Project Description
Defoamer for Phosphoric Acid Production | Wet Process Foam Control
Foam generation during phosphate rock slurry processing severely reduces reactor effective volume fractions, retards calcium sulfate dihydrate (gypsum) crystallization kinetics, and impairs vacuum filtration terminal recovery metrics. Intense macro-foam layer build-up within Wet Process Phosphoric Acid (WPA) digestion tanks is triggered primarily by aggressive carbon dioxide (CO2) gas release boundaries and residual organic matter matrices under highly corrosive mineral acid inputs.
INVINO® formulates technical silicone-free aliphatic hydrocarbons and specialized fatty alcohol structures calculated stable across severe acidic mediums (pH 1.0–2.0 boundaries). Our core focus centers on the standard Dihydrate (DH) process route operating within 75–85°C environments, accelerating slurry degassing kinetics to eliminate filter wire blinding and secure maximum P2O5 recovery boundaries.
Discuss Your Digestion Foam Challenge
Process-Specific Foam Control Criteria for Phosphoric Acid
- Extreme Chemical Stability: Withstands harsh Wet Process Phosphoric Acid (WPA) digestion boundaries (pH 1.0–2.0) without undergoing molecular surfactant degradation or phase separation.
- Thermal Persistence: Maintains active antifoaming and continuous de-aeration kinematics up to 85°C limits throughout standard dihydrate reactor tank loops.
- Faster Cake Filtration: Prompts gas micelle evacuation from the gypsum slurry to prevent crystal filter wire blinding, reducing wash water parameters and elevating net extraction yield weights of P2O5.
Defoamer Selection Guide for Phosphate Processing
| PROCESS STAGE | KEY PERFORMANCE PARAMETERS | DATA SHEET |
|---|---|---|
|
Wet Process Phosphoric Acid (Dihydrate Process) | Synthesized as a highly persistent, silicone-free aliphatic hydrocarbon compound. Delivers superior acid resistance across corrosive digestion matrix tanks and exceptional thermal stability under continuous heat loops. Accelerates gypsum crystallization slurry gas evacuation to fully prevent vacuum wire blinding. | DOWNLOAD TDS |
Technical FAQ for Phosphoric Acid Producers
Q: Will the defoamer negatively impact P2O5 recovery or gypsum crystal quality?
A: No. Incorrectly formulated anti-foaming agents can break emulsion under intensive mechanical agitation, leaving oily fractions that warp calcium sulfate dihydrate crystal habits. INVINO-P9502 is chemically inert relative to crystallization axes, ensuring distinct rhombic crystal formats to maximize filtration cake washing speeds.
Q: Silicone vs. Non-Silicone: Which composition matrix is required for WPA?
A: Standard silicone (dimethylpolysiloxane) fluids carry an acute risk of structural decomposition under hot, highly concentrated phosphoric acid environments, generating silica deposits that blind vacuum cloth filters. We utilize highly persistent non-silicone aliphatic matrices engineered safe from downstream membrane fouling or filtration blinding hazards.
Q: Does the defoamer formulation induce heat-exchanger scaling during acid evaporation?
A: Our structural active agents possess low volatility index boundaries and are designed to split cleanly into calcium cake fractions during the primary belt filtration step. This isolates the organic chemistry from carrying over into down-stream vacuum evaporators, preventing carbonaceous scaling across heat exchanger walls.
Request Your WPA Defoamer Solution
Standard Protocol for Mineral Acid Sample Verification
System Parameter Submission
Provide chemical data tracking your input phosphate rock grade, organic matter content fraction, reactor heat baselines, and filtration wire layouts.
Laboratory Evaluation via Vacuum Cake Filtration & Non-Silicone HTHP Digestion
Our mineral acid chemical laboratory division reviews your index profile, running simulated rock digestion tests and vacuum cake filtration trials to cross-match a scale-free sample.
Physical Sample Freight Dispatch
Validated laboratory trial samples are labeled and shipped via premium global express freight lines to support prompt digestion tank onsite testing variables.
