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ANDRITZ tilting pan filter

APC for phosphoric acid plants solutions

ANDRITZ APC for PAP delivers advanced process control for tilting pan filters in phosphoric acid plants, ensuring consistent, high-performance operation through predictive stabilization and increased yield.

In phosphoric acid plants ( PAP) , production is highly sensitive to variations in raw material quality, solids content, and process interactions. With ANDRITZ APC for PAP, operators gain a fully integrated advanced control solution that keeps the entire process on target — maximizing efficiency, stability, and phosphorus pentoxide (P2O5) recovery.

Optimize your phosphoric acid plant performance through predictive control

ANDRITZ APC uses model predictive control (MPC) together with ANDRITZ Digital Twin technology to forecast process behavior and automatically adjust operating parameters. This ensures tighter control of critical variables such as solids, sulfate, and P2O5, enabling more stable reactor operation and improving the consistency of downstream filtration.

Digital Twin intelligence for real-time decision-making

ANDRITZ Digital Twin provides continuous, real-time predictions of reactor characteristics that typically rely on delayed laboratory samples. This allows ANDRITZ APC for PAP to react faster, keep the reactor within optimal limits, and reduce the variability that leads to inefficiencies and production losses.

Flexible integration for all PAP configurations 

The system supports dihydrate, hemihydrate, and hybrid process setups as well as various filter and reactor designs. It manages operational constraints, guides operators with clear recommendations, and enhances overall process coordination across all production steps.

BENEFITS
• Unparalleled efficiency (uses less water than other separation technologies with comparable filtration area)
• Energy-efficient as the connected horsepower can consist of only a single vacuum pump and compact drive
• Unsurpassed reliability due to robust design
• High production flexibility thanks to heavy-duty rotating frame mounted on support rollers to accommodate extra heavy loads in times of peak production demand
• Deep pan depth and horizontal cake orientation for flood washing of solids to extract maximum acid content
• Precision filter cloth washing ensures that the filter cloth remains unblinded for the maximum length of time
• Easy maintenance requiring only brief training

APC PAP process

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