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- Title
SUSPENSION OLIGOMERIZATION OF C9 HYDROCARBON FRACTION INITIATED BY ALIPHATIC N-SUBSTITUTED AMINOPEROXIDES.
- Authors
Subtelnyy, R. O.; Zhuravskyi, Y. V.; Dzinyak, B. O.
- Abstract
We investigated the production of petroleum resins by suspension oligomerization of С9 hydrocarbon fraction initiated by aliphatic aminoperoxides. The reaction mixture consisted of a dispersion medium (water), a dispersed phase (C9 fraction), an initiator, which is soluble in the dispersed phase, and a suspension stabilizer. In the range of variables studied, reaction temperature (313-353 K) and initiator concentration (0.032-0.096 mol/l) do not have a significant effect on the oligomers yield. The process conditions most influencing the course of suspension oligomerization of the С9 fraction are as follows: stirring intensity (Re=2290-13450) with the correlation index of 0.88, reaction time (30-240 min) with the correlation index of 0.87 and the ratio of dispersed phase to dispersed medium (1:1-1:4) with the correlation index of -0.91. The correlation between the yield and bromine number (correlation index of -0.82) confirmed the passage of oligomerization reaction via the unsaturated bonds of the monomer. The hydrocarbon resins obtained by low-temperature suspension oligomerization were mainly cooligomers of styrene and its derivatives. As a result of suspension oligomerization at low temperatures, products were obtained which were characterized by a light color (color index of 10-20 mg I2/100 ml), a molecular weight of 505-530 and a softening point of 347-354 K.
- Subjects
OLIGOMERIZATION; STYRENE derivatives; PETROLEUM production; HYDROCARBONS; LOW temperatures
- Publication
Issues of Chemistry & Chemical Technology / Voprosy Khimii & Khimicheskoi Tekhnologii, 2023, Issue 4, p105
- ISSN
0321-4095
- Publication type
Article
- DOI
10.32434/0321-4095-2023-149-4-105-112