Description

Overview of Calcium Chloride

Calcium chloride is a versatile industrial chemical widely used across de-icing, dust control, drying agents, oil & gas, construction, and chemical processing industries.

Depending on hydration state and application requirements, calcium chloride is commercially available in multiple forms:

• Calcium chloride solution

• Calcium chloride hexahydrate (CaCl₂·6H₂O)

• Calcium chloride tetrahydrate (CaCl₂·4H₂O)

• Flake calcium chloride dihydrate (CaCl₂·2H₂O)

•Anhydrous calcium chloride (powder or granule form)

Among these, calcium chloride dihydrate flakes (74–80% purity) are one of the most widely used and commercially valuable products due to their stability, handling convenience, and broad applicability.

Challenges in Flake Calcium Chloride Dihydrate Production 

Producing high-quality flake or granule calcium chloride requires advanced process control due to its unique physical and thermodynamic behavior.

Key Technical Challenges

(1) Phase transition and stickiness during drying

Calcium chloride exhibits a unique “melting-like” behavior during heating. As temperature increases, it partially dissolves in its own crystalline water, leading to softening, agglomeration, and lump formation.

Without precise control, product quality and flowability are severely affected.

(2) High dehydration and concentration temperature requirements

To form stable flakes, the solution must be concentrated close to saturation at elevated temperatures (around 170°C under atmospheric conditions).

This demands:

• High-efficiency evaporation system

• Accurate temperature and concentration control

• Stable crystallization conditions for uniform flake formation

(3) Complex thermal behavior 

Unlike conventional drying systems, calcium chloride processing involves both free water evaporation and bound (crystalline) water transformation.

This requires advanced engineering consideration of:

• Heat of vaporization

• Phase transition enthalpy

• Crystal structure behavior

• Coupled heat and mass transfer mechanisms

Advanced Flake Calcium Chloride Production System   

Our integrated production plant is designed to deliver stable, continuous, and fully automated manufacturing of high-quality calcium chloride products.

Complete Process Solution

1. Hybridd Evaporation System

Efficiently concentrates calcium chloride solution to 68–70 wt%, maximizing energy utilization while ensuring stable operation under high-salinity conditions.

2. Rotary Drum Flaker System

Transforms concentrated liquor into uniform wet flakes through controlled solidification technology, ensuring consistent particle formation and excellent product appearance.

3. Fluidized Bed Drying System

Advanced drying technology enables continuous product output of Calcium chloride dihydrate flakes (approx. 74–78%)

All with precise moisture control and superior product stability.

4. Automatic Packaging System

Fully integrated weighing and packing system, switchable between 25/50 kg bag and jumbo bag. 

Key Advantage of the System 

Fully Automated Operation

From evaporation to final packaging, the entire process is fully automated—minimizing human intervention and ensuring stable continuous production.

Reduced Labor & Improved Working Environment

Eliminates manual handling in drying and feeding operations, significantly reducing operator workload and improving plant safety and hygiene.

Advanced Emission & Dust Control

Multi-stage washing and demisting systems are installed at all vent points, ensuring:

• High-efficiency dust capture

• Material recovery optimization

• Full compliance with environmental standards

Simple, Reliable & Low Maintenance Design

Compact process layout with fewer operating points ensures:

• Higher system reliability

• Lower maintenance requirements

• Reduced downtime

Compact Footprint & Lower Investment

Highly integrated design significantly reduces plant footprint and overall capital investment, making it ideal for both new projects and capacity expansion.

Summary

This calcium chloride production system delivers a highly efficient, fully automated, and flexible manufacturing solution, enabling producers to achieve:

• Stable high-quality output

• Lower operating cost

• Strong environmental performance

• Excellent return on investment

Inquiry Us