Results 91 to 100 of about 3,990 (212)
Emulsion Stabilization by Cationic Lignin Surfactants Derived from Bioethanol Production and Kraft Pulping Processes. [PDF]
Polymers (Basel), 2022 Yuliestyan A +5 more
europepmc +1 more source
Biotechnology for Biofuels, 2013 Background Lignin is one of the three major components in plant cell walls, and it can be isolated (dissolved) from the cell wall in pretreatment or chemical pulping.
Pan Xuejun, Saddler Jack N
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Low-Molecular-Weight Lignin Recovery with Nanofiltration in the Kraft Pulping Process. [PDF]
Membranes (Basel), 2022 Battestini Vives M +3 more
europepmc +1 more source
, 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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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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Ciência Florestal, 2008 The purpose of this study was to evaluate basic density, chemical composition and fiber dimensions of ten Eucalyptus sp wood samples and to verify the impact of this set of parameters and their combination on the Kraft pulping process yield and on ...
Alfredo Mokfienski +3 more
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Studies on Kraft and Kraft-AQ Pulping and Bleaching of Populus Deltoides [PDF]
, 2002 231-236Kraft pulping process is the most dominant process used in paper industry. Extending delignification to a low kappa number is possible with the use of anthraquinone (AQ).
Rao, Suhail Akhtar, Upadhyaya, J S
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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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ASA and kraft pulping of poplar [PDF]
, 2008 Poplar, a fast growing species, well-suited for pulp production, may be cultivated on agricultural areas in short rotation plantations. Under such conditions, its harvesting volume exceeds by far that of other wood species grown in temperate zones ...
Kordsachia, Othar +3 more
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Adição de antraquinona na polpação alcalina de Eucalyptus saligna
Ciência Florestal, 2000 The present work evaluated different alkaline pulping conditions for Eucalyptus saligna wood. The objective was to evaluate the influence of the anthraquinone (AQ) on the reduction of the total reduced sulfur (TRS) in the aerial emissions, by reducing ...
Lúcia Helena Jerônimo +2 more
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