Fenton's reaction: a simple and versatile method to structurally modify commercial lignosulphonates

Fenton's reaction : a simple and versatile method to structurally modify commercial lignosulphonates

QC 20110901
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.

TEKNIK OCH TEKNOLOGIER Materialteknik Pappers-, massa- och fiberteknik hsv//swe
ENGINEERING AND TECHNOLOGY Materials Engineering Paper, Pulp and Fiber Technology hsv//eng
Lignosulphonate
Fenton's reagent
Molecular weight increase
Carboxylic groups
Phenolic groups
Structural modifications
Reaction mechanism
Hydrogen peroxide
Cellulose and paper engineering
Cellulosa- och pappersteknik

Henriksson, GunnarKTH,Träkemi och massateknologi(Swepub:kth)u1lkf75c (författare)
KTHTräkemi och massateknologi (creator_code:org_t)

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