METHOD OF PRODUCTION OF ANISOTROPIC OIL FIBRE-FORMING COAL TAR Russian patent published in 2015 - IPC C10C3/02 C10C3/08 C10C3/00 

FIELD: oil and gas industry.

SUBSTANCE: method is suggested to produce the anisotropic oil fibre-forming coal tar by means of the heat treatment of the isotropic oil coal tar in the inert atmosphere at elevated temperature 350-450°C for 5-20 hours, pressure 10-100 mm Hg with further extraction treatment of the produced heterophase coal tar, extractant stripping and treatment of the produced anisotropic coal tar in the ultrasound field to remove the extractant traces, as the extractant the light straight-run gasoline with boil point 62°C is used, it is taken in the following weight ratio light straight-run gasoline:heterophase coal tar = 5-10:1, and extraction is performed at the extractant boil point for 5-20 h.

EFFECT: production of anisotropic coal tar of good quality, and reduced prime cost of the target product.

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