УДК: 535.324.2

Optical properties of green liquors and the use of commercial refractometry to monitor their composition in the production of sulfate cellulose

Belov, N.P., Lapshov, S.N., Mayorov, E.E., Sherstobitova, A.S., Yaskov, A.D.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Белов Н.П., Лапшов С.Н., Майоров Е.Е., Шерстобитова А.С., Яськов А.Д. Оптические свойства зеленых щелоков и применение промышленной рефрактометрии для контроля их состава при производстве сульфатной целлюлозы // Оптический журнал. 2014. Т. 81. № 1. С. 53–58.

Belov N.P., Lapshov S.N., Mayorov E.E., Sherstobitova A.S., Yaskov A.D. Optical properties of green liquors and the use of commercial refractometry to monitor their composition in the production of sulfate cellulose [in Russian] // Opticheskii Zhurnal. 2014. V. 81. № 1. P. 53–58.

For citation (Journal of Optical Technology):

N. P. Belov, S. N. Lapshov, A. S. Sherstobitova, A. D. Yas’kov, and E. E. Maĭorov, "Optical properties of green liquors and the use of commercial refractometry to monitor their composition in the production of sulfate cellulose," Journal of Optical Technology. 81(1), 39-43 (2014). https://doi.org/10.1364/JOT.81.000039

Abstract:

At the level of the requirements of refractometric technologies, this paper presents the results of measurements of the refractive index, its concentration and temperature dependences, and also the UV absorption in green liquors formed in the production of sulfate cellulose. The design features and technical–operational parameters of a commercial refractometer for monitoring the overall alkalinity of green liquors are briefly considered.

Keywords:

commercial refractometers, refractometric sensors in cellulose production, optical properties of green liquors, green liquors refractive index, temperature coefficient of refractive index in green liquors, UV absorption in green liquors solutions

OCIS codes: 120.5710, 300.6540

References:

1. Yu. N. Nepenin, Cellulose Technology. Production of Sulfate Cellulose (Lesnaya Promyshlennost’, Moscow, 1990).
2. B. D. Bogomolov and S. A. Sapotitskiı˘, Processing of Alkali Sulfates and Sulfites (Lesnaya Promyshlennost’, Moscow, 1989).
3. L. A. Milovidova, Yu. V. Sevast’yanova, G. V. Komarova, and V. K. Dubovyı˘, Regeneration of the Chemicals in the Production of Sulfate Cellulose. Causticization and the Regeneration of Lime (Izd. Sever. (Arktich.) Fed. Univ., Arkhangel’sk, 2010).
4. “Refractometry,” Tekhnokon Engineering Center, Russia, sor. 2001–2011, http://www.tcon.ru/refr/refract.htm.
5. N. P. Belov, O. S. Gaı˘dukova, I. A. Panov, A. Yu. Patyaev, Yu. Yu. Smirnov, A. S. Sherstobitova, and A. D. Yas’kov, “Laboratory spectrophotometer for the ultraviolet region,” Izv. Vyssh. Uchebn. Zaved. Prib. 54, No. 5, 81 (2011).
6. K. A. Akmarov, V. V. Artem’ev, N. P. Belov, S. N. Lapshov, E. E. Maı˘orov, A. Yu. Patyaev, A. V. Smirnov, A. S. Sherstobitova, K. A. Shishova, and A. D. Yas’kov, “Commercial refractometers and their application for monitoring chemical products,” Pribory No. 4, 1 (2012).
7. N. P. Belov, S. N. Lapshov, E. E. Maı˘orov, A. S. Sherstobitova, and A. D. Yas’kov, “Optical properties of solutions of black liquors and refractometric facilities for monitoring the concentration of the dry residue in the sulfate production of cellulose,” Zh. Prikl. Spektrosk. 79, 514 (2012).
8. M. M. Utegenov, E. A. Kopylova, and Z. A. Estemesov, “The electronic spectra of synthetic water–alkali solutions,” in the Messenger of the K. I. Satpaev Kazakh National Technical University, 2006, pp. 90–96.