منابع مشابه
Enzymatic Bleaching of Wood Pulp
The dark colour of kraft pulp after the wood chips have been heated at high temperature with NaOH solution is caused by lignin (a complex phenolic polymer) still attached to the cellulose fibres. Traditionally this pulp is treated with chlorine to bleach the pulp to make it suitable for paper making. Unfortunately this leads to the formation of some potentially toxic chlorophenolic compounds of...
متن کاملEffects of Some Wood Chip Properties on Pulp Quality
A series of TMP experiments were performed at CIPP’s TMP pilot plant, and some pulp properties were measured. By comparing chip and pulp properties, and using projections to latent structures (PLS) analysis, we were able to demonstrate that on-line CMS measurements can be used to predict some pulp properties. It should be pointed out that the focus of this paper is to show how CMS measurements ...
متن کاملSome Researches on Histones
The histone extracted from calf thymus glands is a complex system of proteins, which can be fractionated by chromatography on carboxymethyl cellulose columns into three principal fractions (1) very lysine-rich, (2) moderately lysine-rich, (3) arginine-rich. When examined by starch gel chromatography each of these gives more than one band. Methods have been devised for further separation of the ...
متن کاملGasification-based Biorefinery for Mechanical Pulp Mills
The modern concept of "biorefinery" is dominantly based on chemical pulp mills to create more value than cellulose pulp fibres, and energy from the dissolved lignins and hemicelluloses. This concept is characterized by the conversion of biomass into various biobased products. It includes thermochemical processes such as gasification and fast pyrolysis. In mechanical pulp mills, the feedstock av...
متن کاملReinforcement ability of mechanical pulp fibres
Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Jouko Lehto Name of the doctoral dissertation Reinforcement ability of mechanical pulp fibres Publisher School of Chemical Technology Unit Department of Forest Products Technology Series Aalto University publication series DOCTORAL DISSERTATIONS 47/2011 Field of research Paper and Printing Research Manuscript submitted 2 Novem...
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ژورنال
عنوان ژورنال: Journal of the agricultural chemical society of Japan
سال: 1940
ISSN: 0002-1407,1883-6844
DOI: 10.1271/nogeikagaku1924.16.6_590