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Mechanism of xanthation reaction in viscose process

  • Sachin C. GondhalekarEmail author
  • Pravin J. Pawar
  • Sunil S. Dhumal
  • Shirish S. Thakre
Original Research


Xanthation reaction in viscose process is heterogeneous reaction (gaseous CS2-wet alkaline cellulose) complicated with side reactions. Commercial requirement of CS2 in viscose process is 32–34%, which is significantly higher than the stoichiometric requirement (23.5% w/w of the cellulose) due to formation of byproducts. Detailed xanthation reaction kinetics study was performed to understand the xanthate and by-products formation mechanism along with effect of mass transfer and its possible impact on CS2 consumption. Heterogeneous nature of the xanthation reaction offers significant mass transfer resistance and was hypothesized to be driven by CS2 partitioning into wet alkali cellulose and its unstable complex (DTC—dithiocarbonate) formation with alkali. Xanthation reaction mechanism in the form of physico-chemical process steps has been proposed with experimental justification.

Graphical abstract


Xanthation kinetics Bulk diffusion Kinetics Mass transfer Avrami kinetics 



Authors acknowledges Grasim Industries Ltd. for financial support to this project along with Analytical Science and Technology Division of ABSTCPL for their instrumental analysis of alkali cellulose, CX and viscose dope samples.


  1. Abramova LS, Trusova SP, Rogovin ZA (1982) Ripening of low-substitution cellulose xanthate solutions. Fibre Chem 13:327–328CrossRefGoogle Scholar
  2. Avrami M (1941) Granulation, phase change, and microstructure kinetics of phase change III. J Chem Phys 9:177–184CrossRefGoogle Scholar
  3. Butkova NT, Tokareva TI, Pakshver AB, Finger GG, Butyagin PA, Shablygin MV (1979) Reduction of carbon disulfide consumption in xanthation by ammonia-activation of cellulose. Fibre Chem 10:570–571CrossRefGoogle Scholar
  4. Dautzenberg H, Philipp B (1972) The reaction processes of soda cellulose with carbon disulphide. Fibre Chem 3:488–497CrossRefGoogle Scholar
  5. Dominiak K, Ebeling H, Kunze J, Fink H (2011) 13C-NMR spectroscopical investigations of the substittuent distribution in cellulose xanthates. Lenzing Ber 89:132–141Google Scholar
  6. Duveen RF (1997) Technology and its development in the viscose industry. Lenzing Ber 76:33Google Scholar
  7. Finger GG, Pakshver AB (1990) Effect of sulfur-containing by-products in viscose on its properties and the process of fibre spinning. Fibre Chem 22:168–176CrossRefGoogle Scholar
  8. Henry B, Williams L (1945) Determination of total sulfur and of gamma number of viscose. Ind Eng Chem Anal 17:624–626CrossRefGoogle Scholar
  9. Hovenkamp SG (1963) Sodium dithiocarbonate as a by-product in xanthating reactions. A contribution to the chemistry of viscose. J Polym Sci Part C Polym Symp 2:341–355CrossRefGoogle Scholar
  10. John LH (1967) Man-made fibres. Interscience, New YorkGoogle Scholar
  11. Koutu BB, Bhagwat VW (1999) Kinetic study of xanthation reaction with various pulps in viscose process. J Polym Mater 16:259–264Google Scholar
  12. Kraft G, Schelosky N (2000) Irradiation of dissolving pulp by electron beams. Lenzing Ber 79:65–70Google Scholar
  13. Lanieri DB, Olmos GV, Alberini IC, Maximino MG (2014) Rapid estimation of gamma number of viscose by UV spectrophotometry. Papel 75:60–65Google Scholar
  14. Malyshevskaya KA, Mazur NA, Lasygina OV, Bibina NS, Bel’kevich IP (1976) Cellulose xanthate and by products in the viscose determined by spectrophotometry. Fibre Chem 8:233–234CrossRefGoogle Scholar
  15. Mark HF (2013) Encyclopedia of polymer science and technology. Wiley, New JerseyGoogle Scholar
  16. Nurminen M, Hernberg S (1984) Cancer mortality among carbon disulfide-exposed workers. J Occup Environ Med 26:341CrossRefGoogle Scholar
  17. Pavlov P, Valtcheva E, Makaztchieva V, Lozanov E (1991) Kinetics of xanthogenation after high-temperature mercerization. Acta Polym 42:462–465CrossRefGoogle Scholar
  18. Rahman M (1971) Spectrophotometric determination of xanthate and total sulfur in viscose. Anal Chem 43:1614–1618CrossRefGoogle Scholar
  19. Rassolov OP, Finger GG (1981) Effect of alkali cellulsoe composition and xanthation temperature on the maximum possible degree of esterification of cellulose xanthate. Fiber Chem 13:28–29CrossRefGoogle Scholar
  20. Rassolov OP, Kuzicheva NA, Khorin SA, Vasyutina AA, Zhuravskii VG, Kruglova NI (1986) Xanthation of alkali cellulose with a limited mixing time. Fibre Chem 18:30–31CrossRefGoogle Scholar
  21. Sakata H, Komatsu N (1962) The study on the mechanism of xanthation reaction by means of X-ray analysis. Sen’i Gakkaishi 18:992–997CrossRefGoogle Scholar
  22. Serkov AA, Finger GG, Klinova SN (1980) Wet xanthation of the alkali cellulose. Fibre Chem 11:473–475CrossRefGoogle Scholar
  23. Stepanova GA, Grishchenko VI, Pakshver AB, Kaller AL (1981) Effect of hemicellulose content of alkali cellulose on the xanthation process. Fibre Chem 13:248–250CrossRefGoogle Scholar
  24. Stepanova GA, Pakshver AB, Kaller AL (1982) Acceleration of the xanthation process of alkali cellulose. Fibre Chem 14:27–29CrossRefGoogle Scholar
  25. Wilcosky TC, Checkoway H, Marshall EG, Tyroler HA (1984) Cancer mortality and solvent exposures in the rubber industry. Am Ind Hyg Assoc J 12:809–811CrossRefGoogle Scholar
  26. Woodings C (2001) Regenerated cellulose fibres, vol 18. Woodhead Publishing, CambridgeCrossRefGoogle Scholar
  27. Wronski M (1956) Theory of kinetics of xanthation reaction. J Polym Sci Part A Polym Chem 19:210–212Google Scholar
  28. Youn OS, Yoo DI, Shin Y, Kim HC, Kim HY, Chung YS, Park WH, Youk JH (2005) Crystalline structure analysis of cellulose treated with sodium hydroxide and carbon dioxide by means of X-ray diffraction and FTIR spectroscopy. Carbohydr Res 340:2376–2391CrossRefGoogle Scholar

Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Fibre and Textile DivisionAditya Birla Science and Technology Company Pvt. Ltd.Taloja MIDCIndia

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