Metso's scope of supply covers a complete recausticizing plant comprising a clarifier, a decanter centrifuge, a green liquor cooler, a slaker, causticizers, a PDW filter (pressure disc filter for white liquor) and storage tanks. The new recausticizing plant is designed for 7,000 m³ of white liquor per day. The delivery also includes basic and detail engineering for piping, erection and start-up.
The new recausticizing plant will lower the maintenance costs and improve the efficiency and environmental performance at the Metsä-Botnia Kemi mill and will be the first recausticizing plant to be delivered by Metso to Finland.
Oy Metsä-Botnia Ab is part of the Metsäliitto Group. UPM-Kymmene Corporation owns 17 % of Metsä-Botnia. Metsä-Botnia operates four mills in Finland and is one of Europe's top producers of chemical pulps. The production capacity of the Kemi mill is approximately 590,000 tons of kraft pulp per year, the total production of Metsä-Botnia being approximately 2.4 million tons per year.