Technical Review UDC 669 . 1 . 054 . 82 Overview of Iron ...
Slag treatment processes Figure 2 1) shows the flow diagram of the processes to treat different kinds of iron/steel slag. (1) Cooling and treatment of BF slag As seen in Fig. 1, roughly 80% of BF slag is rapidly cooled with highpressure water jets from the molten state at about 1 500°C into glassy sand called granulated slag.