butyric acid and n-butanol as raw materials, concentrated sulfuric acid as a catalyst, and esterification to produce butyl butyrate.
The single-pass conversion rate of the reaction is low, side reactions are many, equipment corrosion is serious, and the emissions of "three wastes" are low.
Many disadvantages such as large size, complex post-processing and high production cost
.
.
The appraisal committee agreed that the selectivity of the technology is over 98%, the purity of the product is over 99%, and the comprehensive technology has reached the international leading level.
It is recommended that a 10,000-ton-scale process package preparation and industrial production be carried out as soon as possible
.
? The technical results of the cooperation by the Dalian Institute of Chemical Physics, Chinese Academy of Sciences and Tianjin Bohua Yongli Chemical Co.
, Ltd.
developed
.
In response to the technical problems of long preparation route of traditional butyl butyrate, serious equipment corrosion, large pollution, complicated post-treatment process, high production cost and high energy consumption, they developed a high-efficiency catalyst and a one-step catalytic conversion of n-butyraldehyde to prepare butyl butyrate.
New craft
.
According to reports, the technology uses the catalytic condensation technology developed by the research team of the Dalian Chemical Industry Organocatalysis Research Group to synthesize butyl butyrate in one step with n-butyraldehyde as the raw material
.
Using this technological achievement, the joint development team completed the construction of a continuous 100-ton scale pilot plant in March this year
.
The pilot plant has been operating stably since it was commissioned in July and passed the 72-hour on-site assessment and calibration by experts organized by the Petrochemical Federation on December 21
.
The calibration results show that the average conversion rate of n-butyraldehyde of the device is 91.
58%, the selectivity of butyl butyrate is 98.
25%, and the purity of the separated product is 99.
36%.
? This technology can replace the traditional preparation process of butyl butyrate without going through The acid and alcohol production process has the advantages of simple route, good atomic economy, mild reaction conditions, no equipment corrosion problems, low equipment investment and operation and maintenance costs, and provides key technologies for the low-carbon clean production of butyl butyrate
.
? Butyl butyrate is a colorless, fruity liquid at room temperature.
It naturally exists in fruits such as apples, bananas, grapes and strawberries; synthetic products are mainly used in the manufacture of food flavors and daily chemical fragrances, and can also be used as Solvents for resins and coatings such as nitrocellulose and coumarone
.
The traditional production process uses n-butyric acid and n-butanol as raw materials, concentrated sulfuric acid as a catalyst, and esterification to produce butyl butyrate.
The single-pass conversion rate of the reaction is low, side reactions are many, equipment corrosion is serious, and the emissions of "three wastes" are low.
Many disadvantages such as large size, complex post-processing and high production cost
.
