| 摘要 |
FIELD: process engineering.SUBSTANCE: invention can be used in production of carbon materials used in nuclear power engineering, aircraft and space engineering, machine building. Proposed method for production of isotropic pitch semi-coke from initial cone with softening point of up to 100°C comprises carbonisation of said initial coke. Prior to carbonisation, initial coke is subjected to heat treatment in the presence of condensing additive and air. Heat treatment is conducted in reactor by heating said initial coke to 300-400°C. Carbonisation is performed by gradual coke heating to not over 750°C at rarefaction in reactor of 5-10 mm of water column. Carbonisation off-gases are trapped and decontaminated by mixing with mineral acids or its vapours.EFFECT: isotropic pitch semi-coke approximating to coke "????" as per GOST 22898-78, non-polluting process.9 cl, 1 dwg, 2 tbl |
