Results 81 to 90 of about 3,914 (194)

Caracterização de compostos reduzidos de enxofre gerados na produção de celulose kraft e pré-hidró lise kraft

Ciência Florestal, 2002
An environmental concern in the kraft pulping is the odor caused by the reduced sulphur compounds.There are many simple equipments to detect on-line the total reduced sulphur (TRS), like the coulometric titrator.
Afonso Moura Moraes de, Celso Edmundo Foelkel Bochetti, Sonia Maria Frizzo Bitencourt   +2 more
doaj  

Efeito do teor de lignina da madeira de Eucalyptus globulus Labill. no desempenho da polpação kraft

Ciência Florestal, 2011
In this research, it was analyzed the lignin content effect of Eucalyptus globulus Labill. wood in kraft pulping optimization. Seventy-two laboratory cooking were made with wood chips obtained from six Eucalyptus globulus trees selected from a group of ...
Gabriel Valim Cardoso, Celso Edmundo Bochetti Foelkel, Sonia Maria Bitencourt Frizzo, Claudia Adriana Broglio da Rosa, Teotônio Francisco de Assis, Patrícia de Oliveira   +5 more
doaj  

Distinctive delignification with consecutive application of Geobacillus sp. 71 xylanase and Rhodococcus jostii rha1 lignin peroxidase

Maderas: Ciencia y Tecnología, 2018
In present study, single and consecutive applications of xylanase and lignin peroxidase were performed in an XOQP TCF sequence to bleach pine and eucalypts kraft pulp. The consecutive use of Geobacillus sp. strain 71 xylanase and Rhodococcus jostii RHA1
Aysegul Ozer, Sabriye Canakci, Gozde Gocmen, Ilhan Deniz, Huseyin Kirci, Onur Tolga Okan, Ali Osman belduz   +6 more
doaj  

KRAFT LIGNIN AS AN ADDITIVE IN PINE AND EUCALYPTUS PARTICLE COMPOSITION FOR BRIQUETTE PRODUCTION

Revista Árvore
The objective of this study was to evaluate the properties of briquettes produced with different proportions of pine and eucalyptus wood, as well as to characterize the potential of kraft lignin as an additive in the composition of briquettes for energy ...
Walter Torezani Neto Boschetti, Alice do Carmo Precci Lopes, Robisnéia Adriana Ribeiro, Rafael Quezada Reyes, Angélica de Cássia Oliveira Carneiro   +4 more
doaj   +1 more source

CHARACTERIZATION AND PROPERTIES OF ION EXCHANGERS PRODUCED FROM LIGNIN PRECIPITATED AFTER PEROXYACID PULPING

BioResources, 2008
Pulping of bagasse by one-stage and three-stage peroxyacetic acid was carried out. Characterization of the precipitated lignin from the waste liquor of the pulping process was studied using infrared spec-troscopy.
A. M. A. Nada, Nesrine F. Kassem, Samar H. Mohamed   +2 more
doaj  

Influence of residual lignin content on physical and mechanical properties of kraft pulp/pp composites

Maderas: Ciencia y Tecnología, 2014
The effect of residual lignin content on the mechanical strength and water absorption of kraft pulp/polypropylene composites was studied. To meet this objective, hornbeam wood chips were converted to kraft pulp at three different alkalinities (15, 20 ...
Majid Kiaei, Behzad Kord, Ramin Vaysi
doaj  

Development of an innovative powder adhesive based on epoxy-polyester and lignin for production of particleboards

Case Studies in Construction Materials
This study presents the development of innovative particleboards bonded with a hybrid powder adhesive composed of epoxy-polyester resin and kraft lignin, aiming to eliminate formaldehyde and volatile organic compounds (VOCs) from the manufacturing ...
Miroslav Němec, Jan Janesch, Lukáš Sahula, Kateřina Hájková, Tomáš Pipíška, Pavel Král, Benjamín Petržela, Štěpán Hýsek   +7 more
doaj   +1 more source

Depolymerisation of Kraft Lignin by Tailor-Made Alkaliphilic Fungal Laccases. [PDF]

Polymers (Basel), 2023
Rodríguez-Escribano D, de Salas F, Pliego R, Marques G, Levée T, Suonpää A, Gutiérrez A, Martínez ÁT, Ihalainen P, Rencoret J, Camarero S.   +10 more
europepmc   +1 more source

Single-Solvent Fractionation and Electro-Spinning Neat Softwood Kraft Lignin. [PDF]

ACS Appl Bio Mater, 2023
Hararak B, Khan I, Fernando GF.
europepmc   +1 more source

Ni-Fe Cocatalysts on Magnesium Silicate Supports for the Depolymerization of Kraft Lignin. [PDF]

ACS Omega, 2023
Laobuthee A, Khankhuean A, Panith P, Veranitisagul C, Laosiripojana N.   +4 more
europepmc   +1 more source