alkali lignin

alkali lignin

[′al·kə‚lī ′lig·nən]
(materials)
A type of lignin produced by treating the black liquor from the soda process with acid; used as an extender in the negative plates of storage batteries, in asphalt, and in paperboard products.
References in periodicals archive ?
Because the alkali lignin macromolecules are curled and the reactive groups can hardly be effectively used, they need to be modified before reacting.
After Mannich reaction, the alkali lignin has more active groups that are conducive to the followed reactions.
Figure 6 depicts the behaviour of the alkali lignin concentration and COD removal during the WO experiments at different oxygen partial pressures.