Assertion: lignin | /r/CapableOf | say aqueous caustic alkali
Facets:
Source sentences:
text: A method according to claim 5 wherein said lignin is dissolved in an amount of between 5 and 25% lignin solids in said aqueous caustic alkali, and wherein said ozone is absorbed in an amount between 5 and 20% by weight of ozone based on the weight of lignin in said solution.