How Diethanolisopropanolamine 85% (DEIPA) Enhances Cement Grinding and Performance

Technical Introduction

Diethanolisopropanolamine 85% (DEIPA) is a highly efficient alkanolamine-based grinding aid and strength enhancer widely used in the cement industry. With the molecular formula C7H17NO3 and a high active content of 85%, DEIPA serves as a multi-functional additive that improves cement grinding efficiency, increases early and late compressive strength, and optimizes particle distribution.

As a tertiary amine containing both hydroxyl and secondary amino groups, DEIPA effectively adsorbs onto cement particles, reduces electrostatic attraction, and disperses fine particles. This process improves the flowability of the ground material, resulting in energy savings during milling and enhanced cement quality.

Applications

1. Cement Grinding Aid – Improves grinding efficiency by reducing agglomeration of cement particles.

2. Strength Enhancer – Promotes early hydration of clinker minerals, boosting early compressive strength.

3. Blended Cement – Enhances performance in cements containing fly ash, slag, and other mineral admixtures.

4. Energy-Saving Additive – Reduces mill energy consumption while maintaining high output.

5. Performance Optimizer – Improves setting time control and workability.

Advantages

• High Efficiency – Significantly improves mill productivity.

• Strength Development – Increases both early (1–3 days) and later (28 days) strength of cement.

• Compatibility – Suitable for Portland cement, composite cement, and blended cement systems.

• Environmental Benefit – Low dosage with high performance reduces overall carbon footprint.

• Stable Quality – High purity and consistent chemical composition ensure predictable results.

Typical Parameters

FAQ

Q1: What is the main function of DEIPA in cement production?
A1: DEIPA acts as a grinding aid and strength enhancer, improving cement particle dispersion and hydration efficiency.

Q2: Can DEIPA replace traditional grinding aids like TEA or TIPA?
A2: Yes, DEIPA offers better late strength improvement and is more effective for blended cement formulations.

Q3: Is DEIPA safe to handle?
A3: Yes, when handled according to standard industrial safety procedures, DEIPA is considered safe. Proper PPE is recommended.

Q4: What is the typical dosage in cement grinding?
A4: Usually 0.03–0.08% by weight of cement, depending on clinker type and performance requirements.

Q5: How should DEIPA be stored?
A5: Store in a cool, dry, well-ventilated area away from direct sunlight. Avoid freezing temperatures.