Products
Triple-Action Scale Control for Multiple-Effect Evaporators
"Every micron of scale is a calorie lost. CPAS-1.0 keeps your evaporator tubes clean, campaign-long."
As clarified juice concentrates from 15° Brix to 65° Brix syrup across five effects, mineral salts calcium oxalate (CaOx), (CaCO3), (CaSO4), and silica exceed their solubility limits and precipitate on calandria tube walls. A 1 mm CaOx layer reduces heat transfer by 15–22%, directly increasing bagasse consumption. For a 2,500 TCD mill operating for 150 days, uncontrolled evaporator scaling can cause ₹2.5–4.5 crore in compounded fuel, acid, labour, and production losses.
Between CIP Cycles
CaOx Inhibition Efficiency
Thermal Stability Ceiling
Reduction in Acid Cleaning
Polyacrylate chains absorb onto pre-nucleation mineral clusters at low concentrations (2–20 ppm), disrupting crystal formation before it begins. Prevents scale formation especially in early effects.
Polymer chains incorporate into CaOx and CaCO3 crystal lattices, producing distorted soft polymorphs (vaterite, not calcite). Deposits remain loose and non-adherent, allowing removal during blowdown without acid cleaning.
Branched functional groups envelop suspended particulates, creating a repulsive electrostatic barrier (zeta potential −35 to −55 mV). This prevents agglomeration on heat-transfer surfaces throughout all five effects simultaneously.
| Parameter | Specification |
|---|---|
| Chemical Class | Carboxylic sulfonated terpolymer — branched 3D architecture, food-grade |
| Appearance | Clear to pale yellow homogeneous liquid |
| Specific Gravity @ 25°C | upto : 1.30 ± 0.02 g/cm³ |
| pH (as supplied) | 7.0 – 7.5 |
| Active Polymer Content | 46 - 55% |
| Thermal Stability | No degradation at 150°C / 72 hrs (TGA validated) |
| Phosphorus Content | < 1 ppm per batch (ICP-OES verified) |
| MEE Dosage | 15–20 ppm on mixed juice feed |
| Juice Heater Dosage | 10–15 ppm on raw juice inlet |
| Vacuum Pan Dosage | 5–10 ppm on feed syrup (diluted solution) |
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