Organic acids as a greener alternative for the precipitation of hardwood kraft lignins from the industrial black liquor.
Sign Up to like & getrecommendations! Published in 2019 at "International journal of biological macromolecules"
DOI: 10.1016/j.ijbiomac.2019.09.133
Abstract: The use of three organic acids such as acetic, lactic and citric acid has been investigated as green precipitation agents for kraft lignin isolation from the industrial hardwood black liquor. Chemical composition, molecular structure characteristics… read more here.
Keywords: kraft lignins; hardwood; precipitation; black liquor ... See more keywords
Changing the Molecular Structure of Kraft Lignins—Ozone Treatment at Alkaline Conditions
Sign Up to like & getrecommendations! Published in 2019 at "ACS Sustainable Chemistry & Engineering"
DOI: 10.1021/acssuschemeng.9b01046
Abstract: Homogeneous solutions of Kraft lignin can be prepared in alkali. In this environment, ozone—an effective and established bleaching agent—rapidly converts into a variety of reactive oxygen species, ... read more here.
Keywords: ozone treatment; changing molecular; structure kraft; molecular structure ... See more keywords