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Environmental pressure causes change in bleaching technologies, chemicals

Pulp & paper, 1991-11, Vol.65 (11), p.110

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Title:
Environmental pressure causes change in bleaching technologies, chemicals
Author: Deal, H. (Jaakko Poyry Inc., Raleigh, NC)
Subjects: BLANCHISSEMENT ; BLANQUEADURA ; BLEACHING ; Changes ; Chemicals ; Disadvantages ; Environmental impact ; ESTADOS UNIDOS DE AMERICA ; ETATS UNIS ; Operating costs ; Paper industry ; PASTA ; PATE CELLULOSIQUE ; Production planning ; PULP ; Pulp & paper industry ; Pulp mills ; TECHNOLOGIE DU BOIS ; TECNOLOGIA DE LA MADERA ; USA ; WOOD PULP ; WOOD TECHNOLOGY
Is Part Of: Pulp & paper, 1991-11, Vol.65 (11), p.110
Description: Any modifications to the bleach line layout should maintain the goal of high brightness per consumer demands. Two main areas of discussion stem from this line of thinking: 1. technologies currently applied or suitable for inclusion in a bleaching sequence based on prior mill experiences, and 2. technologies still on the drawing board or in laboratories. The current tendency indicates the elimination of chlorine from the bleach cycle and possibly the total elimination of chlorine dioxide in the future. A combination of oxygen delignification, ozone, peroxide, high-pressure oxygen extraction, and hydrosulfate use may offer the best potential for eliminating elemental chlorine.
Publisher: San Francisco: RISI, Inc
Language: English
Identifier: ISSN: 0033-4081
CODEN: PUPAA8
Source: AUTh Library subscriptions: ProQuest Central

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