COMPARATIVE STUDY OF INDUSTRIAL LIGNOSULFONATES AND SOME THEIR PROPERTIES

Brigita Neiberte, Antons Jablonsky, Galia Shulga, Anrijs Verovkins, Sanita Vitolina, Julia Brovkina

Abstract


The aim was to compare the chemical composition and some properties of three industrial lignosulfonates produced as a by-product at three pulp and paper mills (Russia). Using the classical methods of lignin chemistry, it was found that there were differences in the elemental composition and the content of functional groups of the industrial lignosulfonates, but in general, they were not very significant. The Kondopoga lignosulfonates contained the highest content of methoxy, aliphatic hydroxyl groups and carbonyl groups. The Vyborg lignosulfonates had the highest degree of sulfonation and the lowest content of carbonyl groups. The content of the functional groups in the chemical composition of the Syassky lignosulfonates was intermediate between the functional composition of the Vyborg and Kondopoga lignosulfonates. The Vyborg lignosulfonates had the lowest values of the viscosity average molecular mass, dynamic viscosity and surface tension at the air-water interface in comparison with these parameters of the Kondopoga and Syassky lignosulfonates.

Keywords


industrial lignosulfonates; chemical composition; viscosity; surface tension

Full Text:

PDF

References


Qian Y., Lou H., Liu W., Yang D., Ouyang X., Li Y., Qiu X. Lignin - a promising biomass resource, TAPPI JOURNAL, March 2018.

Sarkanen K. V., Ludwig C. H., Lignins, Occurrence, Formation, Structure and Reactions. Wiley Interscience, New York, 1971.

Lignin: Structural Analysis, Applications in Biomaterials and Ecological Significance. Fachuang Lu (Ed), Nova Publishers, New York, 2014.

Zakis G. F. Functional analysis of lignins and their derivatives. Atlanta: TAPPI PRESS, GA: 1994.

David N.-S., Shiraishi Hon Nobuo. Wood and cellulosic chemistry, second edition. New York: Marcel Dekker, 2001, 931.p.

Fengel D., Wegener G. Wood Chemistry. Verlag Kessel: 2003, 611p.

Yean G.W., Rezanowich A., Goring D.A.I. The molecular weight and configuration of sodium lignosulphonate from spruce wood. In: Chemistry and Biochemistry of Lignin, Cellulose and Hemicelluloses. M.N. Cipkina (Ed). Moscow, 1969, pp.158–169.

Shulga G., Shakels V., Aniskevicha O., Bikova T., Treimanis A. Effect of alkaline modification on viscometric and surface-active properties of soluble lignin. Cell. Chem. Techn., 40, 2006, pp. 383–392.

Ahvazi B., Cloutier É., Wojciechowicz O., Ngo T.D. Lignin Profiling: A Guide for Selecting Appropriate Lignins as Precursors in Biomaterials Development. ACS Sustainable Chem. Eng., 2016, 4 (10), pp 5090–5105.




DOI: http://dx.doi.org/10.17770/etr2019vol3.4121

Refbacks

  • There are currently no refbacks.