Ion exchange for chloride and potassium removal in kraft mills
Optimize your kraft mill operations by efficiently removing corrosive chlorides and potassium from waste streams, reducing costly shutdowns and improving chemical recovery in pulping processes.

Removes Chloride and Potassium from Mill Processes
The PDP™, PRU, and GAP Ion Exchange Systems from Kovalus Separation Solutions are specialized for enhancing Kraft mill operations. These systems efficiently remove chlorides and potassium from production streams, reducing corrosion risks and minimizing unnecessary shutdowns. Utilizing precise ion exchange resins, the equipment recovers valuable chemicals, optimizing both resource use and cost-effectiveness in pulp and paper manufacturing.
Designed for continuous operations, these systems work seamlessly within existing production environments, integrating with other purification processes such as membrane filtration and drying systems. Tailored to handle liquid and slurry products, they feature PLC-controls for sophisticated operations and remote monitoring to facilitate process oversight.
These ion exchange solutions excel in extracting impurities while boosting throughput, particularly in demanding environments like chlorine dioxide generators and electrostatic precipitator dust management. With options for different material compositions, they ensure robust performance against corrosive process conditions, and customizable features address specific plant requirements.
Kovalus offers comprehensive engineering and support services, providing you with the necessary adaptability and technical guidance to maintain compliance and streamline maintenance efforts. Suitable for various industries, from pulp and paper to general industrial applications, these systems are ideal for facilities seeking sustainable and efficient operations.
Benefits
- Minimizes downtime and maintenance costs by preventing corrosion-related shutdowns.
- Increases chemical recovery and reduces the need for costly raw material purchases.
- Enhances operational efficiency by selectively removing corrosive elements like chlorides and potassium.
- Saves energy through optimized ion exchange processes under specific operating conditions.
- Supports sustainable practices by reducing waste and emissions in production streams.
- Applications
- Electrostatic precipitator dust,Kraft mill operations,Ash solution,Pulp,Paper,Chlorine dioxide generators
- End products
- Bleached pulp,Electrostatic precipitator dust removal waste,Chlorine dioxide,Kraft paper,Potassium-depleted ash solution
- Steps before
- Purification,Ash Collection,Chemical Preparation
- Steps after
- Chloride Removal,Potassium Level Control,Sulfuric Acid Separation
- Input ingredients
- wood chips,caustic,generator spent acid,potassium salts,chlorine dioxide generators,sulfuric acid solution
- Output ingredients
- chloride removal,potassium removal,cooking chemicals recovery,chlorine dioxide,reduced caustic and sulfuric acid purchases,sodium sulfate separation
- Market info
- Kovalus Separation is known for manufacturing industrial engineered-to-order (ETO) separation equipment, specializing in tailored solutions for complex filtration and separation needs, with a strong reputation for innovation, quality, and reliability in various industries.
- Chloride Removal
- Selective removal from ESP dust
- Potassium Removal
- Selective removal from ash solution
- System Type
- Ion Exchange
- Operating Conditions
- Specific to ion exchange processes
- Footprint
- Smaller footprint
- Cost Reduction
- Reduced operating costs
- Capital Cost
- Significantly lower
- Working mechanism
- Ion exchange
- Integrated steps
- Chloride and potassium removal
- CIP/SIP
- Selective removal of specific ions
- Batch vs. continuous operation
- Continuous
- Energy efficiency
- Cost-effective chemical recovery
- Automation level
- Automated under specific conditions
- Cleaning method
- Ion exchange system cleaning
- Footprint
- Smaller footprint
- Density/particle size
- 0.5–2.5 g/cm³ / 50–1000 µm
- Kraft mill applicability
- Yes
- Electrostatic precipitator ash handling
- Yes
- System Footprint
- Compact footprint
- Resin Type
- Ion Exchange Resin
- System Configuration
- Precipitator Dust Purification System
- Discharge Method
- PDP/PRU/GAP Ion Exchange
- Control Panel Type
- Smart System (SepTrac™)
- Control panel type
- PLC / HMI
- Integration possibilities
- SCADA / DCS Compatible
- Footprint
- Compact / Modular
- System Scalability
- Expandable / Modular Design
- Operation mode
- Automatic / Semi-automatic
- Material construction
- Stainless Steel / Custom Alloy