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Stock preparation

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With ABB, you gain optimized quality in preparation, excellent dosing accuracy and repeatability, automation specifically dedicated to your requirements.
De-inking
Wet-end
Continuous ASA emulsification
Cationic starch conversion

De-inking chemical supply systems


Chemical process adding alkali and detergents remove the printing inks and increase the whiteness and purity of new "grades" of pulp.
Deinking and bleaching additives
  • Sodium silicate
  • Sodium hydroxide
  • Hydrogen peroxyde
  • Sodium hydrosulfite
  • Soap and foaming agents
  • Calcium chlorure
  • EDTA
  • Dithionite
  • FAS
  • Sulphuric acid
Waste water treatment
  • Coagulant
  • Flocculant
  • Micro particules

Wet-end chemical supply systems


Stage consisting of adding auxiliary chemicals and additives to the stock to control process efficiency and improve paper properties.
Product additives
  • Fillers
  • Cationic starch
  • Internal sizing agents
  • Dry-strength agents
  • Wet-strength agents
  • Dyes and colour pigments
  • Fluorescent whitening agents
Process additives
  • Drainage agents and retention aids
  • Pitch control chemicals
  • Defoamers
  • Slimicides
  • Deposit control agents
  • Speciality chemicals for boil out

Continuous ASA emulsification unit


Alkenyl succinic anhydride is one of the most frequently used additives in wet end chemistry. 

The ASA emulsifier is a continuous preparation system designed to emulsify ASA with cationic starch and deliver the emulsion directly to the paper machine. 

Application
High quality size emulsification with all polymers, modified starches and cooked starch chemistries. 

Benefits
  • Continuous output capacity
  • Emulsion with homogeneous particle size distribution.
  • Automatic delivery flow-rate adjustment according to paper machine consumption.

Cationic starch conversion unit


Cationic starches are used as retention aids and dry-strengh additives to improve paper strength properties and drainability.

ABB starch jet cooker with its in-line high-efficiency steam heater ensures the complete cooking of slurries of cationic starch by a uniform heating with minimal pressure drop.

Application
Wet end starch cooking. For all types of cationic starches: corn, potato, tapioca, wheat, maize, etc.

Benefits

  • Easy installation and operation
  • Excellent end-product quality
  • Smooth operation
  • Low operational costs