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Madison, WI 53726-2398
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Title: Fourier transform Raman spectroscopic studies of a novel wood pulp bleaching system

Source: Spectrochimica Acta, Volume 49A, Number 5/6, pp. 819-829, 1993

Author(s)Weinstock, Ira A.; Atalla, Rajai H.; Agarwal, Umesh P.; Minor, James L.; Petty, Chris

Publication Year: 1993  View PDF »

Category: Journal Articles

Abstract: The use of near-infrared (NIR) Fourier transform (FT) Raman spectroscopy for the study of lignocellulosic materials is discussed. An application utilizing NIR FT-Raman spectroscopy to study a novel chlorine-free process for the bleaching of wood pulps is presented in detail. The new process, still under development. entails the oxidation of residual lignin in wood pulps by vanadium-substituted polyoxometalates, and reoxidation of the reduced polyoxometalates by chlorine-free oxidants such as air, dioxygen, peroxides or ozone. Results from FT-Raman measurements of polyoxometalate-treated pulps are compared with those from chemical. spectroscopic and optical techniques commonly used in the pulp and paper industry.

Keywords: fourier, Raman, spectroscopic, bleaching system

File size: 285 kb(s)

Date posted: 05/02/2011
Current FPL Scientist associated with this product
Agarwal, Umesh P.
Research Chemist

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