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Journal articles
Open Access
Theoretical Drying Study of Single-Tier Versus Conventional

Theoretical Drying Study of Single-Tier Versus Conventional Two-Tiered Dryer Configurations, 1992 Engineering Conference Proceedings

Journal articles
Open Access
Electrochemical Removal of Color and Toxicity from Bleached

Electrochemical Removal of Color and Toxicity from Bleached Kraft Effluents, 1994 Environmental Conference Proceedings

Journal articles
Open Access
Progressive Deformation at the Crack Tip in Paper During Mod

Progressive Deformation at the Crack Tip in Paper During Mode 1 Fracture (Part 1 Bond Paper), 1991 International Paper Physics Conference Proceedings

Journal articles
Open Access
Studies of Anisotropic Permeability with Applications to Wat

Studies of Anisotropic Permeability with Applications to Water Removal in Fibrous Webs, 1992 Nonwovens Conference Proceedings

Journal articles
Open Access
Current Pulp Production in Japan and its Research and Techno

Current Pulp Production in Japan and its Research and Technological Topics, 1994 International Pan Pacific Conference Proceedings

Journal articles
Open Access
CTMP in Fine Papers: On-Machine Surface Treatments for Impro

CTMP in Fine Papers: On-Machine Surface Treatments for Improved Brightness Stability, 1991 Papermakers Conference Proceedings

Journal articles
Open Access
Pulping and Papermaking Properties of Managed Second-Growth

Pulping and Papermaking Properties of Managed Second-Growth Softwoods, 1995 Pulping Conference Proceedings

Journal articles
Open Access
Tailoring Fiber Properties to Paper Manufacture: Recent Deve

Tailoring Fiber Properties to Paper Manufacture: Recent Developments, 1995 Pulping Conference Proceedings

Journal articles
Open Access
Reducing aox by increasing oxidation potential in the first caustic extraction stage, TAPPI Journal December 2024

Authors: Peter W. Hart and Jeffrey S. Hsieh | Tappi J. 74(11): 117(1991) - ABSTRACT: An increase in the standard oxidation potential of the reinforcing agent in the first caustic extraction stage will reduce the amount of AOX in the stage's effluent. A chlorinated broumstock pulp was treated alternatively in a basic caustic extraction (E) stage, an oxygen-reinforced caustic extraction (EO) stage, and an extraction stage reinforced with oxygen and peroxide (EOP). An AOX reduction of up to 30% was obtained in the effluent from the peroxide-reinforced extraction stage. In addition to the brownstock work, using two different model lignin compounds, we ran tests using oxyen, potassium permanganate, hydrogen peroxide with oxygen, and ozone with oxygen-reinforced caustic stages. In all cases, increasing the oxidation potential of the reinforcing agent decreased the amount of AOX detected in the effluent.

Journal articles
Open Access
Production of high yield bleached hardwood kraft pulp: Breaking the kraft pulp yield barrier,TAPPI Journal December 2024

Author: Peter W. Hart | TAPPI J. 10(9): 37(2011) - ABSTRACT: A modified kraft pulping process has been developed that successfully breaks the traditional hard-wood kraft pulp yield barrier. The process produces fully bleached, high brightness hardwood kraft pulp with a yield of greater than 53% on wood. Details of the development and processing steps, along with various recovery cycle impacts, are discussed.

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