Record Display for the EPA National Library Catalog


Main Title Studies of low molecular weight lignin sulfonates /
Author Glasser, Wolfgang G., ; Gratzl, Josef S. ; Forss, Kaj ; Hrutfiord, Bjorn F. ; Johanson., Lennart N.
CORP Author Washington Univ., Seattle. Dept. of Chemical Engineering.;Pacific Northwest Environmental Research Lab., Corvallis, Oreg.
Publisher Office of Research and Development, U.S. Environmental Protection Agency, For sale by the Superintendent of Documents, U.S. Government Printing Office
Year Published 1974
Report Number EPA-660/2-74-069; EPA-12040-DEH
Stock Number PB-239 368
OCLC Number 02036593
Subjects Sulfite pulping process ; Wood-pulp industry--Waste disposal ; Lignin ; Sulphite pulping process
Additional Subjects Lignin ; Sulfonates ; Spent sulfite liquors ; Industrial wastes ; Chemical composition ; Chemical structure ; Separation ; Molecular weight
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 660-2-74-069 c.1 Headquarters Library/Washington,DC 11/20/2012
ELBD ARCHIVE EPA 660-2-74-069 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD RPS EPA 660-2-74-069 repository copy AWBERC Library/Cincinnati,OH 03/30/2015
NTIS  PB-239 368 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation viii, 83 pages : illustrations ; 27 cm.
Low molecular weight lignin sulfonates have been separated in purified form and characterized by physicochemical and chemical methods. Their structure and reactions have been evaluated. Lignin sulfonates from the spent sulfite liquor of a mild acid bisulfite cook of Western Hemlock (Tsuga heterophylla) were purified and fractionated in Sephadex G-25 column chromatography. Complete elemental and functional group compositions were established for lignin sulfonates from a spent sulfite liquor and compared to those from milled wood lignin preparation. Extended separation studies indicated the low molecular weight lignin sulfonates to be the reaction product of a difunctional vinyl-type polymerization. The feasibility of large scale separations was determined using (1) the extraction and precipitation of the dry matter in a spent sulfite liquor with alcohol, and (2) the fractionation of the material by ion exclusion in a column arrangement.
"June 1974." "Project officer, Dr. H. Kirk Willard, Pacific Northwest Environmental Research Laboratory." U.S. G.P.O. sales statement incorrect in publication. Includes bibliographical references (pages 77-79). For the Office of Research and Development, U.S. Environmental Protection Agency