Results 71 to 80 of about 35,839 (230)
Internal fibre length concentration in a pressure screen [PDF]
, 2007 Localised axial consistency profiles within a pressure screen of a Pinus Radiata kraft pulp are reported. Axial Samples were also analysed using a Kajaani FS-200 to obtain fibre length distribution data.
Atkins, Martin John +2 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 +4 more
openaire +1 more source
Advanced Functional Materials, Volume 36, Issue 32, 20 April 2026.Dicarboxylate‐modified anionic hairy cellulose nanocrystals exhibit a high selectivity for dysprosium(III) over neodymium(III). This selectivity arises from disordered dicarboxylate cellulose “hairs” that enable cooperative ionic coordination, hydrogen bonding, and strain‐induced conformational shrinkage.
Roya Koshani +6 more
wiley +1 more source
The Pulping of Hardwood Sawdust by the Neutral Sulfite Semichemical Process for Use in Corrugating Medium [PDF]
, 1972 The need for using less expensive raw materials is ever increasing. Here the use of hardwood sawdust as one of these raw materials was investigated for use in Semichemical Corrugating Medium.
McClelland, James O.
core +1 more source
Beyond Brown: Lignin's Emerging Role in Structural Color
Advanced Optical Materials, Volume 14, Issue 13, 3 April 2026.Lignin, long regarded as a brown industrial byproduct, is emerging as a sustainable platform for structural color. This Perspective highlights how lignin's refractive index, intrinsic absorption, and nanoscale assembly enable tunable photonic responses in colloidal and thin‐film architectures, and outlines design strategies to advance scalable, bio ...
Ravi Shanker, Anna Justina Svagan
wiley +1 more source
Revista Árvore, 2005 Foram analisados clones de Eucalyptus de última geração, pertencentes às principais empresas brasileiras de celulose. Os estudos consistiram numa caracterização tecnológica detalhada da qualidade das madeiras utilizadas no processamento fabril das ...
José Lívio Gomide +3 more
doaj +1 more source
A Study of the Use of Borates in Semi-Chemical Pulping [PDF]
, 1997 The purpose of this project was to identify sodium metaborate as a pulping chemical in semi-chemical pulping with soda ash. The experimental design included four digester cooks with 0%, 10%, 20%, and 40% addition of.the borate compound.
Hebner, Dan
core +1 more source
Virgin kraft pulp and paper characteristics of Vitex Pubescens Vahl. (Halban) wood [PDF]
, 2020 Insufficient wood-based materials due to environmental sustainability have further enhanced the search for alternatives in the paper industry. Thus, wood sample from Vitex Pubescens Vahl (Halban) was evaluated based on the pulp characteristics; and paper
A Hamid, Mokhtar +4 more
core +1 more source
Chip-Handling and Kraft Pulping.
JAPAN TAPPI JOURNAL, 1996 パルプ原材料の96%を占めるチップの現状と購入チップの受け入れ設備及び貯蔵施設に触れた後, KP蒸解反応と連続蒸解設備の改良について, 反応速度論の立場から解説した。脱リグニン反応速度と炭水化物の崩壊反応速度をチップ厚さの影響なども含め説明し, 時間, 温度, アルカリ濃度, 硫化度及びチップ厚さの5因子を入れた蒸解反応速度式をアルレニウスの式に基づいた実験式として紹介した。さらに蒸解の目的がパルプ成分である炭水化物をできるだけ多く残し, リグニンの残留量を少なくすることから.反応が選択的になり得るための望ましい蒸解反応条件を探るために蒸解反応の選択性とシミュレーションによる最適化を解説した。すなわち, 得られた実験式に各種蒸解条件を入れて数値計算し ...
openaire +2 more sources
Revisiting acidulation for tall oil and lignin manufacturing
The Canadian Journal of Chemical Engineering, Volume 104, Issue 4, Page 1677-1691, April 2026.Abstract Tall oil is a byproduct of the kraft pulping process when softwood is used as raw material. As the production of softwood‐based pulp is in high demand, the optimization of the tall oil production process needs to be revisited to ensure the highest quality and quantity of tall oil manufacturing. In this work, the process for tall oil production
Thomas Aro, Weijue Gao, Pedram Fatehi
wiley +1 more source