Filtration / Filter Aids for Phosphoric Acid Production
What Are Filtration Aids?
Filtration aids are specialty process aids used during wet-process phosphoric acid production to improve gypsum slurry filtration. By promoting the formation of larger, more uniform gypsum crystals, filtration aids create a more permeable filter cake that allows liquids to drain more efficiently.
Improved filtration directly increases phosphoric acid production rates while maximizing recovery of valuable phosphate resources.
Why Filtration Matters
During phosphoric acid production, gypsum crystals are separated from phosphoric acid through filtration. The size, shape, and consistency of these crystals significantly influence filtration performance and overall plant productivity.
Poor filtration can lead to:
- Lower production capacity
- Reduced P₂O₅ recovery
- Slower filtration rates
- Higher operating costs
- Reduced phosphoric acid quality
- Increased process inefficiencies
Optimizing gypsum crystal formation improves filtration efficiency and supports more reliable plant operation.
Arkema's Filtration Aid Technologies
Arkema develops customized polymeric filtration aids that promote the formation of larger gypsum crystal structures, creating larger void spaces within the filter cake for faster liquid drainage.
Our filtration technologies can be tailored to each plant by adjusting molecular weight, charge characteristics, and chemistry to match specific operating conditions and gypsum slurry properties.
Available technologies include:
- Anionic, cationic, and non-ionic powders
- Emulsion formulations
- Liquid coagulants
- GRAS and food-grade chemistries
- Alternative non-PAM technologies
Because every phosphoric acid operation is different, Arkema works closely with customers to identify the optimal filtration solution for their specific process.
Benefits of Arkema Filtration Aids
Arkema's filtration technologies help phosphate producers achieve:
- Increased production capacity
- Improved filtration efficiency
- Higher P₂O₅ recovery
- Cleaner phosphoric acid with lower total organic carbon (TOC)
- Higher fertilizer grades
- Reduced defoamer consumption
- Lower operating costs
- Improved overall plant performance
Why Choose Arkema?
Arkema combines phosphate processing expertise with advanced filtration technologies to help producers maximize phosphoric acid production and process efficiency.
Our customers benefit from:
- Customized filtration aid formulations
- Laboratory and technical support
- Process optimization expertise
- Delivery system recommendations
- Global manufacturing capabilities
- Decades of phosphate industry experience
Partner with Arkema
Whether you're increasing phosphoric acid production, improving filtration performance, or maximizing P₂O₅ recovery, Arkema's technical experts are ready to help.
Contact our team to learn how Arkema's filtration aid technologies can optimize your production process.
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