Results 81 to 90 of about 6,920 (226)

Model development for real oxygen delignification processes

open access: yesTAPPI Journal
Previous extensive work has been done on modeling the oxygen delignification process, based on how the basic parameters, i.e., temperature, kappa number, concentration of alkali, and concentration of oxygen, affect the delignification rate. However, these models are not used extensively to evaluate the performance of real processes, primarily because ...
JARI KÄYHKÖ   +4 more
openaire   +1 more source

Policy vs. Consumer Pressure: Innovation and Diffusion of Alternative Bleaching Technologies in the Pulp Industry [PDF]

open access: yes
In the late 1980s and early 1990s, concern over dioxin in both paper products and wastewater led to the development of techniques that reduced the use of chlorine in the pulp industry. Both regulatory and consumer pressure motivated this change.
David Popp   +2 more
core  

Sustainable Synthesis of Bio‐Based Magnetic and Conductive Wood for Electromagnetic Interference Shielding Applications

open access: yesAdvanced Engineering Materials, Volume 28, Issue 5, 4 March 2026.
A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya   +3 more
wiley   +1 more source

Control of Dioxins From the Pulp and Paper Industry Under the Clean Water Act and Lead in Soil at Superfund Mining Sites: Two Case Studies in EPA's Use of Science [PDF]

open access: yes
This paper discusses EPA's acquisition and use of science in addressing dioxins (and other organochlorines) from the pulp and paper industry under the Clean Water Act and lead in soil at large Superfund mining sites.
Powell, Mark
core  

Stimulation of bioprocesses by ultrasound [PDF]

open access: yes, 2011
Ultrasound (US) has become a ubiquitous technological process in a large variety of scientific disciplines. However, little information exists on the use of ultrasound to enhance biological processes and/or processing and consequently this paper provides
Akunna, Joseph C.   +4 more
core   +3 more sources

Strength enhancement of fiber network by carboxymethyl cellulose during oxygen delignification of kraft pulp

open access: yesBioResources, 2008
Sorption of carboxymethyl cellulose (CMC) on the fiber surface was applied during oxygen delignification to enhance the strength properties of softwood kraft pulp.
Eero Kontturi   +2 more
doaj  

Low Temperature Soda-Oxygen Pulping of Bagasse

open access: yesMolecules, 2016
Wood shortages, environmental pollution and high energy consumption remain major obstacles hindering the development of today’s pulp and paper industry. Energy-saving and environmental friendly pulping processes are still needed, especially for non-woody
Fengxia Yue, Ke-Li Chen, Fachuang Lu
doaj   +1 more source

Kinetics of Eucalypt Lignosulfonate Oxidation to Aromatic Aldehydes by Oxygen in Alkaline Medium [PDF]

open access: yes, 2011
The oxidation kinetics of lignosulfonates (LS) from acidic magnesium-based sulfite pulping of Eucalyptus globulus wood with oxygen under alkaline conditions was studied.
Esteves, Valdemar I.   +4 more
core   +1 more source

Влияние состояния TiO2 на окислительную делигнификацию древесины осины и соломы пшеницы [PDF]

open access: yes, 2014
The influence of preparation methods on structural characteristics of TiO2 catalysts was studied by the XRD, SEM, BET, DTA-DSC, FTIR techniques.
Djakovitch, Laurent   +9 more
core  

Changes on content, structure and surface distribution of lignin in jute fibers after laccase treatment [PDF]

open access: yes, 2018
Effect of laccase treatment on the content, structure, and surface distribution of lignin in jute fibers were fundamentally investigated. Four percent lignin was removed from jute fibers via the laccase treatment.
Aixue Dong   +13 more
core   +1 more source

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