Abstract
A mechanism of deasphalting and fractionation of Ashal'chinsk natural bitumen with acetone was studied by pulse NMR. The features of distribution of components of the initial material in acetone solutions in deasphalting and also structural variations in the colloidal system resulting in separation of fractions when water is added in portions to the solution were studied. The structural-group composition of the separation products was characterized on the basis of NMR and IR data.
Similar content being viewed by others
REFERENCES
Khusnutdinov, I.Sh., Kozin, V.G., and Kopylov, A.Yu., Zh. Prikl. Khim., 1998, vol. 71, no. 8, pp. 1019–1023.
RF Patent 2 055 858.
Rozental', D.A., Posadov, I.A., Popov, O.G., and Paukku, A.N., Metody opredeleniya i rascheta strukturnykh parametrov fraktsii tyazhelykh neftyanykh ostatkov: Uchebnoe posobie (Methods for Determination and Evaluation of Structural Parameters of Fractions of Heavy Petroleum Residues: A Textbook), Leningrad: Leningr. Tekhnol. Inst., 1981.
Farrar, T.G. and Becker, E.D., Pulse and Fourier Transform NMR: Introduction to Theory and Methods, New York: Academic, 1971.
Vashman, A.A. and Pronin, I.S., Yadernaya magnitnaya relaksatsiya i ee primenenie v khimicheskoi fizike (Nuclear Magnetic Relaxation and Its Application to Chemical Physics), Moscow: Nauka, 1979.
Kashaev, R.S., Tarasov, V.F., Idiyatullin, Z.Sh., et al., Prib. Tekh. Eksp., 1993, no. 1, pp. 242–243.
Kashaev, R.S., Zh. Fiz. Khim., 1999, vol. 73, no. 1, pp. 1972–1977.
USSR Inventor's Certificate no. 1 583 823.
Kazakova, L.P. and Krein, S.E., Fiziko-khimicheskie osnovy proizvodstva neftyanykh masel (Physicochemical Principles of Production of Petroleum Oils), Moscow: Khimiya, 1978.
Pople, J.A., Schneider, W.G., and Bernstein, H.J., High-Resolution Nuclear Magnetic Resonance, New York: McGraw-Hill, 1959.
Kalabin, G.A., Polonov, V.M., Smirnov, M.B., et al., Neftekhimiya, 1986, vol. 26, no. 4, pp. 435–463.
Botneva, T.A., Il'ina, A.A., Terskoi, Ya.A., et al., Metodicheskoe rukovodstvo po lyuminestsentno-bituminologicheskim i spektral'nym metodam issledovaniya organicheskogo veshchestva porod i neftei (A Guide for Bitumen-Luminescence and Spectral Methods for Studying Organic Substances of Rocks and Crude Oils), Moscow: Nedra, 1979.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kozin, V.G., Kopylov, A.Y. & Kashaev, R.S. The Use of Pulse Nuclear Magnetic Resonance for Studying the Mechanism of Solvation Separation of Natural Bitumen. Russian Journal of Applied Chemistry 74, 870–876 (2001). https://doi.org/10.1023/A:1012730025808
Issue Date:
DOI: https://doi.org/10.1023/A:1012730025808