Resource utilization system and method for acetic acid-containing wastewater in acrylic acid production
By designing a resource utilization system that includes a concentration separation module for acetic acid wastewater, n-butyl acetate preparation module and sodium polyacrylate preparation module, the problem of acetic acid wastewater treatment in acrylic production is solved, efficient concentration and resource utilization is achieved, and high-purity n-butyl acetate and sodium polyacrylate are produced, reducing energy consumption and production costs.
Patent Information
- Application Number
- CN202411788497.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-03-25
AI Technical Summary
The acetic acid-containing wastewater produced in acrylic acid production cannot be directly entered into the biochemical treatment, resulting in high energy consumption and production costs of incineration treatment, and at the same time, the effective components cannot be fully utilized.
A resource utilization system was designed, including acetic acid wastewater concentration separation module, n-butyl acetate preparation module and sodium polyacrylate preparation module. Acetic acid and acrylic acid in wastewater were extracted and utilized through technical means such as liquid phase film concentration, multi-stage tandem reactor and distillation tower.
It has achieved efficient concentration and resource utilization of acetic acid wastewater, and produced high-purity n-butyl acetate and sodium polyacrylate, reducing energy consumption and production costs, while reducing environmental pollution.