Stable pH is essential in papermaking to prevent a variety of problems, including the dissolution of calcium carbonate (CaCO3).
We developed our patented ADALKA® process stabiliser solution to stabilise pH in the papermaking process. Carbon dioxide (CO2) and caustic soda (NaOH) react with each other, forming a buffering solution, which is added to the papermaking process to stabilise pH, increase alkalinity and reduce dissolved calcium levels.
The buffering solution is typically produced on site in our ADALKA alkalinity control unit (ACU). A growing number of mills worldwide are relying on ADALKA process stabiliser for process improvements.
Benefits at a glance
• Improved pH stability
• Fewer deposits, spots/holes and breaks in the paper
• Improved brightness
• Reduced need for paper chemicals (retention aids, defoamers, etc.)
• Less dissolution of calcium carbonate (CaCO3)
• Savings in refining energy