FIELD: oil and gas industry.
SUBSTANCE: invention relates to the method to produce anisotropic oil pitch by means of thermal treatment of oil pitch in inert atmosphere at higher temperature, pressure of 10-50 mm mercury column with subsequent extraction treatment of the produced product with aromatic (toluene) and heterocyclic (quinoline) compounds, distillation of extractants and processing of the received anisotropic pitch in the ultrasonic field for removal of dissolvent traces.
EFFECT: increased quality of target anisotropic pitch by increasing of mesophase content in it, which makes it possible to produce high-modular carbon fibres on its basis.
1 dwg, 2 tbl, 5 ex
| Title | Year | Author | Number |
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