Industrial defoamers function by disrupting foam structures through four key mechanisms:
Surface Tension Reduction: Defoamer molecules reduce localized surface tension, causing film collapse.
Film Elasticity Destruction: They penetrate foam films to weaken self-healing capacity.
Surfactant Displacement: They replace foam-stabilizing surfactants, breaking bilayer structures.
Foam Lifespan Shortening: By reducing film viscosity and accelerating drainage, foam stability diminishes.
Chemi Tech's defoamers excel in:
Salt Tolerance: Triazine hydrophobic groups ensure efficiency in high-ionic systems (e.g., Ni2+ 75-100g/L, Sc3+ 0.5-1.5g/L).
Thermal Stability: Molecular integrity under 55-130°C suits continuous production lines.
Low Dosage: 0.01-0.1 vol% in extractants (e.g., P204/white oil) stabilizes multistage countercurrent extraction (3-5 stages).
In vanadium-titanium magnetite leaching:
Leaching Phase: Prioritize permeability to prevent foam-entrapped particles.
Extraction Phase: Optimize compatibility with organic phases (e.g., kerosene) to avoid emulsion thickening.