RU2411283C1 RU2009129460/05A RU2009129460A RU2411283C1 RU 2411283 C1 RU2411283 C1 RU 2411283C1 RU 2009129460/05 A RU2009129460/05 A RU 2009129460/05A RU 2009129460 A RU2009129460 A RU 2009129460A RU 2411283 C1 RU2411283 C1 RU 2411283C1 Authority RU Russia Prior art keywords coking additive coal coke point Prior art date Application …