Results 11 to 20 of about 598 (215)

Adam Kraft’s Moving Sandstones

Arts, 2023
Adam Kraft, Albrecht Dürer’s contemporary in Nuremberg, worked in the material of sandstone to provide a comparable experience in carved relief about the Passion of Christ.
Larry Silver
doaj   +1 more source

Characterisation of lignins isolated from bamboo organosolv and kraft black liquor

Maderas: Ciencia y Tecnología, 2023
Bamboo biomass was pulped using organosolv methods: Acetic acid and formic acid; hydrogen peroxide and formic acid; ethanol and water and kraft process with varying concentrations of the cooking chemicals.
Nusirat Aderinsola Sadiku, Abdulazeez Faruq Yusuph   +1 more
doaj   +1 more source

Tailor-made alkaliphilic and thermostable fungal laccases for industrial wood processing

Biotechnology for Biofuels and Bioproducts, 2022
Background During the kraft process to obtain cellulosic pulp from wood, most of the lignin is removed by high-temperature alkaline cooking, released in the black liquors and usually incinerated for energy. However, kraft lignins are a valuable source of
David Rodríguez-Escribano, Rocío Pliego-Magán, Felipe de Salas, Pablo Aza, Patrizia Gentili, Petri Ihalainen, Thomas Levée, Valérie Meyer, Michel Petit-Conil, Sandra Tapin-Lingua, Michael Lecourt, Susana Camarero   +11 more
doaj   +1 more source

Kraft Lignin Conversion into Energy Carriers under the Action of Electromagnetic Radiation

Journal of Chemistry, 2019
In this work, it was found that the deposition of iron salts (iron acetate) on kraft lignin at extremely low concentrations of 0.1 wt.% leads to a sharp increase in the absorbing capacity of microwave radiation by kraft lignin at its power of 1 kW and ...
P. Zharova, O. V. Arapova, G. I. Konstantinov, A. V. Chistyakov, M. V. Tsodikov   +4 more
doaj   +1 more source

Mechanochemical Lignin-Mediated Strecker Reaction

Molecules, 2017
A mechanochemical Strecker reaction involving a wide range of aldehydes (aromatic, heteroaromatic and aliphatic), amines, and KCN afforded a library of α-aminonitriles upon mechanical activation.
Saumya Dabral, Mathias Turberg, Andrea Wanninger, Carsten Bolm, José G. Hernández   +4 more
doaj   +1 more source

Study of colorimetric properties of kraft papers [PDF]

E3S Web of Conferences
This article discusses the production of kraft paper incorporating waste materials from the silk industry and secondary recycled paper (MS- 3A), along with fillers and adhesives, as a means of conserving valuable cotton cellulose.
Eshbaeva Ulbosin, Baltabaeva Barno, Zengin Gokhan, Candas Arife   +3 more
doaj   +1 more source

Evaluation and Optimization of Kraft Delignification and Single Stage Hydrogen Peroxide Bleaching for Ethiopian Sugarcane Bagasse

Journal of Natural Fibers, 2022
The current study investigated the Ethiopian sugarcane bagasse during its delignification using the Kraft pulping process and bleaching by single stage hydrogen peroxide process.
Medhanit Mamaye, Zebene Kiflie, Sisay Feleke, Abubeker Yimam   +3 more
doaj   +1 more source

Impact of drying process on kraft lignin: lignin-water interaction mechanism study by 2D NIR correlation spectroscopy

Journal of Materials Research and Technology, 2021
Kraft lignin, an industrially available by-product from the pulp and paper industry, has revealed enormous potential to be valorised into a wide range of chemicals and biomaterials in the last two decades.
Oihana Gordobil, René Herrera, Faksawat Poohphajai, Jakub Sandak, Anna Sandak   +4 more
doaj   +1 more source

Papermaking Properties of Carpinus betulus with kraft, Soda and Soda-Urea Pulping Processes [PDF]

Iranian Journal of Wood and Paper Industries, 2013
This research was carried out in order to comparatively investigate the hornbeam kraft, soda and soda-urea papermaking properties. The selected treatment in kraft process had an average yield of 44.43% and kappa number of 23.75.
Rasoul Darstan, Majid Zabihzadeh, Noorodin Nazarnezhad   +2 more
doaj  

Bleaching of radiata pine Kraft pulp with the EnZone process

Journal of Biotechnology, 1995
Abstract Oxygen delignified Kraft pulps from radiata pine were treated with xylanase in the presence of a quelating agent prior to their chemical bleaching with the sequences WZEOPP, EPWZP and EOPWZP. Enzymes tested included Cartazyme from Sandoz, Ecopulp from Alko-ICI, Irgazyme 40 from Ciba-Genencor and Pulpzyme HB from Novo Nordisk.
VICUÑA-ERRAZURIZ, JOSE, OSSES, MIGUEL, YEBER, MARIA   +2 more
openaire   +4 more sources