Preparation method of butyl acrylate
By controlling the proportion of key impurities in acrylic acid and optimizing the distillation process, combined with process adjustments to the butyl acrylate recombinant decomposer, the problem of high production cost of butyl acrylate was solved, achieving efficient impurity decomposition and recovery, and reducing raw material consumption and production costs.
Patent Information
- Application Number
- CN202511972094.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-25
- Publication Date
- 2026-07-10
AI Technical Summary
The production cost of butyl acrylate in the current technology is high, mainly due to the increased raw material cost and large amount of tar emissions caused by the demand for high-purity acrylic acid, and the insufficient ability of the esterification process to decompose heavy component ester impurities.
By controlling the proportion of key impurities in acrylic acid and adding auxiliaries 2,4-dimethyldithiocarbamate and phenothiazine, the distillation and esterification process parameters are optimized to reduce the purity requirements of acrylic acid. Combined with the process adjustment of the butyl ester recombinant decomposer, the impurities are effectively decomposed and recovered.
It reduced the production cost of butyl acrylate, decreased tar emissions, improved product purity and production efficiency, and reduced the consumption of butanol.