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Effects of Neutralization of Recovery Boiler Ash in Ash Leaching, 2008 Engineering, Pulping and Environmental Conference

Effects of Neutralization of Recovery Boiler Ash in Ash Leaching, 2008 Engineering, Pulping and Environmental Conference

Sodium and Sulfur Process Chemistry in Black Liquor Gasification and Combustion - Review and Reevaluation of Basic Thermochemical Data, 2004 International Chemical Recovery Conference

Sodium and Sulfur Process Chemistry in Black Liquor Gasification and Combustion - Review and Reevaluation of Basic Thermochemical Data, 2004 International Chemical Recovery Conference

Non-Process Elements in a Bleached Kraft Pulp Mill with Increased System Closure, 1996 Minimum Effluent Mills Symposium Proceedings

Non-Process Elements in a Bleached Kraft Pulp Mill with Increased System Closure, 1996 Minimum Effluent Mills Symposium Proceedings

Journal articles
Open Access
The effect of Stachys floridana Shuttlew.ex Benth extract as an additive on the chemical properties of chitosan biodegradable film, TAPPI Journal June 2025

ABSTRACT: The purpose of this study is to explore chitosan with Stachys floridana Shuttlew. ex Benth (SFSB) extract as an additive to prepare an active film. The effects of the SFSB extract on the physical, antioxidant, and bacteriostatic properties of chitosan biodegradable films were studied. The results showed that the addition of SFSB extract significantly improved the antioxidant and antibacterial properties of the film, and its biodegradation rate increased rapidly. Compared to the control film, the water solubility was lower at 19.40%, the expansion degree was higher at 288.90%, the water vapor permeability (WVP) was 0.364 g·mm/(m²·d·kPa), the surface hydrophobicity increased, and the mechanical strength was also improved. The contact angle increased to 89.3°. In addition, as the amount of SFSB increased, the thermal stability of chitosan-Stachys floridana Shuttlew. ex Benth (CS-SFSB) films also increased significantly, and their ultraviolet (UV) blocking ability was gradually enhanced. The results indicate that CS-SFSB has potential as a food packaging material.

Journal articles
Magazine articles
Open Access
Optimizing OCC refining with defloccing, TAPPI Journal April 2025

ABSTRACT: Subjecting pulp to a high shear zone immediately after refining results in more efficient refining. This phenomenon was originally observed to benefit softwood pulp refining. It was attributed to floc reduction based on floc measurements in mill refiners and the observation of reduced headbox plugging. Hence, this phenomenon has been termed “defloccing.” The present work shows this technology also benefits refining of North American old corrugated containers (OCC). The combined results of several mill trials with OCC defloccing demonstrate the interactions between OCC refining intensity, defloccing technology, and other state-of-the-art refining improvements. At the same refining intensity, defloccing OCC on 100% recycled machines increases OCC refining efficiency by 15%, with greater efficiency improvement on machines that use softwood as well as OCC. Furthermore, it is shown that the benefits of defloccing are additive to refining improvements made in the refining zone of a refiner plate. Most OCC refiner plate designs can therefore benefit from the addition of a defloccing feature.