Results 111 to 120 of about 9,977 (226)
Optimization of Kraft Pulp D/Q(EOP)D-Bleaching Plant [PDF]
, 2002 Työssä tutkittiin sulfaattisellutehtaan ECF-valkaisimon toimintaan vaikuttavia tekijöitä. Tavoitteena oli selvittää tekijöiden vaikutus massan laatuominaisuuksiin, valkaisimon kemikaalikustannuksiin ja klooridioksidin kulutukseen.
Tahvanainen, Erkka
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Comparative studies of kraft and kraft-borate pulping of black spruce [PDF]
, 2003 Borate autocausticizing can either replace (total autocausticizing) or supplement the kraft lime cycle (partial autocausticizing). Partial autocausticizing has been recently commercialized in one kraft mill and is undergoing trials in several additional ...
Cameron, John +2 more
core
The in vitro 14C-labelled kraft pulp assay as used for evaluation of laccases and mediators intended for pulp bleaching [PDF]
, 1998 In the presence of K-ferricyanide as oxidant at pH 10, 14C-ring-labelled synthetic lignin (DHP) was covalently coupled to unbleached kraft pulp. This chemically labelled kraft pulp (CLKP) was used in a small scale (30 mg pulp in 1.5 ml buffer) for ...
Semar, Sylvia +9 more
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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
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Trend of Bleaching In Kraft Pulp
JAPAN TAPPI JOURNAL, 2009 古くから，クラフトパルプの漂白は，塩素，次亜塩素酸塩，二酸化塩素の塩素系薬品を使って行なわれてきた。しかしながら，1980年代の北欧において，バルト海の汚染問題を契機に塩素漂白排水中の有機塩素化合物の環境影響が議論され，1990年代からは多くの国々で塩素漂白が中止され，ECF（Elementary Chlorine Free）漂白法への転換が進んだ。本報告では，クラフトパルプ用漂白剤をその脱リグニン機構に基づいて分類した上で，漂白剤の変遷という観点から，1960年代から今日に至るまでのクラフトパルプ漂白の変遷について述べる。
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Characterization of Cypress Wood for Kraft Pulp Production
BioResources, 2014 Wood samples of Cupressus arizonica, C. lusitanica, and C. sempervirens were evaluated for chemical, anatomical, and pulp characteristics as raw material for pulp production. Two 17-year-old trees per species were harvested, and wood samples were taken at a height of 2 m. Wood chips from Pinus pinaster (Portugal) and P.
Santos, António J. +5 more
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Electrospun cellulose fibres from kraft pulp [PDF]
, 2009 Cellulose, the most abundant biomass extractable from wood, was generated in fibre form from kraft pulp by electrospinning, a fibre-producing process using electrostatic forces. Kraft pulping is the most dominant pulping technique in North America. Kraft
Yeoh, Sang Ju
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Increased joint-forming ability of ductile kraft pulp fibres by polyelectrolyte multilayer treatment-Influence of refining and drying strategies [PDF]
, 2007 In this study a sack paper furnish was used. It consisted of a high-consistency kraft pulp refined in either an atmospheric pressure or a pressurized system. The pulps were subsequently low-consistency refined in an Escher-Wyss laboratory refiner to 17.5-
Sjöberg, Jessica +10 more
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, 2017 In this paper, pulping of wheat straw with Kraft process was studied. Chemical and morphological properties of wheat straw fibers were also investigated. Chemical properties including cellulose (39.8%), hemicellulose (29.47%), lignin (20.98%), ash (6.27%) and extractives (4.1%) were determined.
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