title: Recovering ultraclean lignins of controlled molecular weight from Kraft black-liquor lignins.
abstract: By operating in a region of liquid-liquid equilibrium, hot acetic acid-water mixtures can be used to simultaneously clean, fractionate, and solvate Kraft black-liquor lignins. Lignin-rich liquid phases of controlled molecular weight with key metals contents reduced to <50 ppm are obtained without a washing step.
authors.affiliation: Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, SC 29634-0909, USA. mcths@clemson.edu.
authors.forename: A S
authors.initials: AS
authors.lastname: Klett
authors.forename: P V
authors.initials: PV
authors.lastname: Chappell
authors.forename: M C
authors.initials: MC
authors.lastname: Thies
mesh_terms: D019342:Acetic Acid / Q000737:chemistry; D008031:Lignin / Q000737:chemistry* / Q000302:isolation & purification*; D008970:Molecular Weight; D014867:Water / Q000737:chemistry
chemical_list: D014867:Water; C076151:Kraft lignin; D008031:Lignin; D019342:Acetic Acid