ADALKA® Process Stabilizer
ADALKA Process Stabilizer is a gas technology for paper industry needs. In paper and cardboard industries the stability of pulp and of short-cycle processes reduces the number of disruptions during the process stages, improving machine runnability. The ADALKA® Process Stabilizer method increases the stability of pulp and short-cycle processes in a controlled manner and helps obtain conditions that are more stable and more tolerant of disruptions at various process stages. ADALKA® is suited for both mechanical and chemical pulp processes. The ADALKA® method is patented by AGA.
ACU® Alkalinity Control Unit
The patented ACU® Alkalinity Control Unit is used for the on-site production of pH-adjusted sodium bicarbonate in connection with the ADALKA® application. The automated equipment produces liquid sodium bicarbonate from diluted sodium hydroxide and CO2.
The CODIP Process Improver method was developed to mainly serve newsprint paper production, where varying amounts of recycled fibers are used as raw material. The use of CO2 in the paper process helps achieve lower levels of dissolved calcium, increased machine runnability and a more stable pH profile. The patented method was developed in close cooperation with our customers.
The GRAFICO® Calcium Carbonate Saver is a carbon dioxide (CO2) application developed and patented by Linde together with the cooperation partner UPM-Kymmene to be used when CaCO3 is introduced as a filler in the production of paper qualities containing mechanical pulp like newsprint and SC paper. The conditions at the paper machines are often such that CaCO3 starts to dissolve and papermakers are familiar with problems originated from free calcium in the system. GRAFICO® Calcium Carbonate Saver will help to prevent CaCO3 from dissolving due to local pH-changes or slightly acidic conditions and create conditions for more stable process. GRAFICO® is a patented method developed to reduce the dissolution of calcium carbonate in neutral processes using mechanical or deinked pulp. The conditions in the paper process often cause CaCO3 to begin to dissolve, which may lead to runnability problems, precipitations and increased consumption of several chemicals.
The use of CO2 for pH adjustment carries several benefits. AGA’s new environmentally friendly ACTICO® application offers optimal pH adjustment in the wet end of paper process and reduces the risk of pH shocks. Thanks to its sophisticated automation and CO2 input system, ACTICO® can be adjusted to the key process parameters of each paper machine.
The use of CO2 can increase the efficiency of dewatering in paper processes. The patented CO2 application can be used to increase dewatering or improve water cut-off, for example, in the disc filter or wire section.