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Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 9, p. 5, September, 1977.
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Vyazovkin, E.S., Bautin, V.N., Bespamentov, Y.V. et al. An extraction column for alkali refining of petroleum products. Chem Petrol Eng 13, 769 (1977). https://doi.org/10.1007/BF01136288
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DOI: https://doi.org/10.1007/BF01136288