How does candle filtration support reliable solid-liquid separation in adipic acid processes?

Adipic acid production places high demands on solid-liquid separation, particularly when processing high-solids slurries in nitric acid environments. Filtration equipment must combine corrosion resistance, stable performance, and controlled solids handling to support continuous operation and consistent product quality.

What are the solid-liquid separation challenges in adipic acid production?

During adipic acid processing, the coexistence of solid adipic acid particles and nitric acid solutions creates a chemically aggressive and mechanically demanding filtration duty. Inadequate separation performance can lead to operational instability, reduced throughput, and increased maintenance requirements.

Effective filtration in this application must therefore:

  • Handle high solids loading under corrosive conditions

  • Maintain consistent filtrate clarity

  • Support controlled and reliable solids discharge

How does the FUNDABAC® candle filter address high-load adipic acid filtration?

For this project, DrM supplied six FUNDABAC® candle filters to a customer in China for use in an adipic acid production unit. The multi-unit system provides a total filtration area exceeding 300 m² and is engineered for high-load operation with slurry cake discharge, enabling controlled solids handling while delivering clear filtrate.

The FUNDABAC® candle filter operates as a fully enclosed pressure filtration system, supporting stable separation performance and safe handling of aggressive process media. Its modular design allows adaptation to demanding chemical environments while maintaining operational reliability.

Why is FUNDABAC® suited for large-scale adipic acid production?

This project builds on DrM’s established experience with FUNDABAC® technology in demanding chemical processes and demonstrates its suitability for large-scale adipic acid production under aggressive operating conditions.