cokemaking and iron ore preparation are described in Chapter 3. CO 2abatement from the different iron production routes, namely blast furnaces (BFs), direct reduction processes (which produce DRI) and the smelting reduction processes (which eliminate the need for coking and iron ore sinter plants) are covered in the following three chapters.
· Canadian iron ores consist mostly of hematite or magnetite, and some siderite and ilmenite. Besides oxides of iron, iron ores contain gangue — minerals such as quartz or fluorite not wanted in iron making. Ores containing proportions of iron of 54 per cent or more are considered highgrade, while those containing lower proportions of iron must be upgraded in order to become .