Fenton's reaction: a simple and versatile method to structurally modify commercial lignosulphonates
2011 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, Vol. 26, no 1, 90-98 p.Article in journal (Refereed) Published
Treatment of lignosulphonates with hydrogen peroxide and Fe (II) acetate under mild conditions can be used to increase the molecular weight and content of carboxylic acids. Such Fenton's oxidation can produce, in some of the conditions of and lignosulphonate concentration, a two-fold increase in the molecular weight and a 6-7 fold increase in the carboxylic acid content. The structural modifications of lignosulphonate may increase the technical performance of the product in several applications. Possible reaction mechanisms of the Fenton system are proposed and discussed.
Place, publisher, year, edition, pages
2011. Vol. 26, no 1, 90-98 p.
Lignosulphonate, Fenton's reagent, Molecular weight increase, Carboxylic groups, Phenolic groups, Structural modifications, Reaction mechanism, Hydrogen peroxide
Paper, Pulp and Fiber Technology
IdentifiersURN: urn:nbn:se:kth:diva-38866DOI: 10.3183/NPPRJ-2011-26-01-p090-098ISI: 000293770200009ScopusID: 2-s2.0-79955452061OAI: oai:DiVA.org:kth-38866DiVA: diva2:438230
QC 201109012011-09-012011-09-012011-09-01Bibliographically approved