“…It is similar in structure and form to many brittle types of foam such as are found in ceramics and glasses [3]. It is produced in large, fused, strong pieces with a much lower reactivity (Coke Reactivity Index, CRI [4] of 18-40% [5,6]) than conventional brown coal chars and is therefore suitable to be used in a blast furnace to produce iron from iron ore. Reactivity and strength are the most important parameters that characterize the quality of the coke [7,8] and its behavior in a blast furnace [1].…”