Results 81 to 90 of about 1,752 (175)

Kraft Pulping of Wheat Straw

, 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.
openaire   +1 more source

EFEITO DOS SÓLIDOS DISSOLVIDOS DA MADEIRA NA BRANQUEABILIDADE E NAS PROPRIEDADES FÍSICO-MECÂNICAS E ÓPTICAS DE POLPA KRAFT BRANQUEADA DE EUCALIPTO

Ciência Florestal, 2012
Many studies have shown that the yield of kraft pulping can be improved by xylan reabsorption to the pulp during the cooking, and kraft black liquor contains significant fraction of xylan from wood, an important source of these macromolecules.
Dalton Longue Júnior, Jorge Luiz Colodette   +1 more
doaj  

PREPARATION OF XYLOSE AND KRAFT PULP FROM POPLAR BASED ON FORMIC/ACETIC ACID /WATER SYSTEM HYDROLYSIS

BioResources, 2009
A formic/acetic acid/water system was used in the ratios of 30:60:10, 20:60:20, and 30:50:20 separately for efficient hydrolysis and bioconversion of poplar chips, under the solid/liquid ratio of 1:12(g/ml), at 105 oC for 30, 45, 60, 75, and 90 min ...
Junping Zhuang, Lu Lin, Jing Liu, Xiaolin Luo, Chunsheng Pang, Pingkai Ouyang   +5 more
doaj  

EFEITO DA QUALIDADE DA MADEIRA NO DESEMPENHO DA POLPAÇÃO KRAFT

Ciência Florestal, 2014
The aim of this study was to evaluate the wood quality in the kraft pulping performance under two different pulping conditions at two delignification degrees based on results for the yield, brightness, viscosity, and k/ kappa corrected index.
Danila Morais de Carvalho, Marcelo Rodrigues da Silva, Jorge Luiz Colodette   +2 more
doaj  

Isolation and Characterization of Cellulose Nanocrystals from Rejected Fibers Originated in the Kraft Pulping Process. [PDF]

Polymers (Basel), 2018
Aguayo MG, Fernández Pérez A, Reyes G, Oviedo C, Gacitúa W, Gonzalez R, Uyarte O.   +6 more
europepmc   +1 more source

Physics-Guided Multi-Task Learning for Small-Sample Soft Sensing: Simultaneous Prediction of Kappa Number and Viscosity in Continuous Kraft Pulping. [PDF]

Sensors (Basel)
Zhang B, Shi L, Zhang X, Xu M.
europepmc   +1 more source

Is Kraft Pulping the Future of Biorefineries? A Perspective on the Sustainability of Lignocellulosic Product Development. [PDF]

Polymers (Basel)
Rajan K, Berton P, Rogers RD, Shamshina JL.   +3 more
europepmc   +1 more source

Fractionation of wood due to industrial chipping: effects and potential for Kraft pulping of European spruce. [PDF]

Cellulose (Lond)
Poschner R, Czibula C, Bakhshi A, Harter T, Eckhart R, Hirn U.   +5 more
europepmc   +1 more source

Recent Advances in Electrocatalytic Treatment and Valorization of Pulping and Papermaking Wastewater. [PDF]

Molecules
Bai Y, Liu S, Liu X, Zhao X.
europepmc   +1 more source

Delignification, Yield, Defibreability, and Brightness of Pine Wood (Pinus sylvestris) Pulped Using the Alkaline Sulphite Method with the Addition of DDA and Ethylene Glycol

BioResources
Sodium sulfite (Na2SO3) is known as a selective chemical agent for wood delignification. In this work, Scots pine (Pinus sylvestris) wood was pulped using alkaline sulfite (AS) with the addition of 1,4-dihydro-9,10-dihydroxy anthracene (DDA) [called also
Dariusz Danielewicz
doaj