Results 81 to 90 of about 274,187 (223)
Evalution Prosopis juliflora(Somr) potential in Kraft Pulping [PDF]
Iranian Journal of Wood and Paper Industries, 2016 In this research, physical, biometrical and chemical properties of Prosopis juliflora wood and then physical and mechanical properties of kraft pulp from aforesaid species were investigated and calculated. Dry and critical densities of Prosopis juliflora
ABBAS fAKHRYAN ROGHANI +3 more
doaj
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
Application of xylanases from Amazon Forest fungal species in bleaching of eucalyptus kraft pulps
Brazilian Archives of Biology and Technology, 2007 Crude xylanase preparations from Penicillium corylophilum, Aspergillus niger and Trichoderma longibrachiatum were used to treat Eucalyptus kraft pulp, prior to chlorine dioxide and alkaline bleaching sequences. The enzyme pretreatment improved brightness
Roseli Garcia Medeiros +4 more
doaj +1 more source
PolymersBy reflecting on the history and environmental impact of conventional biorefining, such as kraft pulping, we aim to explore important questions about how natural polymers can be more sustainably sourced to develop bio-products and reduce reliance on ...
K. Rajan +3 more
semanticscholar +1 more source
SUITABILITY OF TREMBLING ASPEN (Populus tremula L.) FOR HIGH YIELD PULPING
Forestist, 2001 This study was undertaken to investigate properties of high yield pulps from trembling aspen (Populus tremula L.) vvood, which is one of the most widespread pioneer forest tree in Turkey.
Celil ATİK
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BioResourcesFor sustainable use of lignocellulosic resources, pruned tree branches of cocoa, one of the major evergreen tropical tree crops with significant economic importance worldwide, were investigated as a potential source of kraft pulp.
Laura Andze +6 more
doaj
BioResources, 2014 The production of high-yield pulp in China has increased significantly in recent years. The well-known advantages of this type of pulp include low production cost, high opacity, and good paper formation.
Yanhong Gao, Jing Shen, Qun Li
doaj +1 more source
Investigation of pulping and paper making potential of weeds [PDF]
Iranian Journal of Wood and Paper Industries, 2017 Increasing use of wood products accompanying with resource constraint has revealed the importance of nonwood based material. In this study, pulping and papermaking potential of three varieties of weeds including Xanthium spinosum, Carthamus tinctorius ...
omid Ghaffarzadeh Mollabashi +2 more
doaj
Oxidation Treatments Using Hydrogen Peroxide to Convert Paper-Grade Eucalyptus Kraft Pulp into Dissolving-Grade Pulp. [PDF]
Molecules, 2023 Vera-Loor A +3 more
europepmc +1 more source
Cellulose, 2013 This study compares the suitability of using birch kraft pulp or softwood kraft pulp in the preparation of TEMPO-oxidized pulp, MFC and superabsorbent foam. TEMPO oxidation was performed using five different dosages of primary oxidant.
F. W. Brodin, H. Theliander
semanticscholar +1 more source