DOWSIL ACP-3056 is a high-efficiency silicone defoamer engineered for pulp black liquor, combining siloxane fluid with a fine silica suspension (100% active) to boost defoaming performance. It maintains stability across pH 2–12 and temperatures ≤150°C, rapidly collapsing micron-level foam (≤10 sec) with a dynamic surface tension of 25 mN/m and providing 8+ hours of foam suppression. Its silica-enhanced technology accelerates foam film drainage, improving pulp washing efficiency by 20%–30%, and it complies with FDA 21 CFR 176.210 for safe use in kraft/sulfite pulping.
Synergistic Defoaming: Silica-siloxane combination achieves >95% foam elimination, especially effective in high-solids black liquor (e.g., pine/eucalyptus pulp).
Harsh Condition Resistance: Tolerates strong acid/alkali (pH 2–12) and high shear (≥5000 rpm) during pulp cooking and bleaching stages.
Long Shelf Life: 360-day stability without stratification, usable in storage temperatures ranging from -20°C to 50°C.
Chemical Pulping: Controls black liquor foam in kraft pulping (0.05%–0.2% dosage) to minimize fiber loss.
Pulp Bleaching: Enhances uniformity of H₂O₂ bleaching and improves pulp brightness.
Wastewater Treatment: Reduces foam in high-COD effluent aeration tanks of pulp facilities.
Type | Siloxane-silica composite defoamer |
Appearance | Gray-white liquid |
Active Content | Polydimethylsiloxane + silica (100%) |
Dynamic Viscosity | 12,000-25,000 cP |
Flash Point (closed cup) | >100℃ |
pH Range | 2-12 |
Recommended Dosage | 0.05%-0.3% (on total system) |
Packaging | 25kg/drum or 200kg/IBC |
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E-mail: wangxingqiang@ericwchem.com
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