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Items for "bleachability"

Voltammetric analysis of the bleachability of softwood kraft pulps

Kraft and oxygen delignified pulps with various kappa numbers were prepared from black spruce and western hemlock chips...

Keywords: bleachability, ECF bleaching, electrochemical analysis, kappa number, kraft pulp, lignin, reactivity, Redox potential, softwood, Voltammetry

10/2004 | Holzforschung, Walter de Gruyter
Changes in the lignin-carbohydrate complex in softwood kraft pulp during kraft and oxygen delignification

Three kraft pulps in the kappa number range between 50 and 20 and the same pulps oxygen-delignified to similar lignin contents (kappa approximately 6) were analyzed for lignin-carbohydrate complexes (LCC) by a method based on selective enzymatic hydrolysis of the cellulose, and quantitative fractionation of the LCC...

Keywords: bleachability, kappa number, kraft pulping, lignin-carbohydrate complex (LCC), oxygen delignification, residual lignin, specific absorptivity

10/2004 | Holzforschung, Walter de Gruyter