FIELD: oil refining; aluminum industry.
SUBSTANCE: invention relates to methods for producing oil pitch used as a binder in the production of various carbon products, anode mass, structural carbon-graphite materials, it can be used in the oil refining and aluminum industries. The invention relates to a method for producing oil pitch, including a stage of heat treatment of heavy pyrolysis resin. Heat treatment is carried out by co-distillation of heavy pyrolysis resin with heavy gasoil of catalytic cracking at a content of heavy pyrolysis resin in a mixture of 40-80 wt.% at a temperature not lower than 380°C and not higher than 430°C in the liquid phase, followed by oxidation with air oxygen at a temperature of the resulting non-distillable distillation residue of 315-380°C.
EFFECT: increased yield of the oil binder pitch while improving its qualitative characteristics and simplifying the technological process.
2 cl, 3 tbl, 7 ex
| Title | Year | Author | Number |
|---|---|---|---|
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| METHOD FOR PRODUCING HIGH-DENSITY JET FUEL (OPTIONS) | 2018 |
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| METHOD FOR OBTAINING OIL PITCHES | 2011 |
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| PETROLEUM PITCH OBTAINING METHOD | 2011 |
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| METHOD OF OBTAINING OIL MEDIUM-TEMPERATURE BINDING AND IMPREGNATION PITCHES | 2017 |
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