Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Isolation of lignins

Although the use of lignin as an additive to polyurethanes is not new (15-20), even the most judicious selection of lignin isolation or modification schemes has not allowed researchers to overcome the incorporation limit of 25 to 40 weight percent of lignin as an active component in polyurethanes. Solvent fractionation allows for the isolation of lignin fractions with well defined solubilities and functionalities (21,22). Both of these features are critical for the practical inclusion of lignin into liquid polyol systems. [Pg.405]

Fukushima, R. S., and Hatfield, R. D., 2001, Extraction and isolation of lignin for utilization as a standard to determine lignin concentration using the acetyl bromide spectrophotometric method, J. Agric. Food Chem. 49 3133-3139. [Pg.191]

Lundquist K, Ohlsson B, Simonson R (1977) Isolation of lignin by means of liquid-liquid extraction Sven Papperstidn 80 143-144... [Pg.70]

Pew JC (1957) Properties of powdered wood and isolation of lignin by cellulytic enzymes Tappi 40 553-558... [Pg.70]

Poliin J, Bezuch B (1978) Enzymic isolation of lignin from wood and pulps Wood Sci Technol 12 149-158... [Pg.70]

See other pages where Isolation of lignins is mentioned: [Pg.28]    [Pg.72]    [Pg.78]    [Pg.78]    [Pg.101]    [Pg.101]    [Pg.106]    [Pg.80]    [Pg.123]    [Pg.94]    [Pg.180]    [Pg.68]    [Pg.8]    [Pg.65]    [Pg.68]    [Pg.69]    [Pg.71]    [Pg.71]    [Pg.73]    [Pg.74]    [Pg.75]    [Pg.411]    [Pg.549]    [Pg.22]    [Pg.22]    [Pg.23]    [Pg.19]    [Pg.49]    [Pg.52]    [Pg.310]    [Pg.349]    [Pg.351]   
See also in sourсe #XX -- [ Pg.240 ]



SEARCH



Composition of Isolated Lignin

Isolation of Kraft lignin

Isolation of Lignin from Pulp

Isolation of Residual Lignins from Semi-Bleached Pulps

Lignin isolation

Of lignin

Preferred Method for Isolation and Purification of Lignin

© 2024 chempedia.info