Results 101 to 110 of about 23,645 (231)

Mechanochemical Lignin-Mediated Strecker Reaction

open access: yesMolecules, 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   +4 more
doaj   +1 more source

Increasing sub/tropical eucalypt timber plantation profitability by value adding to thinnings [PDF]

open access: yes, 2012
New processing options and end-uses are being developed to create larger, more stable and higher-value markets for plantation-sourced wood. To justify continued expansion of Australia's current hardwood plantation estate it is becoming necessary to ...
Baillères, Henri   +3 more
core  

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

open access: yesMaderas: 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   +6 more
doaj  

The Influence of Single, Two, and Three Stage Bleaching on Fading Characteristic of Deinked Stock [PDF]

open access: yes, 1952
A literature survey on the various bleaching methods used on deinked stock and the factors which influence the fading characteristic of deinked stock is compiled. Mention is also made of various additives which have an influence on the fading of a sheet.
Avery, Phillip H.
core   +1 more source

Investigating the Depolymerization Behavior of Structurally Modified Kraft Lignin in Deep Eutectic Solvents

open access: yesBioResources
Deep eutectic-like solvents (DESs) are ideal green solvents for achieving depolymerization of kraft lignin under mild conditions. In this study, the impact of changes in chemical structures in hardwood kraft lignin (HKL), softwood kraft lignin (SKL ...
Wenguang Li, Shubin Wu
doaj  

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

open access: yesCiência 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   +2 more
doaj  

Wood and fibre properties of fertilized Norway spruce [PDF]

open access: yes, 2003
Very intensive forest management is relatively unexplored in Sweden, and while there is interest in pursuing e.g. the use of fertilizers on selected areas, there is concern about the quality of the wood when growth rate increases.
Lundgren, Christina
core  

Oxidative depolymerisation of kraft lignin

open access: yes, 2023
The production of green hydrogen may be greatly aided by the use of an alternative anode reaction replacing oxygen evolution to increase energy efficiency and concomitantly generate value-added products. Lignin, a major component of plant matter, is accumulated in large amounts in the pulp and paper industry as waste.
Brix, Ann Cathrin (M. Sc.)   +6 more
openaire   +1 more source

The Effect of Ultraviolet Light on the Color of Unbleached Pulps: Literature Survey [PDF]

open access: yes, 1959
A literature survey was prepared which covered the published information on the effects of ultraviolet light on the color of unbleached pulps. Experiments were conducted with eight types of unbleached pulp which were converted into optical test pads ...
Brew, David L.
core   +1 more source

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