Abstract: The method of producing blast furnace coke by (1) compacting a finely divided coal wherein at least about 60% by weight of the coal has a diameter of less than about 1/8 inch to form a coal compact, which compact immediately after removal from the compacting means comprises at least about 20% by weight of particles having a particle size of less than 1/4 inch in diameter; (2) breaking the thus formed compact such that the bulk density is sufficiently increased to be capable of conversion into coke suitable for use in large blast furnaces upon carbonization thereof; and (3) carbonizing the broken compact to thereby produce blast furnace coke having a minimum hardness of about 68 and a minimum stability of about 55. The compacting is preferably performed at a pressure equivalent to that achieved by passing the finely divided coal between rolls at a pressure applied to the coal of between about 20 and about 60 tons per lineal inch.

Abstract: The method of producing blast furnace coke by (1) compacting a finely divided coal wherein at least about 60% by weight of the coal has a diameter of less than about 1/8 inch to form a coal compact, which compact immediately after removal from the compacting means comprises at least about 20% by weight of particles having a particle size of less than 1/4 inch in diameter; (2) breaking the thus formed compact such that the bulk density is sufficiently increased to be capable of conversion into coke suitable for use in large blast furnaces upon carbonization thereof; and (3) carbonizing the broken compact to thereby produce blast furnace coke having a minimum hardness of about 68 and a minimum stability of about 55. The compacting is preferably performed at a pressure equivalent to that achieved by passing the finely divided coal between rolls at a pressure applied to the coal of between about 20 and about 60 tons per lineal inch.

Abstract: An improved process for carbonization of agglomerates to produce formcoke suitable for use in ore reduction furnaces, wherein green formcoke agglomerates are mixed with separator particles of sufficient size and quantity to allow heating gases to pass through the mixture and to prevent the green agglomerates from sticking together while maintaining the mixture as a stationary bed, maintaining the mixture as a stationary bed while passing heating gases through the bed to set the green agglomerates to enable the shape to be maintained in subsequent handling during carbonization and then carbonizing the set agglomerates by heating to a temperature between about 1200.degree. F and about 2300.degree. F. Formcoke of very good strength is produced from pellets formed by tumbling a low density char having a particle size of less than about 100 mesh and a hydrocarbon binder.