Skip to Main Content
  • English 
  • Français 
  • Linde Worldwide
  • The Linde Group
  • About Linde
  • Careers
  • Emergency Response 905-501-0802
  • Industrial Gases
    Canada

  • Home
  • Industries
      • Aerospace & Defense
      • Chemicals
      • Construction & Infrastructure
        • Construction
        • Heating, Ventilation & Air Conditioning (HVAC)
        • Heavy Machinery
        • Offshore
        • Pipelines
        • Wind, Wave & Tidal
      • Electronics
        • Semiconductor
        • Display
        • Solar
        • LED
        • Contact the Linde Team
      • Food & Beverage
        • Beverage
        • Dairy
        • Dry Foods & Bakery
        • Edible Oils & Fats
        • Fish & Seafood
        • Fruit & Vegetables
        • Meat
        • Prepared Foods
      • Glass
      • Hospitality
        • Beverage Gases
        • Food Packaging Gases
        • Balloon Gas
      • Laboratories
        • Air Quality Monitoring
        • Analysis & Measurement
        • Automotive Laboratories
        • Biological Growth Control
        • Car Exhaust Testing
        • Chemicals Production
        • Emission Trading
        • Environmental Protection
        • Petrochemical Processing
        • Pharmaceutical & Biotechnology
        • Power Generation
        • Process Control
        • Soil and Water Measurement
        • Solvent & VOC Monitoring
      • Lighting Gases
      • Medical
        • MRI
      • Metal Fabrication
      • Metals
        • Aluminium
        • Iron Foundries
        • Steel
      • Petrochemicals & Refining
      • Pharmaceutical Solutions
      • Plastics
      • Power & Energy
        • Biofuels
        • Hydrogen Energy
        • Liquefied Natural Gas
        • Upstream Oil & Gas
      • Rubber
      • Pulp & Paper
      • Rubber & Plastics
      • Transport
        • Aerospace & Defense
        • Automotive
        • Rail
        • Shipbuilding
        • Trucking
      • Windows
  • Products & Supply
      • Bulk Industrial Gases
        • Air-Ware Telemetry Technology
      • Cylinder Industrial Gases
        • MISON Shielding Gases
      • Detectors
      • Dry Ice
      • Edwards Vacuum Pumps
        • Edwards Products
        • Services
        • Promotions
      • Electronic Special Gases
        • Lithography Gases
      • Food Chilling
        • ACCU-CHILL
        • CO2 Snow Generating Equipment
        • Dry Ingredient Chilling System
        • Pelletizers
        • In-Transit Refrigeration
      • Food Freezing
        • Linde CRYOLINE Family
        • High Capacity Freezers
        • Specialty Application Freezers
        • Spiral Freezers
        • Tunnel Freezers
      • Food Grade Gases
      • Fuel Gases
        • Acetylene
        • Hydrogen
        • Propylene
      • Fumigants
      • HCl
      • Liquefied Natural Gas
      • Packaged Chemicals
        • Material Data
      • Pharmaceutical Solutions
        • Fluid Temperature Control
        • Vapor Emission Control
      • Refrigerants
      • Specialty Gases
        • High Purity Gases
        • Gas Mixtures
        • Portable Specialty Gases
        • Rare Gases
        • Quality & Safety
        • Services
        • Industries
        • Downloads & Catalogs
        • Tools
      • Supply Modes
        • Cylinders
        • Bulk Supply
        • Drum Tanks
        • ECOVAR Onsite Solutions
        • HyCO Plants
        • Onsite Air Separation Plants
        • Pipelines
        • Reclaim & Recovery
        • Retrofit Technical Advice
        • Supply Reliability
      • Water Treatment
      • Welding and Safety Products
        • Arc Equipment & Accessories
        • Cutting & Welding Equipment
        • Gas Equipment
        • Trade Tools
        • Welding Consumables
        • Welding & Safety Hardware Catalogue
        • Welding & Safety Products Promotions
  • Services
      • Accessibility
      • e-Billing
      • Individual Cylinder Control (ICC)
      • WebShop
  • Health & Safety
      • On-Alert Emergency Response
      • SDS
        • Linde Gases
        • Equipment
      • Product Stewardship
      • Caring for the Environment
      • Vision and Policy
  • Innovations
      • ADROIT
      • Environmentally Sound Gas Applications
      • GENIE Interactive guide
        • OLD GENIE
      • Hydrogen Energy
      • e3 Tungsten Electrodes
      • Water Treatment
  • News & Media
      • Press Services
      • Press Releases
        • Linde Canada to Highlight MAP Solution at Packaging Ideas Expo
      • Linde @ Social Media
        • Facebook
        • Twitter
        • YouTube
        • Google+
        • LinkedIn
        • Miscellaneous
      • Events
        • Events Archive
        • Upcoming Events
      • Publications
      • Linde Apps
        • Investor Relations App
        • C-Pot
        • Gas Converter
        • Gas distribution partner-search
        • Fascinating Gases
      • Video
      • Media Contact
  • Contact & Support
      • Addresses & Phone Numbers
      • Linde Store Locations
      • Contact Form
      • Feedback
  •  
  • Language
    • English
    • Français
  • Linde Worldwide
  • The Linde Group
  • About Linde
  • Careers
  • Emergency Response 905-501-0802
  • Industries
  • Aerospace & Defense
  • Chemicals
  • Construction & Infrastructure
  • Electronics
  • Food & Beverage
  • Glass
  • Hospitality
  • Laboratories
  • Lighting Gases
  • Medical
  • Metal Fabrication
  • Metals
  • Petrochemicals & Refining
  • Pharmaceutical Solutions
  • Plastics
  • Power & Energy
  • Rubber
  • Pulp & Paper
  • Rubber & Plastics
  • Transport
  • Windows
  • Industries
  • Pulp & Paper
  • Ozone Delignification/Bleaching

