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Lignin portion

Wood chips are preheated in steam before passage through disc refiners. Heating is meant for softening the lignin portion of wood and to promote fiber separation. This pulp is stronger than that produced by the ground-wood process. [Pg.459]

It should be noted that the broad molar mass distribution of fraction I in Figure 3 reflects the molar mass distribution of the lignin-carbohydrate compounds and not that of the lignin portion of the lignin-carbohydrate compounds. [Pg.187]

Polyhydroxy structures formed by demethoxylation of the lignin portion of jute in sunlight, and the subsequent formation of quinone structures, are responsible for the discoloration of jute [351, 1304]. [Pg.349]

See other pages where Lignin portion is mentioned: [Pg.264]    [Pg.187]    [Pg.340]    [Pg.292]    [Pg.293]    [Pg.1245]    [Pg.1290]    [Pg.145]    [Pg.3660]    [Pg.350]    [Pg.385]    [Pg.392]    [Pg.189]    [Pg.248]    [Pg.320]    [Pg.117]    [Pg.220]    [Pg.350]    [Pg.255]    [Pg.425]    [Pg.218]    [Pg.269]    [Pg.372]   
See also in sourсe #XX -- [ Pg.79 ]



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Lignin methanol-soluble portion

Portion

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