Results 21 to 30 of about 35,476 (250)

Comparison on the characteristics of Salix nigra Kraft and Soda pulp and paper [PDF]

تحقیقات علوم چوب و کاغذ ایران, 2014
In this study pulp and hand sheets paper characteristics of Salix nigra wood kraft and soda pulp and paper were investigated. Average density of dry and bulk density wood were determined 0.35 and 150 kg/m3 and average fiber dimension consist of fiber ...
Lila Karami motaghi, Hossein Hosseinkhani, Fardad Golbabaei   +2 more
doaj   +1 more source

The Effect of Cellulose Nanofibres on Dewatering during Wet-Forming and the Mechanical Properties of Thermoformed Specimens Made of Thermomechanical and Kraft Pulps

Nanomaterials, 2023
Due to environmental concerns regarding single-use plastic materials, major efforts are being made to develop new material concepts based on biodegradable and renewable resources, e.g., wood pulp. In this study, we assessed two types of wood pulp fibres,
Eirik Ulsaker Jacobsen, Simen Prang Følkner, Jørgen Blindheim, Dag Molteberg, Martin Steinert, Gary Chinga-Carrasco   +5 more
doaj   +1 more source

Evaluation and Optimization of Kraft Delignification and Single Stage Hydrogen Peroxide Bleaching for Ethiopian Sugarcane Bagasse

Journal of Natural Fibers, 2022
The current study investigated the Ethiopian sugarcane bagasse during its delignification using the Kraft pulping process and bleaching by single stage hydrogen peroxide process.
Medhanit Mamaye, Zebene Kiflie, Sisay Feleke, Abubeker Yimam   +3 more
doaj   +1 more source

Enzymatic Hydrolysis of Kraft and Sulfite Pulps: What Is the Best Cellulosic Substrate for Industrial Saccharification?

Fermentation, 2023
Sulfite and kraft pulping are two principal methods of industrial delignification of wood. In recent decades, those have been considered as possibilities to pretreat recalcitrant wood lignocellulosics for the enzymatic hydrolysis of polysaccharides and ...
Aleksandr R. Shevchenko, Ksenia A. Mayorova, Dmitry G. Chukhchin, Alexey V. Malkov, Evgeniy A. Toptunov, Vadim D. Telitsin, Aleksandra M. Rozhkova, Ivan N. Zorov, Maria A. Rodicheva, Vadim A. Plakhin, Denis A. Akishin, Daria N. Poshina, Margarita V. Semenova, Andrey S. Aksenov, Arkady P. Sinitsyn   +14 more
doaj   +1 more source

Improvements in pulp properties by alkali preextraction and subsequent kraft pulping with controlling H-factor and alkali charge [PDF]

BioResources, 2012
The objective of this study was to determine the processing conditions for obtaining improved pulp properties from the kraft pulping process with an alkali pre-extraction stage.
Kyujeong Sim, Hye Jung Youn, Hwi Cho, Heenae Shin, Hak Lae Lee   +4 more
doaj  

Enlarging the Product Portfolio of a Kraft Pulp Mill via Hemicellulose and Lignin Separation – Process Integration Studies in a Case Mill

Chemical Engineering Transactions, 2013
Increased energy and raw material prices along with contracting markets for kraft pulp, have highlighted the need for the pulp industry to enlarge their traditional product portfolio with new value-added products via the implementation of biorefinery ...
V. Lundberg, J. Bood, L. Nilsson, M. Mahmoudkhani, E. Axelsson, T. Berntsson   +5 more
doaj   +1 more source

Ozone Bleaching of Kraft Pulp

JAPAN TAPPI JOURNAL, 1997
Recently, one of the greatest concerns of the world wide pulp and paper industries has been organo-chloro compounds discharged from bleach plants which use chlorine based bleaching chemicals. Although there are some debates on toxicities of organo-chloro compounds, we can find a distinct tendency in developing kraft pulp bleaching technologies which ...
Kengo Magara, Isao Takano, Shuji Hosoya
openaire   +2 more sources

Mutagenicity of Tectona grandis Wood Extracts and Their Ability to Improve Carbohydrate Yield for Kraft Cooking Eucalyptus Wood

Molecules, 2021
Considering the toxicity of the impurities of synthesized anthraquinone, this study clarified new catalytic compounds for kraft cooking with improved carbohydrate yield and delignification and less mutagenicity, which are important for ensuring the ...
Yulia Anita, Syelvia Putri Utami, Hiroshi Ohi, Evelyn Evelyn, Akiko Nakagawa-Izumi   +4 more
doaj   +1 more source

Effects of a poly(hydroxyalkanoate) elastomer and kraft pulp fibres on biocomposite properties and three-dimensional (3D) printability of filaments for fused deposition modelling

Journal of Bioresources and Bioproducts, 2022
Three-dimensional (3D) printing is a useful technique that allows the creation of objects with complex structures by deposition of successive layers of material. These materials are often from fossil origin.
Sandra Rodríguez-Fabià, Gary Chinga-Carrasco   +1 more
doaj   +1 more source

THE COMPARISON ON PULPING OF P.AUSTRALIS [PDF]

تحقیقات علوم چوب و کاغذ ایران, 2006
The common reed, P.australis, covers vast region in south of Iran. Specially, there is possibility of executing harvest in Hoor-Alazim canebrake as a reed natural provenance.
Saeed Mahdavi, masoudreza habibi, Kamyar Salehi, Hossein Familian, kermanian hossein   +4 more
doaj   +1 more source