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Andritz to supply major pulp production technologies and key process equipment for Arauco's pulp mill in Chile

CHILE (News release) -- Andritz has received an order from Celulosa Arauco y Constitución S.A. to supply energy-efficient and environmentally friendly pulp production technologies and key process equipment for modernization and extension of the Arauco pulp mill in Horcones, Arauco, Chile. The order value for Andritz is in the region of Euro 300 million; start-up is scheduled for early in 2021.

The Andritz scope of supply includes - on full EPS (Engineering, Procurement, Supervision) basis:

- A complete wood processing plant with three debarking and chipping lines, one chipping line for forest-debarked wood, chip storage with stacker-reclaimer blending bed system, chip screening, bark handling with BioCrushers, and is completed with HQ-Press bark presses that increase dryness of the bark and consequently the energy efficiency and production of the bio mass boiler.

- A complete fiberline with a capacity of 4,700 admt/d bleached pulp, including Lo-Solids continuous cooking with TurboFeed chip feeding system, brown stock washing with multistage DD-Washers, 2-stage oxygen delignification followed by deknotting, screening, and multistage DD-Washers.

- An energy-efficient black liquor evaporation plant with a high capacity of 1,750 tons/hour. The plant will have a 7+ Effects heat economy system and concentrate black liquor to the high dry solids content of 80% for efficient combustion in the recovery boiler.

- Complete white liquor plant, including efficient green liquor filtration with LimeGreen filters - producing clean green liquor and minimizing waste to landfill, white liquor filtration with LimeWhite filter - maximizing the white liquor quality, and efficient lime mud filtration with two LimeDry filters providing high dry solids content and low residual alkaline.

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