Product Details
What Is Lime Slurry?
Lime slurry is a ready‑to‑use aqueous suspension of calcium hydroxide (Ca(OH)₂) or calcium oxide (CaO) in water, commonly called hydrated lime, dispersed in water at concentrations typically between 20% and 30% solids by weight. Delivered as a milky‑white liquid, it offers consistent quality and avoids dust generation, making it ideal for automated dosing and continuous treatment processes.
How Is Lime Slurry Produced?
Production Process
Raw Material Selection: High-purity quicklime (CaO ≥90%) or hydrated lime.
Slaking: Mixing CaO with water in slakers (exothermic reaction: CaO + H₂O → Ca(OH)₂).
Particle Size Control: Grinding/screening to achieve 10–50μm particle size.
Stabilization: Additives (e.g., cellulose) to prevent settling during storage.
Quality Control
Consistency: Automated viscosity monitoring (Brookfield RV/T series).
Purity: XRF testing for MgO, SiO₂, and unreacted CaO (<2%).
Technical Specifications
| Parameter | Specifications | Testing Method |
|---|---|---|
| Solids Content | 15–40% (customizable) | Oven drying at 105°C |
| Particle Size (D90) | ≤50μm | Laser diffraction |
| pH (25°C) | 12.0–12.5 | pH meter (ASTM E70) |
| Viscosity | 500–2.000 cP | Brookfield viscometer |
| Heavy Metals | Pb/Cd/As <1ppm | ICP-MS |
Core Advantages of Lime Slurry
Dust‑Free Handling: Eliminates airborne particulate hazards and minimizes operator exposure.
Consistent Quality: Pre‑mixed suspension ensures uniform solids concentration and performance.
Automation‑Ready: Ideal for inline dosing pumps and continuous treatment systems.
Reduced Maintenance: Low viscosity and fine particles prevent clogging of pipes and nozzles.
Rapid Reactivity: Instant availability of Ca(OH)₂ accelerates neutralization and precipitation reactions.
Applications of Lime Slurry
1 Water & Wastewater Treatment
Acid Neutralization: Treats pH 1–3 mine drainage (dosage 2–5kg/m³).
Phosphorus Removal: 85–95% reduction in municipal wastewater (WEF study).
2 Flue Gas Desulfurization (FGD)
SO₂ Scrubbing: 1 ton lime slurry removes 0.8–1.2 tons SO₂ (EPA-compliant).
3 Soil Stabilization
Clay Soil Modification: 5–10% slurry addition increases CBR by 200%.
4 Pulp & Paper
Kraft Process: Adjusts digester pH to 12–13 for lignin separation.
5 Food Industry
Corn Processing: pH control in starch extraction (FDA 21 CFR 184.1205).
6 Chemical Manufacturing
pH control, CO₂ scrubbing, and base feedstock for specialty chemicals.
Quality & Certifications
Standards: NSF/ANSI 60 (drinking water), EPA 40 CFR Part 60 (FGD).
Safety: MSDS-compliant, non-hazardous transport classification.
Sustainability: Carbon Trust-certified low-carbon production.
FAQs About Lime Slurry
Q1: How is lime slurry stored on‑site?
A: In coated steel or HDPE tanks with gentle recirculation to prevent settling.
Q2: What is the recommended pump type?
A: Progressive cavity or peristaltic pumps to handle fine solids.
Q3: Can slurry concentration be adjusted in the field?
A: Yes—dilution or concentration stations can fine‑tune solids content.
Q4: What is the typical delivery frequency?
A: Weekly or bi‑weekly, depending on consumption rates and storage capacity.
Q5: Do you offer trial quantities?
A: Yes—laboratory and pilot‑scale samples available upon request.
Partner with a Trusted Lime Supplier
As a leading calcium carbonate supplier, Jintai delivers premium lime slurry solutions tailored to industrial needs. Our strengths include:
Custom Formulations: Adjust solids content, particle size, and additives.
Bulk Logistics: Tanker trucks, ISO containers, or silo systems.
Technical Support: On-site system design for dosing and storage.
Request a free trial batch and optimize your operations with Jintai’s high-reactivity lime slurry.
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