Results 81 to 90 of about 2,238 (210)
Improved oxygen delignification of bisulfite pulps
, 1996 The role of peracetic acid in improving a second oxygen delignification step of softwood bisulfite pulp was investigated. The results showed that peracetic acid improved the degree of delignification in a second oxygen stage, probably by increasing the ...
Nilsson, Helena +3 more
core
Evaluation of Hemp Root Bast as a New Material for Papermaking
BioResources, 2013 Industrial hemp is a non-wood fiber material that can be used for papermaking due to a high yield of hemp raw material and high-quality physical properties of its pulp.
Cheng Miao +3 more
doaj +1 more source
Oxygen Delignification for Southern Softwood Kraft Pulps with High Lignin
, 2005 The kinetics and selectivity of the oxygen delignification process were investigated for southern softwood Kraft pulps at high lignin content. The process variables investigated were the initial kappa number, the temperature, alkali application rate ...
Tao, Li
core
Reactivity Improvement of Bamboo Dissolving Pulp by Xylanase Modification
BioResources, 2015 A high reactivity is an essential prerequisite for dissolving pulp. In this study, xylanase modification to increase the reactivity of bamboo dissolving pulp was investigated.
Chaojun Wu +4 more
doaj +1 more source
Lignin model compound approach to modelling oxygen delignification reaction kinetics
, 2011 The oxygen delignification stage is implemented in modern kraft pulp mills to cut the cost of producing bleached bright pulp and reduce emissions from the bleaching process.
Lee, Michael
core
Green Chemical EngineeringA new coupled electrolysis system has been developed by combining pretreatment of lignocellulosic biomass (corn stover) in alkaline anolyte for increasing cellulose digestibility with electrochemical reduction of CO2 on the cathode to produce formic acid.
Xi Liu +3 more
doaj +1 more source
Optimization of recombinant laccase production by Yarrowia lipolytica in a medium containing glucose as carbon source with Taguchi method [PDF]
Biological Journal of Microorganism, 2017 Introduction:Laccases (EC 1.10.3.2; benzenediol: oxygen oxidoreductase) are copper-containing oxidases that use molecular oxygen to oxidize various aromatic and non-aromatic compounds.
Farshad Darvishi +3 more
doaj
Oxygen Delignification Kinetics and Selectivity Improvement
, 2003 Pulp strength loss during oxygen delignification is caused by cellulose chain cleavage resulting fiom attack by oxygen-based radicals generated through reactions with lignin.
Violette, Steven M.
core
Sodium Carbonate Pulping of Wheat Straw—An Alternative Fiber Source for Various Paper Applications
AgronomyEuropean paper mills are currently facing the question of whether recovered paper, their main raw material, will be available in sufficient quantities and an acceptable quality in the future.
Friedrich Steffen +5 more
doaj +1 more source
TCF BLEACHING CHARACTER OF SODA-ANTHRAQUINONE PULP FROM OIL PALM FROND
BioResources, 2011 The OQP, OQPO, and OLQP bleaching sequences have been applied to oil palm frond soda-anthraquinone pulp. Oxygen delignification resulted in a delignification of approximately half of the kappa number.
Xiwen Wang, +3 more
doaj