Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2018

Идентификатор DOI: 10.1021/acs.iecr.7b01112

Аннотация: A new high-performance system for lactic acid (HL) extraction from glucose-containing solutions is proposed. Trialkylbenzylammonium sulfate (C7-C9 fraction) with p-tert-butyl phenol in a diluent is used as the extractant. The maximum extraction region for HL is found to be at pH = 5.0-7.0, which coincides with the range of optimal pH values for glucose conversion to lactic acid. In five extraction stages, at an organic to aqueous phase ratio of 1:1, the acid recovery is 96.7%. HL stripping is carried out with 2.0-3.0 M NaOH solutions, which achieves a significant increase in HL concentration. The stripping process in alkaline medium is easy (not less than 93.45% in one stage) due to the formation of trialkylbenzylammonium phenolate in the organic phase. Regeneration and conversion of the extractant to the SO4-form (TABAS) are carried out by treating the organic phase with sulfuric acid.

Журнал: Industrial and Engineering Chemistry Research

Выпуск журнала: Т. 57, № 5

Номера страниц: 1331-1336

ISSN журнала: 08885885

Издатель: American Chemical Society

• Fleitlikh I.Y. (Institute of Chemistry and Chemical Technology SB RAS,Federal Research Center Krasnoyarsk Science Center SB RAS)
• Kuznetsov B.N. (Institute of Chemistry and Chemical Technology SB RAS,Federal Research Center Krasnoyarsk Science Center SB RAS)
• Nikiforova L.K. (Institute of Chemistry and Chemical Technology SB RAS,Federal Research Center Krasnoyarsk Science Center SB RAS)
• Grigorieva N.A. (Institute of Chemistry and Chemical Technology SB RAS,Federal Research Center Krasnoyarsk Science Center SB RAS)
• Beregovtsova N.G. (Institute of Chemistry and Chemical Technology SB RAS,Federal Research Center Krasnoyarsk Science Center SB RAS)

• Ядро РИНЦ (eLIBRARY.RU)