- Complete pulp mills
- Chemical pulping
- Wood handling
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Cooking and fiber line
- Cooking
- Screening
- Washing
- Oxygen delignification
- Bleaching
- Services for cooking and fiberline
- Pulp drying
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Chemical recovery
- Evaporators
- Recovery boilers
- White liquor plant
- Process support and optimization
- Rebuilds and upgrades
- Heat and power production
- Services for chemical recovery
- Air emission control
- Other value-adding processes
- Dissolving pulping
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Mechanical pulping
- Chip washing
- Chip treatment
- Refining and grinding
- Steam separation
- Washing
- Bleaching
- Screening and cleaning
- Services for Mechanical pulping
- Recycled fiber
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Automation for pulp
- Analyzers and measurements
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APC Advanced Process Controls
- Valmet WinGEMS
- Valmet Debarking Optimizer
- Valmet Batch Cooking Optimizer
- Valmet Continuous Cooking Optimizer
- Valmet Washing Line Optimizer
- Valmet Oxygen Stage Optimizer
- Valmet Bleaching Optimizer
- Valmet Evaporation Optimizer
- Valmet Recovery Boiler Optimizer
- Valmet Recovery Boiler Leak Detector
- Valmet Recovery Boiler Sootblowing Optimizer
- Valmet Causticizing Optimizer
- Valmet Lime Kiln Optimizer
- Valmet Recovery Line Management
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AQC Advanced Quality Controls
- TMP Predictive Quality Controller
- TMP Specific Energy Optimizer
- Paper Machine Blend Controller
- Paper Brightness Optimizer
- Power Contract Optimization
- Paper Quality Software Sensors
- Paper Quality Real Time Optimizer
- Sensor Validation
- IMonitor Performance Monitor
- Ponderosa Pulp Quality Software Sensors
- IMAS Process Control Data Server
- Mill information management
- Distributed control systems
- Quality management
- Boiler Diagnostics Systems
- Services for pulp
- Fiber Technology Center
- Pulp
- Mechanical pulping
- Bleaching
- OptiBright bleaching
OptiBright bleaching
For producers of high-quality printing papers, superior visual appearance is the key to satisfying customer needs. The high brightness of mechanical pulp provides a final product with improved printability and high opacity.
Valmet’s proven OptiBright bleaching systems produce mechanical pulps with maximum brightness for the highest quality printing papers with low chemical consumption and minimized environmental load.
Long experience of peroxide bleaching
Valmet has focused on bleaching research and development for more than 50 years and has become the leading supplier of environment-friendly chemical-pulping processes, including totally chlorine-free (TCF) and elemental chlorine-free (ECF) bleaching.
In mechanical pulping, we have extensive experience of peroxide bleaching processes for all types of mechanical pulps, such as TMP, CTMP and PGW. Backed by this experience, our mechanical pulp bleaching systems represent an investment in extensive process know-how and long-term customer support.
Washing
As a consequence of the alkaline conditions, bleaching with peroxide increases the amount of dissolved solids. Accordingly, washing of the pulp after bleaching is of great importance to paper machine operating performance. Our recommendation is to install a wash press after the high-consistency bleach tower. The payback time of a wash press is less than a year based on increased paper machine efficiency and lower use of paper chemicals.
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