Journal of Siberian Federal University. Chemistry / Acidity Study of Donor-Acceptor Complexes of Boric Acid with Polyols for Oil Displacing Compositions0

Full text (.pdf)
Issue
Journal of Siberian Federal University. Chemistry. 2019 12 (3)
Authors
Kuvshinov, Vladimir A.; Altunina, Lyubov K.; Stasieva, Lyubov A.; Kuvshinov, Ivan V.
Contact information
Kuvshinov, Vladimir A.: Institute of Petroleum Chemistry SB RAS 4 Akademichesky, Tomsk, 634055, Russia; Altunina, Lyubov K.: Institute of Petroleum Chemistry SB RAS 4 Akademichesky, Tomsk, 634055, Russia; ; Stasieva, Lyubov A.: Institute of Petroleum Chemistry SB RAS 4 Akademichesky, Tomsk, 634055, Russia; Kuvshinov, Ivan V.: Institute of Petroleum Chemistry SB RAS 4 Akademichesky, Tomsk, 634055, Russia
Keywords
coordinating solvents; complex compounds; polyolboric acids; polyols; oil recovery; physicochemical methods; oil-displacing chemical compositions; high viscosity oil
Abstract

The results of theoretical and experimental studies of the acidity of donor-acceptor complexes of boric acid with polyols – glycerol and sorbitol, which were used in the development of oil-displacing compositions, are presented. A model of donor-acceptor acid-base equilibria in coordinating polyol solvents has been created, due to which the constants of polyolboric acids formation and ionization were determined by pH-meter and electrical conductivity methods. The obtained constant values were used to calculate the compositions buffer capacity. Due to the using a mixture of polyolboric acids in the compositions at various ratios it was possible to regulate the range of the buffer action

Pages
364-373
DOI
10.17516/1998-2836-0133
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/125621