Results 71 to 80 of about 280,068 (258)

DISPLACEMENT WASHING OF KRAFT PULP WITH VARIOUS CONSISTENCY

Cellulose Chemistry and Technology, 2020
The paper deals with the displacement washing of kraft softwood and hardwood pulps with various consistency of the pulp fibre bed. The results obtained revealed differences between the two types of kraft pulp with various morphological properties of fibres. The washing efficiency decreased with decreasing Péclet number for both kraft pulps, but, due to
Potůček, František, Rahman, Md. Mostafizur, Miklík, Jozef   +2 more
openaire   +2 more sources

On the Origins of Out‐of‐Plane Auxetic Response in Paper

physica status solidi (b), Volume 263, Issue 5, May 2026.
Paper can be auxetic! Paper can exhibit a range of out‐of‐plane Poisson's ratio (PR) values. Examining handsheets made from hardwood (HW) and softwood (SW) fibers, of a variety of weights (1, 3, or 5 g) and refining degrees (none, R, or R+), showed that the sign and magnitude of PR can be finely controlled by modifying network parameters.
Prateek Verma, Anselm C. Griffin, Meisha L. Shofner   +2 more
wiley   +1 more source

Toward pulping process for enhancing the RS-black liquors as precursor of activated carbons for aqueous adsorbent purposes

Scientific Reports, 2023
This work deals with providing a green pulping process of rice straw with zero waste discharged, via valorization of its by-product as a promising precursor for production of carbon nanostructures.
Vivian F. Lotfy, Zhichao Bao, Xuesong Zhou, Altaf H. Basta, Shiyu Fu   +4 more
doaj   +1 more source

Modification of the lignin structure during alkaline delignification of eucalyptus wood by kraft, soda-AQ, and soda-O2 cooking [PDF]

, 2015
11 páginas.-- 5 figuras.-- 4 tablas.-- 50 referencias.-- Supporting Information The general conditions for the kraft, soda-AQ, and soda-O2 alkaline cooking of eucalyptus feedstock, are shown in Table S1.
Berbís, Manuel Álvaro, Colodette, Jorge Luiz, Gutiérrez Suárez, Ana, Jiménez-Barbero, Jesús, Liitiä, Tiina, Martínez, Ángel T., Prinsen, Pepijn, Rencoret, Jorge, Río Andrade, José Carlos del, Tamminen, Tarja   +9 more
core   +2 more sources

From Hemp Bast to Lyocell Fiber: Sustainable Process Optimization for Lyocell‐Grade Dissolving Pulp

Journal of Applied Polymer Science, Volume 143, Issue 16, April 20, 2026.
This study presents a sustainable method to produce lyocell‐grade dissolving pulp from Canadian hemp bast fibers. A simplified alkali‐chelation‐bleaching process, free from sulfur and chlorine, yielded high α‐cellulose pulp with low lignin and hemicellulose content. The pulp was successfully spun into continuous hemp‐based lyocell fibers, demonstrating
Md Abu Sayed, Lelia Lawson, Bernardo Araujo Souto, K. M. Abdun Noor, Dagem Z. Haddis, Frehiwot T. Hailu, Jane Batcheller, David C. Bressler, Patricia I. Dolez   +8 more
wiley   +1 more source

Thermal Stabilization of Chitosan Yarn for Carbon Fiber Production

Journal of Applied Polymer Science, Volume 143, Issue 13, April 5, 2026.
This study explores chitosan, a biopolymer derived from chitin, as a renewable precursor for carbon fiber production. The authors demonstrate that chitosan fibers can be successfully stabilized under controlled thermal conditions in air and nitrogen.
Irina Kuznik, Paul Bertram, Katharina Maria Ernst, Lukas Benecke, Iris Kruppke   +4 more
wiley   +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

The Effect of Varying Drying Temperatures on the Recyclability of Thermomechanical Pulps [PDF]

, 1997
There has been conflicting data regarding the effects of recycling on pulps. Strength properties go down for chemical pulps after being recycled, but the strength properties go up for mechanical pulps after recycling.
Collegnon, Jeffry J.
core   +1 more source

Best Available Techniques (BAT) Reference Document for the Production of Pulp, Paper and Board. Industrial Emissions Directive 2010/75/EU (Integrated Pollution Prevention and Control) [PDF]

, 2015
The BAT reference document entitled ‘Production of Pulp, Paper and Board' forms part of a series presenting the results of an exchange of information between EU Member States, the industries concerned, non-governmental organisations promoting ...
DELGADO SANCHO Luis, GINER SANTONJA German, KLEIN Gabriele, KOURTI Ioanna, RODRIGO GONZALO Miguel, ROUDIER Serge, SUHR Michael   +6 more
core   +1 more source

Sulfuric acid bleaching of kraft pulp 1: Bleaching of hardwood and softwood kraft pulps

Journal of Wood Science, 1999
To develop a new nonchlorine bleaching technology, hardwood and softwood kraft pulps, before and after oxygen-alkali predelignification, were treated with dilute sulfuric acid solutions (pH 1.0-1.8) at 100°C for 1 h and then extracted with aqueous sodium hydroxide at 70°C for l h. Hardwood kraft pulp was successfully bleached.
Tsutomu Ikeda, Shuji Hosoya, Yoichi Tomimura, Kengo Magara, Isao Takano   +4 more
openaire   +1 more source