Development Document for Ferroalloy Manufacturing .
FIGURES AND TABLES Figure 1 Cross section of Open Furnace 13 Table 1 calcium carbide Producers 26 Figure 2 Open Furnace .calcium Carbide Process Flow · 2 7 Diagram Figure 3 covered Furnace Calcium carbide Process Flow 28 Diagram With Dry Collection Device Figure 4 covered Furnace Calcium carbide Process Flow 29 Diagram With wet Air Pollution Device