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On December 24, the scientific and technological achievements of the "Pilot-test technology for preparing butyl butyrate by one-step catalytic conversion of n-butyraldehyde" jointly developed by the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences and Tianjin Bohua Yongli Chemical Co.
, Ltd.
were approved by the China Petroleum and Chemical Industry Co.
, Ltd.
Appraisal of scientific and technological achievements organized by the association
.
The appraisal committee unanimously agreed that "the technology is advanced, innovative, and the comprehensive technology has reached the international leading level, and it is recommended to develop a 10,000-ton-scale process package and industrial production as soon as possible
.
" ???? Butyl butyrate is a colorless, fruity liquid at room temperature.
It is mainly used to make edible flavors and daily chemical fragrances.
It can also be used for resins and coatings such as nitrocellulose and coumarone.
Solvent
.
The traditional 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
.
Therefore, there is an urgent need to develop new catalysts to realize a green and environmentally friendly production route for butyl butyrate
.
???? "One-step catalytic conversion of n-butyraldehyde to prepare butyl butyrate pilot-scale technology" adopts the catalytic condensation technology developed by the research team of the Dalian Chemical Owner Catalysis Research Group, using n-butyraldehyde as the raw material to synthesize butyl butyrate in one step , In March of this year, the construction of a continuous 100-ton scale pilot plant was completed.
Since the start-up and commissioning in July, the plant has been operating stably, and passed the on-site assessment and calibration by experts organized by the China Petroleum and Chemical Industry Federation on December 21
.
The 72-hour assessment results of this technology are: the average conversion rate of n-butyraldehyde 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 the need for acid and alcohol production processes, and has simple routes, good atomic economy, mild reaction conditions, green and safe, no equipment corrosion problems, low equipment investment and low operation and maintenance costs, etc.
Advantage
.
, Ltd.
were approved by the China Petroleum and Chemical Industry Co.
, Ltd.
Appraisal of scientific and technological achievements organized by the association
.
The appraisal committee unanimously agreed that "the technology is advanced, innovative, and the comprehensive technology has reached the international leading level, and it is recommended to develop a 10,000-ton-scale process package and industrial production as soon as possible
.
" ???? Butyl butyrate is a colorless, fruity liquid at room temperature.
It is mainly used to make edible flavors and daily chemical fragrances.
It can also be used for resins and coatings such as nitrocellulose and coumarone.
Solvent
.
The traditional 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
.
Therefore, there is an urgent need to develop new catalysts to realize a green and environmentally friendly production route for butyl butyrate
.
???? "One-step catalytic conversion of n-butyraldehyde to prepare butyl butyrate pilot-scale technology" adopts the catalytic condensation technology developed by the research team of the Dalian Chemical Owner Catalysis Research Group, using n-butyraldehyde as the raw material to synthesize butyl butyrate in one step , In March of this year, the construction of a continuous 100-ton scale pilot plant was completed.
Since the start-up and commissioning in July, the plant has been operating stably, and passed the on-site assessment and calibration by experts organized by the China Petroleum and Chemical Industry Federation on December 21
.
The 72-hour assessment results of this technology are: the average conversion rate of n-butyraldehyde 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 the need for acid and alcohol production processes, and has simple routes, good atomic economy, mild reaction conditions, green and safe, no equipment corrosion problems, low equipment investment and low operation and maintenance costs, etc.
Advantage
.