Ozone Delignification/Bleaching

Advantages with ozone as a bleaching agent:

  • A powerful oxidant already at low temperature

  • Fast reactions, a short retention time (as a small reactor) is sufficient

  • Possibility of recycling filtrates to chemical recovery

  • Efficient delignification of all types of chemical pulps.

Ozone was introduced as a bleaching chemical on industrial scale in the beginning of the 1990s. The primary driving force was to achieve full pulp brightness without using of chlorine containing chemicals. Today ozone is used in both TCF and ECF bleaching. Since ozone is a powerful bleaching agent it means reduced consumption of other bleaching chemicals.

Ozone is produced on site through silent electrical discharge in a gas stream containing oxygen. Ozone quantities required for pulp bleaching (typically 1-10kg/Adt), are most economically produced from oxygen. The feed gas should be essentially free from water and organic compounds. Today the upper practical limit of ozone concentration is about 13%.
Any Questions? Contact Us.
Air Seperation Unit, Leuna (Germany)

1-888-256-7359

Contact Form

Safety advice - call (905) 501-0802 24-hours a day. Scientific customer service call 1-866-385-5349. Hospitality call 1-866-262-7554.

Related Links
  • ADALKA® Process
  • Bleaching of Chemical Pulp
  • CODIP Process Improver
  • GRAFICO® Calcium Carbonate Saver
  • Lime Kilns
  • Oxygen Delignification
  • Oxygen Reinforced Alkaline Extraction
  • Oxygen Reinforced Peroxide Bleaching
  • Ozone Delignification/Bleaching
  • Black Liquor Oxidation
  • Water Treatment
  • White Liquor Oxidation
Downloads
Gas Applications for the Pulp and Paper Industry(PDF 483.0 KB)
    • Visit us on Facebook
    • Visit us on LinkedIn
    • Follow us on Twitter
    • Visit us on YouTube
    • Hang out with us on Google+
    • Accessibility Policy
    • Terms of Use
    • Legal Notice
    • Data Protection
    • Cookie Policy
  • © The Linde Group 2018