abstract |
The present invention relates to a process for increasing the reactivity of lignin, the process comprising the steps of: a) forming, by heating at a temperature of 71 to 94 ° C, an aqueous dispersion comprising alkali and lignin, wherein the alkali comprises an alkali metal hydroxide; and b) heating the dispersion formed in step a) at a temperature of 50 to 95 ° C to produce alkalized lignin. |